Mercurial > hg > xemacs-beta
annotate src/floatfns.c @ 4717:fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
zero-valued ratio. See xemacs-patches message
<870180fe0910080956h5d674f03q185d11aa6fc57bd2@mail.gmail.com>.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Mon, 12 Oct 2009 12:10:04 -0600 |
| parents | b5e1d4f6b66f |
| children | f31c12360354 e0db3c197671 |
| rev | line source |
|---|---|
| 428 | 1 /* Primitive operations on floating point for XEmacs Lisp interpreter. |
| 2 Copyright (C) 1988, 1993, 1994 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: FSF 19.30. */ | |
| 22 | |
| 23 /* ANSI C requires only these float functions: | |
| 24 acos, asin, atan, atan2, ceil, cos, cosh, exp, fabs, floor, fmod, | |
| 25 frexp, ldexp, log, log10, modf, pow, sin, sinh, sqrt, tan, tanh. | |
| 26 | |
| 27 Define HAVE_INVERSE_HYPERBOLIC if you have acosh, asinh, and atanh. | |
| 28 Define HAVE_CBRT if you have cbrt(). | |
| 29 Define HAVE_RINT if you have rint(). | |
| 30 If you don't define these, then the appropriate routines will be simulated. | |
| 31 | |
| 32 Define HAVE_MATHERR if on a system supporting the SysV matherr() callback. | |
| 33 (This should happen automatically.) | |
| 34 | |
| 35 Define FLOAT_CHECK_ERRNO if the float library routines set errno. | |
| 36 This has no effect if HAVE_MATHERR is defined. | |
| 37 | |
| 38 Define FLOAT_CATCH_SIGILL if the float library routines signal SIGILL. | |
| 39 (What systems actually do this? Let me know. -jwz) | |
| 40 | |
| 41 Define FLOAT_CHECK_DOMAIN if the float library doesn't handle errors by | |
| 42 either setting errno, or signalling SIGFPE/SIGILL. Otherwise, domain and | |
| 43 range checking will happen before calling the float routines. This has | |
| 44 no effect if HAVE_MATHERR is defined (since matherr will be called when | |
| 45 a domain error occurs). | |
| 46 */ | |
| 47 | |
| 48 #include <config.h> | |
| 49 #include "lisp.h" | |
| 50 #include "syssignal.h" | |
| 51 #include "sysfloat.h" | |
| 52 | |
| 430 | 53 /* The code uses emacs_rint, so that it works to undefine HAVE_RINT |
| 54 if `rint' exists but does not work right. */ | |
| 55 #ifdef HAVE_RINT | |
| 56 #define emacs_rint rint | |
| 57 #else | |
| 428 | 58 static double |
| 430 | 59 emacs_rint (double x) |
| 428 | 60 { |
| 61 double r = floor (x + 0.5); | |
| 62 double diff = fabs (r - x); | |
| 63 /* Round to even and correct for any roundoff errors. */ | |
| 64 if (diff >= 0.5 && (diff > 0.5 || r != 2.0 * floor (r / 2.0))) | |
| 65 r += r < x ? 1.0 : -1.0; | |
| 66 return r; | |
| 67 } | |
| 68 #endif | |
| 69 | |
| 70 /* Nonzero while executing in floating point. | |
| 71 This tells float_error what to do. */ | |
| 72 static int in_float; | |
| 73 | |
| 74 /* If an argument is out of range for a mathematical function, | |
| 75 here is the actual argument value to use in the error message. */ | |
| 76 static Lisp_Object float_error_arg, float_error_arg2; | |
| 442 | 77 static const char *float_error_fn_name; |
| 428 | 78 |
| 79 /* Evaluate the floating point expression D, recording NUM | |
| 80 as the original argument for error messages. | |
| 81 D is normally an assignment expression. | |
| 82 Handle errors which may result in signals or may set errno. | |
| 83 | |
| 84 Note that float_error may be declared to return void, so you can't | |
| 85 just cast the zero after the colon to (SIGTYPE) to make the types | |
| 86 check properly. */ | |
| 87 #ifdef FLOAT_CHECK_ERRNO | |
| 88 #define IN_FLOAT(d, name, num) \ | |
| 89 do { \ | |
| 90 float_error_arg = num; \ | |
| 91 float_error_fn_name = name; \ | |
| 92 in_float = 1; errno = 0; (d); in_float = 0; \ | |
| 93 if (errno != 0) in_float_error (); \ | |
| 94 } while (0) | |
| 95 #define IN_FLOAT2(d, name, num, num2) \ | |
| 96 do { \ | |
| 97 float_error_arg = num; \ | |
| 98 float_error_arg2 = num2; \ | |
| 99 float_error_fn_name = name; \ | |
| 100 in_float = 2; errno = 0; (d); in_float = 0; \ | |
| 101 if (errno != 0) in_float_error (); \ | |
| 102 } while (0) | |
| 103 #else | |
| 104 #define IN_FLOAT(d, name, num) (in_float = 1, (d), in_float = 0) | |
| 105 #define IN_FLOAT2(d, name, num, num2) (in_float = 2, (d), in_float = 0) | |
| 106 #endif | |
| 107 | |
| 108 | |
| 109 #define arith_error(op,arg) \ | |
| 771 | 110 Fsignal (Qarith_error, list2 (build_msg_string (op), arg)) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
111 #define arith_error2(op,a1,a2) \ |
|
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
112 Fsignal (Qarith_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 113 #define range_error(op,arg) \ |
| 771 | 114 Fsignal (Qrange_error, list2 (build_msg_string (op), arg)) |
| 428 | 115 #define range_error2(op,a1,a2) \ |
| 771 | 116 Fsignal (Qrange_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 117 #define domain_error(op,arg) \ |
| 771 | 118 Fsignal (Qdomain_error, list2 (build_msg_string (op), arg)) |
| 428 | 119 #define domain_error2(op,a1,a2) \ |
| 771 | 120 Fsignal (Qdomain_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 121 |
| 122 | |
| 123 /* Convert float to Lisp Integer if it fits, else signal a range | |
| 1983 | 124 error using the given arguments. If bignums are available, range errors |
| 125 are never signaled. */ | |
| 428 | 126 static Lisp_Object |
| 2286 | 127 float_to_int (double x, |
| 128 #ifdef HAVE_BIGNUM | |
| 129 const char *UNUSED (name), Lisp_Object UNUSED (num), | |
| 130 Lisp_Object UNUSED (num2) | |
| 131 #else | |
| 132 const char *name, Lisp_Object num, Lisp_Object num2 | |
| 133 #endif | |
| 134 ) | |
| 428 | 135 { |
| 1983 | 136 #ifdef HAVE_BIGNUM |
| 137 bignum_set_double (scratch_bignum, x); | |
| 138 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 139 #else | |
| 2039 | 140 REGISTER EMACS_INT result = (EMACS_INT) x; |
| 141 | |
| 142 if (result > EMACS_INT_MAX || result < EMACS_INT_MIN) | |
| 143 { | |
| 144 if (!UNBOUNDP (num2)) | |
| 145 range_error2 (name, num, num2); | |
| 146 else | |
| 147 range_error (name, num); | |
| 148 } | |
| 149 return make_int (result); | |
| 1983 | 150 #endif /* HAVE_BIGNUM */ |
| 428 | 151 } |
| 152 | |
| 153 | |
| 154 static void | |
| 155 in_float_error (void) | |
| 156 { | |
| 157 switch (errno) | |
| 158 { | |
| 159 case 0: | |
| 160 break; | |
| 161 case EDOM: | |
| 162 if (in_float == 2) | |
| 163 domain_error2 (float_error_fn_name, float_error_arg, float_error_arg2); | |
| 164 else | |
| 165 domain_error (float_error_fn_name, float_error_arg); | |
| 166 break; | |
| 167 case ERANGE: | |
| 168 range_error (float_error_fn_name, float_error_arg); | |
| 169 break; | |
| 170 default: | |
| 171 arith_error (float_error_fn_name, float_error_arg); | |
| 172 break; | |
| 173 } | |
| 174 } | |
| 175 | |
| 176 | |
| 177 static Lisp_Object | |
| 2286 | 178 mark_float (Lisp_Object UNUSED (obj)) |
| 428 | 179 { |
| 180 return Qnil; | |
| 181 } | |
| 182 | |
| 183 static int | |
| 2286 | 184 float_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth)) |
| 428 | 185 { |
| 186 return (extract_float (obj1) == extract_float (obj2)); | |
| 187 } | |
| 188 | |
| 665 | 189 static Hashcode |
| 2286 | 190 float_hash (Lisp_Object obj, int UNUSED (depth)) |
| 428 | 191 { |
| 192 /* mod the value down to 32-bit range */ | |
| 193 /* #### change for 64-bit machines */ | |
| 194 return (unsigned long) fmod (extract_float (obj), 4e9); | |
| 195 } | |
| 196 | |
| 1204 | 197 static const struct memory_description float_description[] = { |
| 428 | 198 { XD_END } |
| 199 }; | |
| 200 | |
| 934 | 201 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("float", float, |
| 202 1, /*dumpable-flag*/ | |
| 203 mark_float, print_float, 0, float_equal, | |
| 204 float_hash, float_description, | |
| 205 Lisp_Float); | |
| 428 | 206 |
| 207 /* Extract a Lisp number as a `double', or signal an error. */ | |
| 208 | |
| 209 double | |
| 210 extract_float (Lisp_Object num) | |
| 211 { | |
| 212 if (FLOATP (num)) | |
| 213 return XFLOAT_DATA (num); | |
| 214 | |
| 215 if (INTP (num)) | |
| 216 return (double) XINT (num); | |
| 217 | |
| 1983 | 218 #ifdef HAVE_BIGNUM |
| 219 if (BIGNUMP (num)) | |
| 220 return bignum_to_double (XBIGNUM_DATA (num)); | |
| 221 #endif | |
| 222 | |
| 223 #ifdef HAVE_RATIO | |
| 224 if (RATIOP (num)) | |
| 225 return ratio_to_double (XRATIO_DATA (num)); | |
| 226 #endif | |
| 227 | |
| 228 #ifdef HAVE_BIGFLOAT | |
| 229 if (BIGFLOATP (num)) | |
| 230 return bigfloat_to_double (XBIGFLOAT_DATA (num)); | |
| 231 #endif | |
| 232 | |
| 428 | 233 return extract_float (wrong_type_argument (Qnumberp, num)); |
| 234 } | |
| 235 | |
| 236 /* Trig functions. */ | |
| 237 | |
| 238 DEFUN ("acos", Facos, 1, 1, 0, /* | |
| 444 | 239 Return the inverse cosine of NUMBER. |
| 428 | 240 */ |
| 444 | 241 (number)) |
| 428 | 242 { |
| 444 | 243 double d = extract_float (number); |
| 428 | 244 #ifdef FLOAT_CHECK_DOMAIN |
| 245 if (d > 1.0 || d < -1.0) | |
| 444 | 246 domain_error ("acos", number); |
| 428 | 247 #endif |
| 444 | 248 IN_FLOAT (d = acos (d), "acos", number); |
| 428 | 249 return make_float (d); |
| 250 } | |
| 251 | |
| 252 DEFUN ("asin", Fasin, 1, 1, 0, /* | |
| 444 | 253 Return the inverse sine of NUMBER. |
| 428 | 254 */ |
| 444 | 255 (number)) |
| 428 | 256 { |
| 444 | 257 double d = extract_float (number); |
| 428 | 258 #ifdef FLOAT_CHECK_DOMAIN |
| 259 if (d > 1.0 || d < -1.0) | |
| 444 | 260 domain_error ("asin", number); |
| 428 | 261 #endif |
| 444 | 262 IN_FLOAT (d = asin (d), "asin", number); |
| 428 | 263 return make_float (d); |
| 264 } | |
| 265 | |
| 266 DEFUN ("atan", Fatan, 1, 2, 0, /* | |
| 444 | 267 Return the inverse tangent of NUMBER. |
| 268 If optional second argument NUMBER2 is provided, | |
| 269 return atan2 (NUMBER, NUMBER2). | |
| 428 | 270 */ |
| 444 | 271 (number, number2)) |
| 428 | 272 { |
| 444 | 273 double d = extract_float (number); |
| 428 | 274 |
| 444 | 275 if (NILP (number2)) |
| 276 IN_FLOAT (d = atan (d), "atan", number); | |
| 428 | 277 else |
| 278 { | |
| 444 | 279 double d2 = extract_float (number2); |
| 428 | 280 #ifdef FLOAT_CHECK_DOMAIN |
| 281 if (d == 0.0 && d2 == 0.0) | |
| 444 | 282 domain_error2 ("atan", number, number2); |
| 428 | 283 #endif |
| 444 | 284 IN_FLOAT2 (d = atan2 (d, d2), "atan", number, number2); |
| 428 | 285 } |
| 286 return make_float (d); | |
| 287 } | |
| 288 | |
| 289 DEFUN ("cos", Fcos, 1, 1, 0, /* | |
| 444 | 290 Return the cosine of NUMBER. |
| 428 | 291 */ |
| 444 | 292 (number)) |
| 428 | 293 { |
| 444 | 294 double d = extract_float (number); |
| 295 IN_FLOAT (d = cos (d), "cos", number); | |
| 428 | 296 return make_float (d); |
| 297 } | |
| 298 | |
| 299 DEFUN ("sin", Fsin, 1, 1, 0, /* | |
| 444 | 300 Return the sine of NUMBER. |
| 428 | 301 */ |
| 444 | 302 (number)) |
| 428 | 303 { |
| 444 | 304 double d = extract_float (number); |
| 305 IN_FLOAT (d = sin (d), "sin", number); | |
| 428 | 306 return make_float (d); |
| 307 } | |
| 308 | |
| 309 DEFUN ("tan", Ftan, 1, 1, 0, /* | |
| 444 | 310 Return the tangent of NUMBER. |
| 428 | 311 */ |
| 444 | 312 (number)) |
| 428 | 313 { |
| 444 | 314 double d = extract_float (number); |
| 428 | 315 double c = cos (d); |
| 316 #ifdef FLOAT_CHECK_DOMAIN | |
| 317 if (c == 0.0) | |
| 444 | 318 domain_error ("tan", number); |
| 428 | 319 #endif |
| 444 | 320 IN_FLOAT (d = (sin (d) / c), "tan", number); |
| 428 | 321 return make_float (d); |
| 322 } | |
| 323 | |
| 324 /* Bessel functions */ | |
| 325 #if 0 /* Leave these out unless we find there's a reason for them. */ | |
| 326 | |
| 327 DEFUN ("bessel-j0", Fbessel_j0, 1, 1, 0, /* | |
| 444 | 328 Return the bessel function j0 of NUMBER. |
| 428 | 329 */ |
| 444 | 330 (number)) |
| 428 | 331 { |
| 444 | 332 double d = extract_float (number); |
| 333 IN_FLOAT (d = j0 (d), "bessel-j0", number); | |
| 428 | 334 return make_float (d); |
| 335 } | |
| 336 | |
| 337 DEFUN ("bessel-j1", Fbessel_j1, 1, 1, 0, /* | |
| 444 | 338 Return the bessel function j1 of NUMBER. |
| 428 | 339 */ |
| 444 | 340 (number)) |
| 428 | 341 { |
| 444 | 342 double d = extract_float (number); |
| 343 IN_FLOAT (d = j1 (d), "bessel-j1", number); | |
| 428 | 344 return make_float (d); |
| 345 } | |
| 346 | |
| 347 DEFUN ("bessel-jn", Fbessel_jn, 2, 2, 0, /* | |
| 444 | 348 Return the order N bessel function output jn of NUMBER. |
| 349 The first number (the order) is truncated to an integer. | |
| 428 | 350 */ |
| 444 | 351 (number1, number2)) |
| 428 | 352 { |
| 444 | 353 int i1 = extract_float (number1); |
| 354 double f2 = extract_float (number2); | |
| 428 | 355 |
| 444 | 356 IN_FLOAT (f2 = jn (i1, f2), "bessel-jn", number1); |
| 428 | 357 return make_float (f2); |
| 358 } | |
| 359 | |
| 360 DEFUN ("bessel-y0", Fbessel_y0, 1, 1, 0, /* | |
| 444 | 361 Return the bessel function y0 of NUMBER. |
| 428 | 362 */ |
| 444 | 363 (number)) |
| 428 | 364 { |
| 444 | 365 double d = extract_float (number); |
| 366 IN_FLOAT (d = y0 (d), "bessel-y0", number); | |
| 428 | 367 return make_float (d); |
| 368 } | |
| 369 | |
| 370 DEFUN ("bessel-y1", Fbessel_y1, 1, 1, 0, /* | |
| 444 | 371 Return the bessel function y1 of NUMBER. |
| 428 | 372 */ |
| 444 | 373 (number)) |
| 428 | 374 { |
| 444 | 375 double d = extract_float (number); |
| 376 IN_FLOAT (d = y1 (d), "bessel-y0", number); | |
| 428 | 377 return make_float (d); |
| 378 } | |
| 379 | |
| 380 DEFUN ("bessel-yn", Fbessel_yn, 2, 2, 0, /* | |
| 444 | 381 Return the order N bessel function output yn of NUMBER. |
| 382 The first number (the order) is truncated to an integer. | |
| 428 | 383 */ |
| 444 | 384 (number1, number2)) |
| 428 | 385 { |
| 444 | 386 int i1 = extract_float (number1); |
| 387 double f2 = extract_float (number2); | |
| 428 | 388 |
| 444 | 389 IN_FLOAT (f2 = yn (i1, f2), "bessel-yn", number1); |
| 428 | 390 return make_float (f2); |
| 391 } | |
| 392 | |
| 393 #endif /* 0 (bessel functions) */ | |
| 394 | |
| 395 /* Error functions. */ | |
| 396 #if 0 /* Leave these out unless we see they are worth having. */ | |
| 397 | |
| 398 DEFUN ("erf", Ferf, 1, 1, 0, /* | |
| 444 | 399 Return the mathematical error function of NUMBER. |
| 428 | 400 */ |
| 444 | 401 (number)) |
| 428 | 402 { |
| 444 | 403 double d = extract_float (number); |
| 404 IN_FLOAT (d = erf (d), "erf", number); | |
| 428 | 405 return make_float (d); |
| 406 } | |
| 407 | |
| 408 DEFUN ("erfc", Ferfc, 1, 1, 0, /* | |
| 444 | 409 Return the complementary error function of NUMBER. |
| 428 | 410 */ |
| 444 | 411 (number)) |
| 428 | 412 { |
| 444 | 413 double d = extract_float (number); |
| 414 IN_FLOAT (d = erfc (d), "erfc", number); | |
| 428 | 415 return make_float (d); |
| 416 } | |
| 417 | |
| 418 DEFUN ("log-gamma", Flog_gamma, 1, 1, 0, /* | |
| 444 | 419 Return the log gamma of NUMBER. |
| 428 | 420 */ |
| 444 | 421 (number)) |
| 428 | 422 { |
| 444 | 423 double d = extract_float (number); |
| 424 IN_FLOAT (d = lgamma (d), "log-gamma", number); | |
| 428 | 425 return make_float (d); |
| 426 } | |
| 427 | |
| 428 #endif /* 0 (error functions) */ | |
| 429 | |
| 430 | |
| 431 /* Root and Log functions. */ | |
| 432 | |
| 433 DEFUN ("exp", Fexp, 1, 1, 0, /* | |
| 444 | 434 Return the exponential base e of NUMBER. |
| 428 | 435 */ |
| 444 | 436 (number)) |
| 428 | 437 { |
| 444 | 438 double d = extract_float (number); |
| 428 | 439 #ifdef FLOAT_CHECK_DOMAIN |
| 440 if (d > 709.7827) /* Assume IEEE doubles here */ | |
| 444 | 441 range_error ("exp", number); |
| 428 | 442 else if (d < -709.0) |
| 443 return make_float (0.0); | |
| 444 else | |
| 445 #endif | |
| 444 | 446 IN_FLOAT (d = exp (d), "exp", number); |
| 428 | 447 return make_float (d); |
| 448 } | |
| 449 | |
| 450 DEFUN ("expt", Fexpt, 2, 2, 0, /* | |
| 444 | 451 Return the exponential NUMBER1 ** NUMBER2. |
| 428 | 452 */ |
| 444 | 453 (number1, number2)) |
| 428 | 454 { |
| 1983 | 455 #ifdef HAVE_BIGNUM |
| 456 if (INTEGERP (number1) && INTP (number2)) | |
| 457 { | |
| 458 if (INTP (number1)) | |
| 459 { | |
| 460 bignum_set_long (scratch_bignum2, XREALINT (number1)); | |
| 461 bignum_pow (scratch_bignum, scratch_bignum2, XREALINT (number2)); | |
| 462 } | |
| 463 else | |
| 464 bignum_pow (scratch_bignum, XBIGNUM_DATA (number1), | |
| 465 XREALINT (number2)); | |
| 466 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 467 } | |
| 468 #endif | |
| 469 | |
| 444 | 470 if (INTP (number1) && /* common lisp spec */ |
| 471 INTP (number2)) /* don't promote, if both are ints */ | |
| 428 | 472 { |
| 473 EMACS_INT retval; | |
| 444 | 474 EMACS_INT x = XINT (number1); |
| 475 EMACS_INT y = XINT (number2); | |
| 428 | 476 |
| 477 if (y < 0) | |
| 478 { | |
| 479 if (x == 1) | |
| 480 retval = 1; | |
| 481 else if (x == -1) | |
| 482 retval = (y & 1) ? -1 : 1; | |
| 483 else | |
| 484 retval = 0; | |
| 485 } | |
| 486 else | |
| 487 { | |
| 488 retval = 1; | |
| 489 while (y > 0) | |
| 490 { | |
| 491 if (y & 1) | |
| 492 retval *= x; | |
| 493 x *= x; | |
| 494 y = (EMACS_UINT) y >> 1; | |
| 495 } | |
| 496 } | |
| 497 return make_int (retval); | |
| 498 } | |
| 499 | |
| 1983 | 500 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_pow) |
| 501 if (BIGFLOATP (number1) && INTEGERP (number2)) | |
| 502 { | |
| 2057 | 503 unsigned long exponent; |
| 1983 | 504 |
| 505 #ifdef HAVE_BIGNUM | |
| 506 if (BIGNUMP (number2)) | |
| 2057 | 507 exponent = bignum_to_ulong (XBIGNUM_DATA (number2)); |
| 1983 | 508 else |
| 509 #endif | |
| 2057 | 510 exponent = XUINT (number2); |
| 1983 | 511 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number1)); |
| 2057 | 512 bigfloat_pow (scratch_bigfloat, XBIGFLOAT_DATA (number1), exponent); |
| 1983 | 513 return make_bigfloat_bf (scratch_bigfloat); |
| 514 } | |
| 515 #endif | |
| 516 | |
| 428 | 517 { |
| 444 | 518 double f1 = extract_float (number1); |
| 519 double f2 = extract_float (number2); | |
| 428 | 520 /* Really should check for overflow, too */ |
| 521 if (f1 == 0.0 && f2 == 0.0) | |
| 522 f1 = 1.0; | |
| 523 # ifdef FLOAT_CHECK_DOMAIN | |
| 524 else if ((f1 == 0.0 && f2 < 0.0) || (f1 < 0 && f2 != floor(f2))) | |
| 444 | 525 domain_error2 ("expt", number1, number2); |
| 428 | 526 # endif /* FLOAT_CHECK_DOMAIN */ |
| 444 | 527 IN_FLOAT2 (f1 = pow (f1, f2), "expt", number1, number2); |
| 428 | 528 return make_float (f1); |
| 529 } | |
| 530 } | |
| 531 | |
| 532 DEFUN ("log", Flog, 1, 2, 0, /* | |
| 444 | 533 Return the natural logarithm of NUMBER. |
| 534 If second optional argument BASE is given, return the logarithm of | |
| 535 NUMBER using that base. | |
| 428 | 536 */ |
| 444 | 537 (number, base)) |
| 428 | 538 { |
| 444 | 539 double d = extract_float (number); |
| 428 | 540 #ifdef FLOAT_CHECK_DOMAIN |
| 541 if (d <= 0.0) | |
| 444 | 542 domain_error2 ("log", number, base); |
| 428 | 543 #endif |
| 544 if (NILP (base)) | |
| 444 | 545 IN_FLOAT (d = log (d), "log", number); |
| 428 | 546 else |
| 547 { | |
| 548 double b = extract_float (base); | |
| 549 #ifdef FLOAT_CHECK_DOMAIN | |
| 550 if (b <= 0.0 || b == 1.0) | |
| 444 | 551 domain_error2 ("log", number, base); |
| 428 | 552 #endif |
| 553 if (b == 10.0) | |
| 444 | 554 IN_FLOAT2 (d = log10 (d), "log", number, base); |
| 428 | 555 else |
| 444 | 556 IN_FLOAT2 (d = (log (d) / log (b)), "log", number, base); |
| 428 | 557 } |
| 558 return make_float (d); | |
| 559 } | |
| 560 | |
| 561 | |
| 562 DEFUN ("log10", Flog10, 1, 1, 0, /* | |
| 444 | 563 Return the logarithm base 10 of NUMBER. |
| 428 | 564 */ |
| 444 | 565 (number)) |
| 428 | 566 { |
| 444 | 567 double d = extract_float (number); |
| 428 | 568 #ifdef FLOAT_CHECK_DOMAIN |
| 569 if (d <= 0.0) | |
| 444 | 570 domain_error ("log10", number); |
| 428 | 571 #endif |
| 444 | 572 IN_FLOAT (d = log10 (d), "log10", number); |
| 428 | 573 return make_float (d); |
| 574 } | |
| 575 | |
| 576 | |
| 577 DEFUN ("sqrt", Fsqrt, 1, 1, 0, /* | |
| 444 | 578 Return the square root of NUMBER. |
| 428 | 579 */ |
| 444 | 580 (number)) |
| 428 | 581 { |
| 1983 | 582 double d; |
| 583 | |
| 584 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_sqrt) | |
| 585 if (BIGFLOATP (number)) | |
| 586 { | |
| 587 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 588 bigfloat_sqrt (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 589 return make_bigfloat_bf (scratch_bigfloat); | |
| 590 } | |
| 591 #endif /* HAVE_BIGFLOAT */ | |
| 592 d = extract_float (number); | |
| 428 | 593 #ifdef FLOAT_CHECK_DOMAIN |
| 594 if (d < 0.0) | |
| 444 | 595 domain_error ("sqrt", number); |
| 428 | 596 #endif |
| 444 | 597 IN_FLOAT (d = sqrt (d), "sqrt", number); |
| 428 | 598 return make_float (d); |
| 599 } | |
| 600 | |
| 601 | |
| 602 DEFUN ("cube-root", Fcube_root, 1, 1, 0, /* | |
| 444 | 603 Return the cube root of NUMBER. |
| 428 | 604 */ |
| 444 | 605 (number)) |
| 428 | 606 { |
| 444 | 607 double d = extract_float (number); |
| 428 | 608 #ifdef HAVE_CBRT |
| 444 | 609 IN_FLOAT (d = cbrt (d), "cube-root", number); |
| 428 | 610 #else |
| 611 if (d >= 0.0) | |
| 444 | 612 IN_FLOAT (d = pow (d, 1.0/3.0), "cube-root", number); |
| 428 | 613 else |
| 444 | 614 IN_FLOAT (d = -pow (-d, 1.0/3.0), "cube-root", number); |
| 428 | 615 #endif |
| 616 return make_float (d); | |
| 617 } | |
| 618 | |
| 619 /* Inverse trig functions. */ | |
| 620 | |
| 621 DEFUN ("acosh", Facosh, 1, 1, 0, /* | |
| 444 | 622 Return the inverse hyperbolic cosine of NUMBER. |
| 428 | 623 */ |
| 444 | 624 (number)) |
| 428 | 625 { |
| 444 | 626 double d = extract_float (number); |
| 428 | 627 #ifdef FLOAT_CHECK_DOMAIN |
| 628 if (d < 1.0) | |
| 444 | 629 domain_error ("acosh", number); |
| 428 | 630 #endif |
| 631 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 632 IN_FLOAT (d = acosh (d), "acosh", number); |
| 428 | 633 #else |
| 444 | 634 IN_FLOAT (d = log (d + sqrt (d*d - 1.0)), "acosh", number); |
| 428 | 635 #endif |
| 636 return make_float (d); | |
| 637 } | |
| 638 | |
| 639 DEFUN ("asinh", Fasinh, 1, 1, 0, /* | |
| 444 | 640 Return the inverse hyperbolic sine of NUMBER. |
| 428 | 641 */ |
| 444 | 642 (number)) |
| 428 | 643 { |
| 444 | 644 double d = extract_float (number); |
| 428 | 645 #ifdef HAVE_INVERSE_HYPERBOLIC |
| 444 | 646 IN_FLOAT (d = asinh (d), "asinh", number); |
| 428 | 647 #else |
| 444 | 648 IN_FLOAT (d = log (d + sqrt (d*d + 1.0)), "asinh", number); |
| 428 | 649 #endif |
| 650 return make_float (d); | |
| 651 } | |
| 652 | |
| 653 DEFUN ("atanh", Fatanh, 1, 1, 0, /* | |
| 444 | 654 Return the inverse hyperbolic tangent of NUMBER. |
| 428 | 655 */ |
| 444 | 656 (number)) |
| 428 | 657 { |
| 444 | 658 double d = extract_float (number); |
| 428 | 659 #ifdef FLOAT_CHECK_DOMAIN |
| 660 if (d >= 1.0 || d <= -1.0) | |
| 444 | 661 domain_error ("atanh", number); |
| 428 | 662 #endif |
| 663 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 664 IN_FLOAT (d = atanh (d), "atanh", number); |
| 428 | 665 #else |
| 444 | 666 IN_FLOAT (d = 0.5 * log ((1.0 + d) / (1.0 - d)), "atanh", number); |
| 428 | 667 #endif |
| 668 return make_float (d); | |
| 669 } | |
| 670 | |
| 671 DEFUN ("cosh", Fcosh, 1, 1, 0, /* | |
| 444 | 672 Return the hyperbolic cosine of NUMBER. |
| 428 | 673 */ |
| 444 | 674 (number)) |
| 428 | 675 { |
| 444 | 676 double d = extract_float (number); |
| 428 | 677 #ifdef FLOAT_CHECK_DOMAIN |
| 678 if (d > 710.0 || d < -710.0) | |
| 444 | 679 range_error ("cosh", number); |
| 428 | 680 #endif |
| 444 | 681 IN_FLOAT (d = cosh (d), "cosh", number); |
| 428 | 682 return make_float (d); |
| 683 } | |
| 684 | |
| 685 DEFUN ("sinh", Fsinh, 1, 1, 0, /* | |
| 444 | 686 Return the hyperbolic sine of NUMBER. |
| 428 | 687 */ |
| 444 | 688 (number)) |
| 428 | 689 { |
| 444 | 690 double d = extract_float (number); |
| 428 | 691 #ifdef FLOAT_CHECK_DOMAIN |
| 692 if (d > 710.0 || d < -710.0) | |
| 444 | 693 range_error ("sinh", number); |
| 428 | 694 #endif |
| 444 | 695 IN_FLOAT (d = sinh (d), "sinh", number); |
| 428 | 696 return make_float (d); |
| 697 } | |
| 698 | |
| 699 DEFUN ("tanh", Ftanh, 1, 1, 0, /* | |
| 444 | 700 Return the hyperbolic tangent of NUMBER. |
| 428 | 701 */ |
| 444 | 702 (number)) |
| 428 | 703 { |
| 444 | 704 double d = extract_float (number); |
| 705 IN_FLOAT (d = tanh (d), "tanh", number); | |
| 428 | 706 return make_float (d); |
| 707 } | |
| 708 | |
| 709 /* Rounding functions */ | |
| 710 | |
| 711 DEFUN ("abs", Fabs, 1, 1, 0, /* | |
| 444 | 712 Return the absolute value of NUMBER. |
| 428 | 713 */ |
| 444 | 714 (number)) |
| 428 | 715 { |
| 444 | 716 if (FLOATP (number)) |
| 428 | 717 { |
| 444 | 718 IN_FLOAT (number = make_float (fabs (XFLOAT_DATA (number))), |
| 719 "abs", number); | |
| 720 return number; | |
| 428 | 721 } |
| 722 | |
| 444 | 723 if (INTP (number)) |
| 1983 | 724 #ifdef HAVE_BIGNUM |
| 725 /* The most negative Lisp fixnum will overflow */ | |
| 726 return (XINT (number) >= 0) ? number : make_integer (- XINT (number)); | |
| 727 #else | |
| 444 | 728 return (XINT (number) >= 0) ? number : make_int (- XINT (number)); |
| 1983 | 729 #endif |
| 730 | |
| 731 #ifdef HAVE_BIGNUM | |
| 732 if (BIGNUMP (number)) | |
| 733 { | |
| 734 if (bignum_sign (XBIGNUM_DATA (number)) >= 0) | |
| 735 return number; | |
| 736 bignum_abs (scratch_bignum, XBIGNUM_DATA (number)); | |
| 737 return make_bignum_bg (scratch_bignum); | |
| 738 } | |
| 739 #endif | |
| 740 | |
| 741 #ifdef HAVE_RATIO | |
| 742 if (RATIOP (number)) | |
| 743 { | |
| 744 if (ratio_sign (XRATIO_DATA (number)) >= 0) | |
| 745 return number; | |
| 746 ratio_abs (scratch_ratio, XRATIO_DATA (number)); | |
| 747 return make_ratio_rt (scratch_ratio); | |
| 748 } | |
| 749 #endif | |
| 750 | |
| 751 #ifdef HAVE_BIGFLOAT | |
| 752 if (BIGFLOATP (number)) | |
| 753 { | |
| 754 if (bigfloat_sign (XBIGFLOAT_DATA (number)) >= 0) | |
| 755 return number; | |
| 756 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 757 bigfloat_abs (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 758 return make_bigfloat_bf (scratch_bigfloat); | |
| 759 } | |
| 760 #endif | |
| 428 | 761 |
| 444 | 762 return Fabs (wrong_type_argument (Qnumberp, number)); |
| 428 | 763 } |
| 764 | |
| 765 DEFUN ("float", Ffloat, 1, 1, 0, /* | |
| 444 | 766 Return the floating point number numerically equal to NUMBER. |
| 428 | 767 */ |
| 444 | 768 (number)) |
| 428 | 769 { |
| 444 | 770 if (INTP (number)) |
| 771 return make_float ((double) XINT (number)); | |
| 428 | 772 |
| 1983 | 773 #ifdef HAVE_BIGNUM |
|
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774 if (BIGNUMP (number)) |
| 1983 | 775 { |
| 776 #ifdef HAVE_BIGFLOAT | |
| 777 if (ZEROP (Vdefault_float_precision)) | |
| 778 #endif | |
| 779 return make_float (bignum_to_double (XBIGNUM_DATA (number))); | |
| 780 #ifdef HAVE_BIGFLOAT | |
| 781 else | |
| 782 { | |
| 783 bigfloat_set_prec (scratch_bigfloat, bigfloat_get_default_prec ()); | |
| 784 bigfloat_set_bignum (scratch_bigfloat, XBIGNUM_DATA (number)); | |
| 785 return make_bigfloat_bf (scratch_bigfloat); | |
| 786 } | |
| 787 #endif /* HAVE_BIGFLOAT */ | |
| 788 } | |
| 789 #endif /* HAVE_BIGNUM */ | |
| 790 | |
| 791 #ifdef HAVE_RATIO | |
| 792 if (RATIOP (number)) | |
| 2092 | 793 return make_float (ratio_to_double (XRATIO_DATA (number))); |
| 1983 | 794 #endif |
| 795 | |
| 444 | 796 if (FLOATP (number)) /* give 'em the same float back */ |
| 797 return number; | |
| 428 | 798 |
| 444 | 799 return Ffloat (wrong_type_argument (Qnumberp, number)); |
| 428 | 800 } |
| 801 | |
| 802 DEFUN ("logb", Flogb, 1, 1, 0, /* | |
| 444 | 803 Return largest integer <= the base 2 log of the magnitude of NUMBER. |
| 428 | 804 This is the same as the exponent of a float. |
| 805 */ | |
| 444 | 806 (number)) |
| 428 | 807 { |
| 444 | 808 double f = extract_float (number); |
| 428 | 809 |
| 810 if (f == 0.0) | |
| 2039 | 811 return make_int (EMACS_INT_MIN); |
| 428 | 812 #ifdef HAVE_LOGB |
| 813 { | |
| 814 Lisp_Object val; | |
| 444 | 815 IN_FLOAT (val = make_int ((EMACS_INT) logb (f)), "logb", number); |
| 434 | 816 return val; |
| 428 | 817 } |
| 818 #else | |
| 819 #ifdef HAVE_FREXP | |
| 820 { | |
| 821 int exqp; | |
| 444 | 822 IN_FLOAT (frexp (f, &exqp), "logb", number); |
| 434 | 823 return make_int (exqp - 1); |
| 428 | 824 } |
| 825 #else | |
| 826 { | |
| 827 int i; | |
| 828 double d; | |
| 829 EMACS_INT val; | |
| 830 if (f < 0.0) | |
| 831 f = -f; | |
| 832 val = -1; | |
| 833 while (f < 0.5) | |
| 834 { | |
| 835 for (i = 1, d = 0.5; d * d >= f; i += i) | |
| 836 d *= d; | |
| 837 f /= d; | |
| 838 val -= i; | |
| 839 } | |
| 840 while (f >= 1.0) | |
| 841 { | |
| 842 for (i = 1, d = 2.0; d * d <= f; i += i) | |
| 843 d *= d; | |
| 844 f /= d; | |
| 845 val += i; | |
| 846 } | |
| 434 | 847 return make_int (val); |
| 428 | 848 } |
| 849 #endif /* ! HAVE_FREXP */ | |
| 850 #endif /* ! HAVE_LOGB */ | |
| 851 } | |
| 852 | |
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853 #ifdef WITH_NUMBER_TYPES |
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854 #define ROUNDING_CONVERT(conversion, return_float) \ |
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855 CONVERT_WITH_NUMBER_TYPES(conversion, return_float) |
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856 #else |
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857 #define ROUNDING_CONVERT(conversion, return_float) \ |
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858 CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) |
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859 #endif |
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860 |
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861 #define CONVERT_WITH_NUMBER_TYPES(conversion, return_float) \ |
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862 if (!NILP (divisor)) \ |
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863 { \ |
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864 switch (promote_args (&number, &divisor)) \ |
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865 { \ |
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866 case FIXNUM_T: \ |
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867 return conversion##_two_fixnum (number, divisor, \ |
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868 return_float); \ |
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869 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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870 BIGNUM, \ |
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871 return_float); \ |
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872 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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873 RATIO, \ |
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874 return_float); \ |
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875 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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876 BIGFLOAT, \ |
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877 return_float); \ |
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878 default: /* FLOAT_T */ \ |
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879 return conversion##_two_float (number,divisor, \ |
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880 return_float); \ |
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881 } \ |
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882 } \ |
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883 \ |
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884 /* Try this first, the arg is probably a float: */ \ |
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885 if (FLOATP (number)) \ |
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886 return conversion##_one_float (number, return_float); \ |
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887 \ |
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888 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
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889 RATIO, return_float); \ |
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890 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
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891 BIGFLOAT, return_float); \ |
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892 return conversion##_one_mundane_arg (number, divisor, \ |
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893 return_float) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
894 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
895 #define CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) \ |
|
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|
896 if (!NILP (divisor)) \ |
|
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|
897 { \ |
|
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|
898 /* The promote_args call if number types are available \ |
|
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|
899 does these conversions, we do them too for symmetry: */\ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
900 if (CHARP (number)) \ |
|
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|
901 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
902 number = make_int (XCHAR (number)); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
903 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
904 else if (MARKERP (number)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
905 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
906 number = make_int (marker_position (number)); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
907 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
908 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
909 if (CHARP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
910 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
911 divisor = make_int (XCHAR (divisor)); \ |
|
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|
912 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
913 else if (MARKERP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
914 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
915 divisor = make_int (marker_position (divisor)); \ |
|
b5e1d4f6b66f
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|
916 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
917 \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
918 CHECK_INT_OR_FLOAT (divisor); \ |
|
b5e1d4f6b66f
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|
919 if (INTP (number) && INTP (divisor)) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
920 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
921 return conversion##_two_fixnum (number, divisor, \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
922 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
923 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
924 else \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
925 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
926 return conversion##_two_float (number, divisor, \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
927 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
928 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
929 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
930 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
931 /* Try this first, the arg is probably a float: */ \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
932 if (FLOATP (number)) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
933 return conversion##_one_float (number, return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
934 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
935 return conversion##_one_mundane_arg (number, divisor, \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
936 return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
937 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
938 #ifdef WITH_NUMBER_TYPES |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
939 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
940 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
941 #define MAYBE_TWO_ARGS_BIGNUM(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
942 case BIGNUM_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
943 return conversion##_two_bignum (number, divisor, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
944 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
945 #define MAYBE_ONE_ARG_BIGNUM(converse, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
946 if (BIGNUM_P (number)) \ |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
947 return conversion##_one_bignum (number, divisor, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
948 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
949 #define MAYBE_TWO_ARGS_BIGNUM(conversion, return_float) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
950 #define MAYBE_ONE_ARG_BIGNUM(converse, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
951 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
952 |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
953 #ifdef HAVE_RATIO |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
954 #define MAYBE_TWO_ARGS_RATIO(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
955 case RATIO_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
956 return conversion##_two_ratio (number, divisor, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
957 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
958 #define MAYBE_ONE_ARG_RATIO(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
959 if (RATIOP (number)) \ |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
960 return conversion##_one_ratio (number, divisor, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
961 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
962 #define MAYBE_TWO_ARGS_RATIO(conversion, return_float) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
963 #define MAYBE_ONE_ARG_RATIO(converse, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
964 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
965 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
966 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
967 #define MAYBE_TWO_ARGS_BIGFLOAT(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
968 case BIGFLOAT_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
969 return conversion##_two_bigfloat (number, divisor, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
970 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
971 #define MAYBE_ONE_ARG_BIGFLOAT(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
972 if (BIGFLOATP (number)) \ |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
973 return conversion##_one_bigfloat (number, divisor, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
974 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
975 #define MAYBE_TWO_ARGS_BIGFLOAT(conversion, return_float) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
976 #define MAYBE_ONE_ARG_BIGFLOAT(converse, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
977 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
978 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
979 #define MAYBE_TWO_ARGS_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
980 MAYBE_TWO_ARGS_##upcase(convers, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
981 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
982 #define MAYBE_ONE_ARG_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
983 MAYBE_ONE_ARG_##upcase(convers, return_float) |
|
b5e1d4f6b66f
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984 |
|
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985 #endif /* WITH_NUMBER_TYPES */ |
|
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986 |
|
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987 #define MAYBE_EFF(str) (return_float ? "f" str : str) |
|
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988 |
|
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989 /* The WITH_NUMBER_TYPES code calls promote_args, which accepts chars and |
|
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990 markers as equivalent to ints. This block does the same for |
|
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991 single-argument calls. */ |
|
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992 #define MAYBE_CHAR_OR_MARKER(conversion) do { \ |
|
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993 if (CHARP (number)) \ |
|
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994 { \ |
|
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995 return conversion##_one_mundane_arg (make_int (XCHAR (number)), \ |
|
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996 divisor, return_float); \ |
|
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997 } \ |
|
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998 \ |
|
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999 if (MARKERP (number)) \ |
|
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1000 { \ |
|
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1001 return conversion##_one_mundane_arg (make_int \ |
|
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1002 (marker_position(number)), \ |
|
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1003 divisor, return_float); \ |
|
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1004 } \ |
|
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1005 } while (0) |
|
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1006 |
|
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1007 |
|
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1008 /* The guts of the implementations of the various rounding functions: */ |
|
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1009 |
|
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1010 static Lisp_Object |
|
b5e1d4f6b66f
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1011 ceiling_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
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|
1012 int return_float) |
| 428 | 1013 { |
|
4678
b5e1d4f6b66f
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1014 EMACS_INT i1 = XREALINT (number); |
|
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|
1015 EMACS_INT i2 = XREALINT (divisor); |
|
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|
1016 EMACS_INT i3 = 0, i4 = 0; |
|
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|
1017 |
|
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|
1018 if (i2 == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1019 return arith_error2 ("ceiling", number, divisor); |
|
4678
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|
1020 |
|
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|
1021 /* With C89's integer /, the result is implementation-defined if either |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1022 operand is negative, so use only nonnegative operands. Here we do |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
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|
1023 basically the opposite of what floor_two_fixnum does, we add one in the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1024 non-negative case: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1025 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1026 /* Make sure we use the same signs for the modulus calculation as for the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1027 quotient calculation: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1028 if (i2 < 0) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1029 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1030 if (i1 <= 0) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1031 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1032 i3 = -i1 / -i2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1033 /* Quotient is positive; add one to give the figure for |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1034 ceiling. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1035 if (0 != (-i1 % -i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1036 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1037 ++i3; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1038 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1039 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1040 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1041 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1042 /* Quotient is negative; no need to add one. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1043 i3 = -(i1 / -i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1044 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1045 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1046 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1047 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1048 if (i1 < 0) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1049 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1050 /* Quotient is negative; no need to add one. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1051 i3 = -(-i1 / i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1052 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1053 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1054 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1055 i3 = i1 / i2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1056 /* Quotient is positive; add one to give the figure for |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1057 ceiling. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1058 if (0 != (i1 % i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1059 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1060 ++i3; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1061 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1062 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1063 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1064 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1065 i4 = i1 - (i3 * i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1066 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1067 if (!return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1068 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1069 return values2 (make_int (i3), make_int (i4)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1070 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1071 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1072 return values2 (make_float ((double)i3), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1073 make_int (i4)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1074 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1075 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1076 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1077 static Lisp_Object |
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1078 ceiling_two_bignum (Lisp_Object number, Lisp_Object divisor, |
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1079 int return_float) |
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1080 { |
|
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1081 Lisp_Object res0, res1; |
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1082 |
|
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1083 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) |
|
4717
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|
1084 return arith_error2 ("ceiling", number, divisor); |
|
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1085 |
|
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|
1086 bignum_ceil (scratch_bignum, XBIGNUM_DATA (number), XBIGNUM_DATA (divisor)); |
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1087 |
|
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1088 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
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1089 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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1090 |
|
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1091 if (bignum_divisible_p (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor))) |
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1092 { |
|
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1093 res1 = Qzero; |
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1094 } |
|
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1095 else |
| 428 | 1096 { |
|
4678
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1097 bignum_mul (scratch_bignum, scratch_bignum, XBIGNUM_DATA (divisor)); |
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1098 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum); |
|
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1099 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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1100 } |
|
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1101 |
|
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1102 return values2 (res0, res1); |
|
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1103 } |
|
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1104 #endif /* HAVE_BIGNUM */ |
|
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1105 |
|
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|
1106 #ifdef HAVE_RATIO |
|
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|
1107 static Lisp_Object |
|
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|
1108 ceiling_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
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|
1109 int return_float) |
|
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|
1110 { |
|
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|
1111 Lisp_Object res0, res1; |
|
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|
1112 |
|
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|
1113 if (ratio_sign (XRATIO_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
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Jerry James <james@xemacs.org>
parents:
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changeset
|
1114 return arith_error2 ("ceiling", number, divisor); |
|
4678
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|
1115 |
|
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|
1116 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
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|
1117 |
|
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|
1118 bignum_ceil (scratch_bignum, ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
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changeset
|
1119 ratio_denominator (scratch_ratio)); |
|
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|
1120 |
|
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|
1121 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1122 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1123 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1124 if (bignum_divisible_p (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1125 ratio_denominator (scratch_ratio))) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1126 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1127 res1 = Qzero; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1128 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1129 else |
|
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changeset
|
1130 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1131 ratio_set_bignum (scratch_ratio, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1132 ratio_mul (scratch_ratio2, scratch_ratio, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1133 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1134 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1135 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1136 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1137 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1138 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1139 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1140 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1141 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1142 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1143 ceiling_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1144 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1145 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1146 Lisp_Object res0; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1147 |
|
b5e1d4f6b66f
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diff
changeset
|
1148 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1149 return arith_error2 ("ceiling", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1150 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1151 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1152 XBIGFLOAT_GET_PREC (divisor))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1153 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1154 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1155 bigfloat_ceil (scratch_bigfloat, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1156 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1157 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1158 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1159 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
b5e1d4f6b66f
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changeset
|
1160 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1161 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1162 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1163 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
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changeset
|
1164 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1165 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1166 #else |
|
b5e1d4f6b66f
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|
1167 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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1168 #endif /* HAVE_BIGNUM */ |
|
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1169 } |
|
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1170 |
|
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|
1171 bigfloat_mul (scratch_bigfloat, scratch_bigfloat, XBIGFLOAT_DATA (divisor)); |
|
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|
1172 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
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|
1173 return values2 (res0, |
|
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|
1174 Fcanonicalize_number (make_bigfloat_bf (scratch_bigfloat))); |
|
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1175 } |
|
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1176 #endif /* HAVE_BIGFLOAT */ |
|
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1177 |
|
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|
1178 #ifdef HAVE_RATIO |
|
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|
1179 static Lisp_Object |
|
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|
1180 ceiling_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1181 int return_float) |
|
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|
1182 { |
|
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1183 Lisp_Object res0, res1; |
|
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1184 |
|
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|
1185 bignum_ceil (scratch_bignum, XRATIO_NUMERATOR (number), |
|
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|
1186 XRATIO_DENOMINATOR (number)); |
|
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1187 |
|
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1188 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
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|
1189 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1190 |
|
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|
1191 if (bignum_divisible_p (XRATIO_NUMERATOR (number), |
|
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|
1192 XRATIO_DENOMINATOR (number))) |
|
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|
1193 { |
|
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|
1194 res1 = Qzero; |
|
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|
1195 } |
|
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|
1196 else |
|
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|
1197 { |
|
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|
1198 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1199 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
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|
1200 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1201 } |
| 1202 | |
|
4678
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|
1203 return values2 (res0, res1); |
|
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|
1204 } |
|
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|
1205 #endif /* HAVE_RATIO */ |
|
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|
1206 |
|
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|
1207 #ifdef HAVE_BIGFLOAT |
|
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|
1208 static Lisp_Object |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1209 ceiling_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1210 int return_float) |
|
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|
1211 { |
|
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|
1212 Lisp_Object res0, res1; |
|
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|
1213 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1214 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1215 bigfloat_ceil (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1216 |
|
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|
1217 if (return_float) |
|
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|
1218 { |
|
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|
1219 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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|
1220 } |
|
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|
1221 else |
|
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|
1222 { |
|
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|
1223 #ifdef HAVE_BIGNUM |
|
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|
1224 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
b5e1d4f6b66f
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changeset
|
1225 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
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|
1226 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1227 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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changeset
|
1228 #endif /* HAVE_BIGNUM */ |
|
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|
1229 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1230 |
|
b5e1d4f6b66f
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changeset
|
1231 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
b5e1d4f6b66f
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changeset
|
1232 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1233 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
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|
1234 return values2 (res0, res1); |
|
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|
1235 } |
|
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changeset
|
1236 #endif /* HAVE_BIGFLOAT */ |
|
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changeset
|
1237 |
|
b5e1d4f6b66f
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changeset
|
1238 static Lisp_Object |
|
b5e1d4f6b66f
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changeset
|
1239 ceiling_two_float (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1240 int return_float) |
|
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|
1241 { |
|
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changeset
|
1242 double f1 = extract_float (number); |
|
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|
1243 double f2 = extract_float (divisor); |
|
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|
1244 double f0, remain; |
|
b5e1d4f6b66f
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changeset
|
1245 Lisp_Object res0; |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
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changeset
|
1246 |
|
4678
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|
1247 if (f2 == 0.0) |
|
4717
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Jerry James <james@xemacs.org>
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changeset
|
1248 return arith_error2 ("ceiling", number, divisor); |
|
fcc7e89d5e68
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Jerry James <james@xemacs.org>
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diff
changeset
|
1249 |
|
4678
b5e1d4f6b66f
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changeset
|
1250 IN_FLOAT2 (f0 = ceil (f1 / f2), MAYBE_EFF("ceiling"), number, divisor); |
|
b5e1d4f6b66f
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changeset
|
1251 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF("ceiling"), number, divisor); |
|
b5e1d4f6b66f
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|
1252 |
|
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changeset
|
1253 if (return_float) |
|
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changeset
|
1254 { |
|
b5e1d4f6b66f
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changeset
|
1255 res0 = make_float(f0); |
|
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|
1256 } |
|
b5e1d4f6b66f
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changeset
|
1257 else |
|
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|
1258 { |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
1259 res0 = float_to_int (f0, MAYBE_EFF("ceiling"), number, divisor); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1260 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1261 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1262 return values2 (res0, make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1263 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1264 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1265 static Lisp_Object |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1266 ceiling_one_float (Lisp_Object number, int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1267 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1268 double d, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1269 Lisp_Object res0; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1270 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
1271 IN_FLOAT ((d = ceil (XFLOAT_DATA (number))), MAYBE_EFF("ceiling"), number); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1272 IN_FLOAT ((remain = XFLOAT_DATA (number) - d), MAYBE_EFF("ceiling"), number); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1273 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1274 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1275 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1276 res0 = make_float (d); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1277 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1278 else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1279 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1280 res0 = float_to_int (d, MAYBE_EFF("ceiling"), number, Qunbound); |
|
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|
1281 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1282 return values2 (res0, make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1283 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1284 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1285 EXFUN (Fceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1286 EXFUN (Ffceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1287 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1288 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1289 ceiling_one_mundane_arg (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1290 int return_float) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1291 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1292 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1293 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1294 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1295 if (INTP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1296 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1297 return values2 (make_float ((double) XINT (number)), Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1298 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1299 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1300 else if (BIGNUMP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1301 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
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4678
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changeset
|
1302 return values2 (make_float |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1303 (bignum_to_double (XBIGNUM_DATA (number))), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
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|
1304 Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1305 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1306 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1307 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1308 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1309 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1310 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1311 if (INTEGERP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1312 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1313 if (INTP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1314 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1315 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1316 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1317 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1318 } |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
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diff
changeset
|
1319 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1320 MAYBE_CHAR_OR_MARKER (ceiling); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1321 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1322 return Ffceiling (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1323 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1324 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1325 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1326 floor_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1327 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1328 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1329 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1330 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
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Aidan Kehoe <kehoea@parhasard.net>
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|
1331 EMACS_INT i3 = 0, i4 = 0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1332 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1333 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1334 if (i2 == 0) |
|
4717
fcc7e89d5e68
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Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1335 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1336 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1337 /* With C89's integer /, the result is implementation-defined if either |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1338 operand is negative, so use only nonnegative operands. Notice also that |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1339 we're forcing the quotient of any negative numbers towards minus |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1340 infinity. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1341 i3 = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1342 ? (i1 <= 0 ? -i1 / -i2 : -1 - ((i1 - 1) / -i2)) |
|
b5e1d4f6b66f
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2286
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changeset
|
1343 : (i1 < 0 ? -1 - ((-1 - i1) / i2) : i1 / i2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1344 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1345 i4 = i1 - (i3 * i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1346 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1347 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1348 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1349 res0 = make_float ((double)i3); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1350 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1351 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1352 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1353 res0 = make_int (i3); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1354 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1355 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1356 return values2 (res0, make_int (i4)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1357 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1358 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1359 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1360 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1361 floor_two_bignum (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1362 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1363 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1364 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1365 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1366 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1367 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1368 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1369 bignum_floor (scratch_bignum, XBIGNUM_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1370 XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1371 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1372 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1373 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1374 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1375 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1376 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1377 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1378 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1379 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1380 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1381 if (bignum_divisible_p (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1382 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1383 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1384 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1385 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1386 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1387 bignum_mul (scratch_bignum, scratch_bignum, XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1388 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1389 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1390 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1391 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1392 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1393 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1394 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1395 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1396 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1397 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1398 floor_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1399 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1400 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1401 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1402 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1403 if (ratio_sign (XRATIO_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1404 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1405 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1406 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1407 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1408 bignum_floor (scratch_bignum, ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1409 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1410 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1411 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1412 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1413 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1414 if (bignum_divisible_p (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1415 ratio_denominator (scratch_ratio))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1416 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1417 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1418 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1419 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1420 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1421 ratio_set_bignum (scratch_ratio, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1422 ratio_mul (scratch_ratio, scratch_ratio, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1423 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1424 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1425 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1426 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1427 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1428 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1429 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1430 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1431 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1432 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1433 floor_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1434 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1435 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1436 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1437 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1438 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1439 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1440 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1441 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (number), |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1442 XBIGFLOAT_GET_PREC (divisor))); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1443 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1444 XBIGFLOAT_DATA (divisor)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1445 bigfloat_floor (scratch_bigfloat, scratch_bigfloat); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1446 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1447 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1448 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1449 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1450 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1451 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1452 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1453 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1454 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1455 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1456 #else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1457 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1458 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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|
1459 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1460 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1461 bigfloat_mul (scratch_bigfloat2, scratch_bigfloat, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
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|
1462 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1463 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), scratch_bigfloat2); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1464 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
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|
1465 return values2 (res0, make_bigfloat_bf (scratch_bigfloat)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1466 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1467 #endif /* HAVE_BIGFLOAT */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1468 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1469 #ifdef HAVE_RATIO |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1470 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1471 floor_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1472 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1473 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1474 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1475 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1476 bignum_floor (scratch_bignum, XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1477 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1478 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1479 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1480 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1481 |
|
b5e1d4f6b66f
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parents:
2286
diff
changeset
|
1482 if (bignum_divisible_p (XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1483 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1484 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1485 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1486 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1487 else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1488 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1489 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1490 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1491 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1492 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1493 |
|
b5e1d4f6b66f
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changeset
|
1494 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1495 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1496 #endif /* HAVE_RATIO */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1497 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1498 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1499 static Lisp_Object |
|
b5e1d4f6b66f
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diff
changeset
|
1500 floor_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1501 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1502 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
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changeset
|
1503 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1504 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1505 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1506 bigfloat_floor (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1507 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1508 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1509 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1510 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1511 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1512 else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1513 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1514 #ifdef HAVE_BIGNUM |
|
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changeset
|
1515 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1516 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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changeset
|
1517 #else |
|
b5e1d4f6b66f
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changeset
|
1518 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1519 #endif /* HAVE_BIGNUM */ |
|
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changeset
|
1520 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1521 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1522 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1523 return values2 (res0, make_bigfloat_bf (scratch_bigfloat2)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1524 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1525 #endif /* HAVE_BIGFLOAT */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1526 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1527 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1528 floor_two_float (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1529 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1530 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1531 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1532 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1533 double f0, remain; |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1534 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1535 if (f2 == 0.0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1536 return arith_error2 ("floor", number, divisor); |
|
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1537 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1538 IN_FLOAT2 (f0 = floor (f1 / f2), MAYBE_EFF ("floor"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1539 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF ("floor"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1540 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1541 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1542 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1543 return values2 (make_float (f0), make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1544 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1545 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1546 return values2 (float_to_int (f0, MAYBE_EFF ("floor"), number, divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1547 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1548 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1549 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1550 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1551 floor_one_float (Lisp_Object number, int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1552 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1553 double d, d1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1554 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1555 IN_FLOAT ((d = floor (XFLOAT_DATA (number))), MAYBE_EFF ("floor"), number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1556 IN_FLOAT ((d1 = XFLOAT_DATA (number) - d), MAYBE_EFF ("floor"), number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1557 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1558 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1559 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1560 return values2 (make_float (d), make_float (d1)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1561 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1562 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1563 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1564 return values2 (float_to_int (d, MAYBE_EFF ("floor"), number, Qunbound), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1565 make_float (d1)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1566 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1567 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1568 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1569 EXFUN (Ffloor, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1570 EXFUN (Fffloor, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1571 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1572 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1573 floor_one_mundane_arg (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1574 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1575 { |
| 1983 | 1576 #ifdef HAVE_BIGNUM |
| 1577 if (INTEGERP (number)) | |
| 1578 #else | |
| 444 | 1579 if (INTP (number)) |
| 1983 | 1580 #endif |
| 1581 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1582 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1583 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1584 return values2 (make_float (extract_float (number)), Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1585 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1586 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1587 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1588 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1589 } |
| 1983 | 1590 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1591 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1592 MAYBE_CHAR_OR_MARKER (floor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1593 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1594 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1595 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1596 return Fffloor (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1597 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1598 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1599 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1600 return Ffloor (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1601 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1602 } |
| 1983 | 1603 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1604 /* Algorithm taken from cl-extra.el, now to be found as cl-round in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1605 tests/automated/lisp-tests.el. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1606 static Lisp_Object |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1607 round_two_fixnum (Lisp_Object number, Lisp_Object divisor, int return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1608 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1609 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1610 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1611 EMACS_INT i0, hi2, flooring, floored, flsecond; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1612 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1613 if (i2 == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1614 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1615 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1616 hi2 = i2 < 0 ? -( -i2 / 2) : i2 / 2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1617 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1618 flooring = hi2 + i1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1619 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1620 floored = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1621 ? (flooring <= 0 ? -flooring / -i2 : -1 - ((flooring - 1) / -i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1622 : (flooring < 0 ? -1 - ((-1 - flooring) / i2) : flooring / i2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1623 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1624 flsecond = flooring - (floored * i2); |
| 1983 | 1625 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1626 if (0 == flsecond |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1627 && (i2 == (hi2 + hi2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1628 && (0 != (floored % 2))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1629 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1630 i0 = floored - 1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1631 return values2 (return_float ? make_float ((double)i0) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1632 make_int (i0), make_int (hi2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1633 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1634 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1635 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1636 return values2 (return_float ? make_float ((double)floored) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1637 make_int (floored), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1638 make_int (flsecond - hi2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1639 } |
| 428 | 1640 } |
| 1641 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1642 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1643 static void |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1644 round_two_bignum_1 (bignum number, bignum divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1645 Lisp_Object *res, Lisp_Object *remain) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1646 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1647 bignum flooring, floored, hi2, flsecond; |
| 428 | 1648 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1649 if (bignum_divisible_p (number, divisor)) |
| 1983 | 1650 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1651 bignum_div (scratch_bignum, number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1652 *res = make_bignum_bg (scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1653 *remain = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1654 return; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1655 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1656 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1657 bignum_set_long (scratch_bignum, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1658 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1659 bignum_div (scratch_bignum2, divisor, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1660 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1661 bignum_init (hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1662 bignum_set (hi2, scratch_bignum2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1663 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1664 bignum_add (scratch_bignum, scratch_bignum2, number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1665 bignum_init (flooring); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1666 bignum_set (flooring, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1667 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1668 bignum_floor (scratch_bignum, flooring, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1669 bignum_init (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1670 bignum_set (floored, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1671 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1672 bignum_mul (scratch_bignum2, scratch_bignum, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1673 bignum_sub (scratch_bignum, flooring, scratch_bignum2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1674 bignum_init (flsecond); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1675 bignum_set (flsecond, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1676 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1677 bignum_set_long (scratch_bignum, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1678 bignum_mul (scratch_bignum2, scratch_bignum, hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1679 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1680 if (bignum_sign (flsecond) == 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1681 && bignum_eql (divisor, scratch_bignum2) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1682 && (1 == bignum_testbit (floored, 0))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1683 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1684 bignum_set_long (scratch_bignum, 1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1685 bignum_sub (floored, floored, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1686 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1687 *remain = make_bignum_bg (hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1688 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1689 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1690 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1691 bignum_sub (scratch_bignum, flsecond, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1692 hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1693 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1694 *remain = make_bignum_bg (scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1695 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1696 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1697 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1698 static Lisp_Object |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1699 round_two_bignum (Lisp_Object number, Lisp_Object divisor, int return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1700 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1701 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1702 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1703 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1704 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1705 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1706 round_two_bignum_1 (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1707 &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1708 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1709 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1710 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1711 res0 = make_float (bignum_to_double (XBIGNUM_DATA (res0))); |
| 1983 | 1712 } |
| 1713 else | |
| 1714 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1715 res0 = Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1716 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1717 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1718 return values2 (res0, Fcanonicalize_number (res1)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1719 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1720 #endif /* HAVE_BIGNUM */ |
| 1983 | 1721 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1722 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1723 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1724 round_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
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changeset
|
1725 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1726 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1727 Lisp_Object res0, res1; |
| 1983 | 1728 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1729 if (ratio_sign (XRATIO_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1730 return arith_error2 ("round", number, divisor); |
| 1983 | 1731 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1732 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1733 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1734 round_two_bignum_1 (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1735 ratio_denominator (scratch_ratio), &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1736 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1737 if (!ZEROP (res1)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1738 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1739 /* The numerator and denominator don't round exactly, calculate a |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1740 ratio remainder: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1741 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1742 ratio_mul (scratch_ratio, scratch_ratio2, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1743 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1744 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1745 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1746 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1747 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1748 res0 = return_float ? |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1749 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1750 Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1751 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1752 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1753 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1754 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1755 |
| 1983 | 1756 #ifdef HAVE_BIGFLOAT |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1757 /* This is the logic of emacs_rint above, no more and no less. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1758 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1759 round_one_bigfloat_1 (bigfloat number) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1760 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1761 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1762 unsigned long prec = bigfloat_get_prec (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1763 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1764 assert ((bigfloat *)(&number) != (bigfloat *)&scratch_bigfloat |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1765 && (bigfloat *)(&number) != (bigfloat *)(&scratch_bigfloat2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1766 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1767 bigfloat_set_prec (scratch_bigfloat, prec); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1768 bigfloat_set_prec (scratch_bigfloat2, prec); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1769 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1770 bigfloat_set_double (scratch_bigfloat, 0.5); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1771 bigfloat_add (scratch_bigfloat2, scratch_bigfloat, number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1772 bigfloat_floor (scratch_bigfloat, scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1773 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1774 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1775 bigfloat_sub (scratch_bigfloat2, scratch_bigfloat, number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1776 bigfloat_abs (scratch_bigfloat, scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1777 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1778 bigfloat_set_double (scratch_bigfloat2, 0.5); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1779 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1780 do { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1781 if (!bigfloat_ge (scratch_bigfloat, scratch_bigfloat2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1782 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1783 break; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1784 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1785 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1786 if (!bigfloat_gt (scratch_bigfloat, scratch_bigfloat2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1787 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1788 bigfloat_set_double (scratch_bigfloat2, 2.0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1789 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (res0), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1790 scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1791 bigfloat_floor (scratch_bigfloat2, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1792 bigfloat_set_double (scratch_bigfloat, 2.0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1793 bigfloat_mul (scratch_bigfloat2, scratch_bigfloat2, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1794 scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1795 if (bigfloat_eql (scratch_bigfloat2, XBIGFLOAT_DATA (res0))) |
| 1995 | 1796 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1797 break; |
| 1995 | 1798 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1799 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1800 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1801 if (bigfloat_lt (XBIGFLOAT_DATA (res0), number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1802 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1803 bigfloat_set_double (scratch_bigfloat2, 1.0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1804 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1805 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1806 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1807 bigfloat_set_double (scratch_bigfloat2, -1.0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1808 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1809 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1810 bigfloat_set (scratch_bigfloat, XBIGFLOAT_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1811 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1812 bigfloat_add (XBIGFLOAT_DATA (res0), scratch_bigfloat2, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1813 scratch_bigfloat); |
| 428 | 1814 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1815 } while (0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1816 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1817 return res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1818 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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1819 |
|
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|
1820 static Lisp_Object |
|
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1821 round_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
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1822 int return_float) |
|
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1823 { |
|
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1824 Lisp_Object res0, res1; |
|
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1825 bigfloat divided; |
|
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1826 |
|
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1827 unsigned long prec = max (XBIGFLOAT_GET_PREC (number), |
|
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1828 XBIGFLOAT_GET_PREC (divisor)); |
|
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1829 |
|
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1830 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
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1831 return arith_error2 ("round", number, divisor); |
| 428 | 1832 |
|
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|
1833 bigfloat_init (divided); |
|
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1834 bigfloat_set_prec (divided, prec); |
|
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1835 |
|
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1836 bigfloat_div (divided, XBIGFLOAT_DATA (number), XBIGFLOAT_DATA (divisor)); |
|
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1837 |
|
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|
1838 res0 = round_one_bigfloat_1 (divided); |
|
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1839 |
|
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1840 bigfloat_set_prec (scratch_bigfloat, prec); |
|
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|
1841 bigfloat_set_prec (scratch_bigfloat2, prec); |
|
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1842 |
|
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1843 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (res0), |
|
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1844 XBIGFLOAT_DATA (divisor)); |
|
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1845 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), |
|
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|
1846 scratch_bigfloat); |
|
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|
1847 |
|
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|
1848 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
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1849 |
|
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|
1850 if (!return_float) |
| 428 | 1851 { |
|
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|
1852 #ifdef HAVE_BIGNUM |
|
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|
1853 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
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|
1854 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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1855 #else |
|
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1856 res0 = make_int ((EMACS_INT) bigfloat_to_long (XBIGFLOAT_DATA (res0))); |
|
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|
1857 #endif /* HAVE_BIGNUM */ |
|
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|
1858 } |
|
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1859 |
|
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|
1860 return values2 (res0, res1); |
|
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1861 } |
|
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|
1862 #endif /* HAVE_BIGFLOAT */ |
|
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|
1863 |
|
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|
1864 #ifdef HAVE_RATIO |
|
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|
1865 static Lisp_Object |
|
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1866 round_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1867 int return_float) |
|
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|
1868 { |
|
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|
1869 Lisp_Object res0, res1; |
|
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|
1870 |
|
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|
1871 round_two_bignum_1 (XRATIO_NUMERATOR (number), XRATIO_DENOMINATOR (number), |
|
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|
1872 &res0, &res1); |
|
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|
1873 |
|
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|
1874 if (!ZEROP (res1)) |
|
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|
1875 { |
|
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|
1876 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
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|
1877 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
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|
1878 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1879 } |
| 1880 | |
|
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|
1881 res0 = return_float ? |
|
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|
1882 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1883 Fcanonicalize_number (res0); |
|
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|
1884 |
|
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|
1885 return values2 (res0, res1); |
|
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|
1886 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1887 #endif /* HAVE_RATIO */ |
|
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|
1888 |
|
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|
1889 #ifdef HAVE_BIGFLOAT |
|
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|
1890 static Lisp_Object |
|
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|
1891 round_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
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|
1892 int return_float) |
|
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|
1893 { |
|
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|
1894 Lisp_Object res0 = round_one_bigfloat_1 (XBIGFLOAT_DATA (number)); |
|
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|
1895 Lisp_Object res1; |
|
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|
1896 |
|
4717
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parents:
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|
1897 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
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|
1898 XBIGFLOAT_DATA (res0)); |
|
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|
1899 |
|
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|
1900 res1 = make_bigfloat_bf (scratch_bigfloat); |
|
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|
1901 |
|
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|
1902 if (!return_float) |
|
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|
1903 { |
|
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|
1904 #ifdef HAVE_BIGNUM |
|
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|
1905 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
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|
1906 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1907 #else |
|
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|
1908 res0 = make_int ((EMACS_INT) bigfloat_to_long |
|
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|
1909 (XBIGFLOAT_DATA (res0))); |
|
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|
1910 #endif /* HAVE_BIGNUM */ |
|
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|
1911 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1912 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1913 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1914 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1915 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1916 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1917 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1918 round_two_float (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1919 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1920 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1921 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1922 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1923 double f0, remain; |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1924 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1925 if (f2 == 0.0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1926 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1927 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1928 IN_FLOAT2 ((f0 = emacs_rint (f1 / f2)), MAYBE_EFF ("round"), number, |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1929 divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1930 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF ("round"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1931 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1932 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1933 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1934 return values2 (make_float (f0), make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1935 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1936 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1937 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1938 return values2 (float_to_int (f0, MAYBE_EFF("round"), number, divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1939 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1940 } |
| 428 | 1941 } |
| 1942 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1943 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1944 round_one_float (Lisp_Object number, int return_float) |
| 428 | 1945 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1946 double d; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1947 /* Screw the prevailing rounding mode. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1948 IN_FLOAT ((d = emacs_rint (XFLOAT_DATA (number))), MAYBE_EFF ("round"), |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1949 number); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1950 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1951 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1952 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1953 return values2 (make_float (d), make_float (XFLOAT_DATA (number) - d)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1954 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1955 else |
| 428 | 1956 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1957 return values2 ((float_to_int (d, MAYBE_EFF ("round"), number, |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1958 Qunbound)), |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1959 make_float (XFLOAT_DATA (number) - d)); |
| 428 | 1960 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1961 } |
| 428 | 1962 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1963 EXFUN (Fround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1964 EXFUN (Ffround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1965 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1966 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1967 round_one_mundane_arg (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1968 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1969 { |
| 1983 | 1970 #ifdef HAVE_BIGNUM |
| 1971 if (INTEGERP (number)) | |
| 1972 #else | |
| 444 | 1973 if (INTP (number)) |
| 1983 | 1974 #endif |
| 1975 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1976 if (return_float) |
| 1983 | 1977 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1978 return values2 (make_float (extract_float (number)), Qzero); |
| 1983 | 1979 } |
| 1980 else | |
| 1981 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1982 return values2 (number, Qzero); |
| 1983 | 1983 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1984 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1985 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1986 MAYBE_CHAR_OR_MARKER (round); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1987 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1988 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1989 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1990 return Ffround (wrong_type_argument (Qnumberp, number), divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1991 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1992 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1993 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1994 return Fround (wrong_type_argument (Qnumberp, number), divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1995 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1996 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1997 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1998 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1999 truncate_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2000 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2001 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2002 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2003 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2004 EMACS_INT i0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2005 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2006 if (i2 == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2007 return arith_error2 ("truncate", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2008 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2009 /* We're truncating towards zero, so apart from avoiding the C89 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2010 implementation-defined behaviour with truncation and negative numbers, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2011 we don't need to do anything further: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2012 i0 = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2013 ? (i1 <= 0 ? -i1 / -i2 : -(i1 / -i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2014 : (i1 < 0 ? -(-i1 / i2) : i1 / i2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2015 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2016 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2017 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2018 return values2 (make_float ((double)i0), make_int (i1 - (i0 * i2))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2019 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2020 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2021 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2022 return values2 (make_int (i0), make_int (i1 - (i0 * i2))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2023 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2024 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2025 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2026 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2027 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2028 truncate_two_bignum (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2029 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2030 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2031 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2032 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2033 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2034 return arith_error2 ("truncate", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2035 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2036 bignum_div (scratch_bignum, XBIGNUM_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2037 XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2038 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2039 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2040 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2041 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2042 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2043 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2044 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2045 res0 = make_bignum_bg (scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2046 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2047 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2048 if (bignum_divisible_p (XBIGNUM_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2049 XBIGNUM_DATA (divisor))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2050 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2051 return values2 (Fcanonicalize_number (res0), Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2052 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2053 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2054 bignum_mul (scratch_bignum2, scratch_bignum, XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2055 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2056 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2057 return values2 (Fcanonicalize_number (res0), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2058 Fcanonicalize_number (make_bignum_bg (scratch_bignum))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2059 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2060 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2061 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2062 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2063 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2064 truncate_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2065 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2066 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2067 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2068 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2069 if (ratio_sign (XRATIO_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2070 return arith_error2 ("truncate", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2071 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2072 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2073 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2074 bignum_div (scratch_bignum, ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2075 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2076 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2077 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2078 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2079 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2080 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2081 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2082 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2083 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2084 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2085 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2086 if (bignum_divisible_p (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2087 ratio_denominator (scratch_ratio))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2088 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2089 return values2 (res0, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2090 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2091 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2092 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2093 ratio_mul (scratch_ratio, scratch_ratio2, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2094 ratio_sub (scratch_ratio2, XRATIO_DATA (number), scratch_ratio); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2095 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2096 return values2 (res0, Fcanonicalize_number (make_ratio_rt(scratch_ratio2))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2097 } |
| 1983 | 2098 #endif |
| 2099 | |
| 2100 #ifdef HAVE_BIGFLOAT | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2101 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2102 truncate_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2103 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2104 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2105 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2106 unsigned long prec = max (XBIGFLOAT_GET_PREC (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2107 XBIGFLOAT_GET_PREC (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2108 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2109 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2110 return arith_error2 ("truncate", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2111 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2112 bigfloat_set_prec (scratch_bigfloat, prec); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2113 bigfloat_set_prec (scratch_bigfloat2, prec); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2114 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2115 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2116 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2117 bigfloat_trunc (scratch_bigfloat, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2118 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2119 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2120 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2121 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2122 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2123 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2124 { |
| 1983 | 2125 #ifdef HAVE_BIGNUM |
| 2126 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2127 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
| 1983 | 2128 #else |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2129 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
| 1983 | 2130 #endif /* HAVE_BIGNUM */ |
| 2131 } | |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2132 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2133 bigfloat_mul (scratch_bigfloat2, scratch_bigfloat, XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2134 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2135 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2136 return values2 (res0, make_bigfloat_bf (scratch_bigfloat)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2137 } |
| 1983 | 2138 #endif /* HAVE_BIGFLOAT */ |
| 2139 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2140 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2141 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2142 truncate_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2143 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2144 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2145 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2146 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2147 if (ratio_sign (XRATIO_DATA (number)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2148 return Qzero; |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2149 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2150 bignum_div (scratch_bignum, XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2151 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2152 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2153 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2154 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2155 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2156 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2157 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2158 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2159 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2160 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2161 if (bignum_divisible_p (XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2162 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2163 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2164 return values2 (res0, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2165 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2166 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2167 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2168 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2169 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2170 return values2 (res0, Fcanonicalize_number (make_ratio_rt (scratch_ratio))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2171 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2172 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2173 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2174 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2175 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2176 truncate_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2177 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2178 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2179 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2180 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2181 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2182 bigfloat_set_prec (scratch_bigfloat2, XBIGFLOAT_GET_PREC (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2183 bigfloat_trunc (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2184 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2185 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2186 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2187 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2188 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2189 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2190 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2191 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2192 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2193 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2194 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2195 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2196 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2197 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2198 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2199 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2200 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2201 return |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2202 values2 (res0, |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2203 Fcanonicalize_number (make_bigfloat_bf (scratch_bigfloat2))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2204 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2205 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2206 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2207 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2208 truncate_two_float (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2209 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2210 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2211 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2212 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2213 double f0, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2214 Lisp_Object res0; |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2215 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2216 if (f2 == 0.0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2217 return arith_error2 ("truncate", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2218 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2219 res0 = float_to_int (f1 / f2, MAYBE_EFF ("truncate"), number, Qunbound); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2220 f0 = extract_float (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2221 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2222 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF ("truncate"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2223 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2224 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2225 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2226 res0 = make_float (f0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2227 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2228 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2229 return values2 (res0, make_float (remain)); |
| 428 | 2230 } |
| 2231 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2232 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2233 truncate_one_float (Lisp_Object number, int return_float) |
| 428 | 2234 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2235 Lisp_Object res0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2236 = float_to_int (XFLOAT_DATA (number), MAYBE_EFF ("truncate"), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2237 number, Qunbound); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2238 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2239 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2240 res0 = make_float ((double)XINT(res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2241 return values2 (res0, make_float ((XFLOAT_DATA (number) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2242 - XFLOAT_DATA (res0)))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2243 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2244 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2245 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2246 return values2 (res0, make_float (XFLOAT_DATA (number) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2247 - XREALINT (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2248 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2249 } |
| 428 | 2250 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2251 EXFUN (Fftruncate, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2252 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2253 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2254 truncate_one_mundane_arg (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2255 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2256 { |
| 1983 | 2257 #ifdef HAVE_BIGNUM |
| 2258 if (INTEGERP (number)) | |
| 2259 #else | |
| 444 | 2260 if (INTP (number)) |
| 1983 | 2261 #endif |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2262 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2263 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2264 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2265 return values2 (make_float (extract_float (number)), Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2266 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2267 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2268 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2269 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2270 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2271 } |
| 428 | 2272 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2273 MAYBE_CHAR_OR_MARKER (truncate); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2274 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2275 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2276 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2277 return Fftruncate (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2278 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2279 else |
| 1983 | 2280 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2281 return Ftruncate (wrong_type_argument (Qnumberp, number), divisor); |
| 1983 | 2282 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2283 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2284 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2285 /* Rounding functions that will not necessarily return floats: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2286 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2287 DEFUN ("ceiling", Fceiling, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2288 Return the smallest integer no less than NUMBER. (Round toward +inf.) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2289 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2290 With optional argument DIVISOR, return the smallest integer no less than |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2291 the quotient of NUMBER and DIVISOR. |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2292 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2293 This function returns multiple values; see `multiple-value-bind' and |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2294 `multiple-value-call'. The second returned value is the remainder in the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2295 calculation, which will be one minus the fractional part of NUMBER if DIVISOR |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2296 is omitted or one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2297 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2298 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2299 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2300 ROUNDING_CONVERT(ceiling, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2301 } |
| 1983 | 2302 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2303 DEFUN ("floor", Ffloor, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2304 Return the largest integer no greater than NUMBER. (Round towards -inf.) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2305 With optional second argument DIVISOR, return the largest integer no |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2306 greater than the quotient of NUMBER and DIVISOR. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2307 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2308 This function returns multiple values; see `multiple-value-call' and |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
2309 `multiple-value-bind'. The second returned value is the remainder in the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2310 calculation, which will just be the fractional part if DIVISOR is omitted or |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
2311 one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
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|
2312 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
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|
2313 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2314 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
2315 ROUNDING_CONVERT(floor, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2316 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
2317 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
2318 DEFUN ("round", Fround, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2319 Return the nearest integer to NUMBER. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2320 If NUMBER is exactly halfway between two integers, return the one that |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2321 is even. |
| 1983 | 2322 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2323 Optional argument DIVISOR means return the nearest integer to NUMBER |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2324 divided by DIVISOR. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2325 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2326 This function returns multiple values; see `multiple-value-call' and |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2327 `multiple-value-bind'. The second returned value is the remainder |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2328 in the calculation. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
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|
2329 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
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|
2330 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
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changeset
|
2331 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2332 ROUNDING_CONVERT(round, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2333 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2334 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2335 DEFUN ("truncate", Ftruncate, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2336 Truncate a floating point number to an integer. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
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|
2337 Rounds the value toward zero. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
2338 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2339 Optional argument DIVISOR means truncate NUMBER divided by DIVISOR. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2340 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2341 This function returns multiple values; see `multiple-value-call' and |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2342 `multiple-value-bind'. The second returned value is the remainder. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2343 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2344 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2345 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2346 ROUNDING_CONVERT(truncate, 0); |
| 428 | 2347 } |
| 2348 | |
| 2349 /* Float-rounding functions. */ | |
| 2350 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2351 DEFUN ("fceiling", Ffceiling, 1, 2, 0, /* |
| 444 | 2352 Return the smallest integer no less than NUMBER, as a float. |
| 428 | 2353 \(Round toward +inf.\) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2354 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2355 With optional argument DIVISOR, return the smallest integer no less than the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2356 quotient of NUMBER and DIVISOR, as a float. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2357 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2358 This function returns multiple values; the second value is the remainder in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2359 the calculation. |
| 428 | 2360 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2361 (number, divisor)) |
| 428 | 2362 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2363 ROUNDING_CONVERT(ceiling, 1); |
| 428 | 2364 } |
| 2365 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2366 DEFUN ("ffloor", Fffloor, 1, 2, 0, /* |
| 444 | 2367 Return the largest integer no greater than NUMBER, as a float. |
| 428 | 2368 \(Round towards -inf.\) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2369 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2370 With optional argument DIVISOR, return the largest integer no greater than |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2371 the quotient of NUMBER and DIVISOR, as a float. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2372 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2373 This function returns multiple values; the second value is the remainder in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2374 the calculation. |
| 428 | 2375 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2376 (number, divisor)) |
| 428 | 2377 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2378 ROUNDING_CONVERT(floor, 1); |
| 428 | 2379 } |
| 2380 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2381 DEFUN ("fround", Ffround, 1, 2, 0, /* |
| 444 | 2382 Return the nearest integer to NUMBER, as a float. |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2383 If NUMBER is exactly halfway between two integers, return the one that is |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2384 even. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2385 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2386 With optional argument DIVISOR, return the nearest integer to the quotient |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2387 of NUMBER and DIVISOR, as a float. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2388 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2389 This function returns multiple values; the second value is the remainder in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2390 the calculation. |
| 428 | 2391 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2392 (number, divisor)) |
| 428 | 2393 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2394 ROUNDING_CONVERT(round, 1); |
| 428 | 2395 } |
| 2396 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2397 DEFUN ("ftruncate", Fftruncate, 1, 2, 0, /* |
| 428 | 2398 Truncate a floating point number to an integral float value. |
| 2399 Rounds the value toward zero. | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2400 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2401 With optional argument DIVISOR, truncate the quotient of NUMBER and DIVISOR, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2402 to an integral float value. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2403 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2404 This function returns multiple values; the second value is the remainder in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2405 the calculation. |
| 428 | 2406 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2407 (number, divisor)) |
| 428 | 2408 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2409 ROUNDING_CONVERT(truncate, 1); |
| 428 | 2410 } |
| 2411 | |
| 2412 #ifdef FLOAT_CATCH_SIGILL | |
| 2413 static SIGTYPE | |
| 2414 float_error (int signo) | |
| 2415 { | |
| 2416 if (! in_float) | |
| 2417 fatal_error_signal (signo); | |
| 2418 | |
| 2419 EMACS_REESTABLISH_SIGNAL (signo, arith_error); | |
| 2420 EMACS_UNBLOCK_SIGNAL (signo); | |
| 2421 | |
| 2422 in_float = 0; | |
| 2423 | |
| 2424 /* Was Fsignal(), but it just doesn't make sense for an error | |
| 2425 occurring inside a signal handler to be restartable, considering | |
| 2426 that anything could happen when the error is signaled and trapped | |
| 2427 and considering the asynchronous nature of signal handlers. */ | |
| 563 | 2428 signal_error (Qarith_error, 0, float_error_arg); |
| 428 | 2429 } |
| 2430 | |
| 2431 /* Another idea was to replace the library function `infnan' | |
| 2432 where SIGILL is signaled. */ | |
| 2433 | |
| 2434 #endif /* FLOAT_CATCH_SIGILL */ | |
| 2435 | |
| 2436 /* In C++, it is impossible to determine what type matherr expects | |
| 2437 without some more configure magic. | |
| 2438 We shouldn't be using matherr anyways - it's a non-standard SYSVism. */ | |
| 2439 #if defined (HAVE_MATHERR) && !defined(__cplusplus) | |
| 2440 int | |
| 2441 matherr (struct exception *x) | |
| 2442 { | |
| 2443 Lisp_Object args; | |
| 2444 if (! in_float) | |
| 2445 /* Not called from emacs-lisp float routines; do the default thing. */ | |
| 2446 return 0; | |
| 2447 | |
| 2448 /* if (!strcmp (x->name, "pow")) x->name = "expt"; */ | |
| 2449 | |
| 2450 args = Fcons (build_string (x->name), | |
| 2451 Fcons (make_float (x->arg1), | |
| 2452 ((in_float == 2) | |
| 2453 ? Fcons (make_float (x->arg2), Qnil) | |
| 2454 : Qnil))); | |
| 2455 switch (x->type) | |
| 2456 { | |
| 2457 case DOMAIN: Fsignal (Qdomain_error, args); break; | |
| 2458 case SING: Fsignal (Qsingularity_error, args); break; | |
| 2459 case OVERFLOW: Fsignal (Qoverflow_error, args); break; | |
| 2460 case UNDERFLOW: Fsignal (Qunderflow_error, args); break; | |
| 2461 default: Fsignal (Qarith_error, args); break; | |
| 2462 } | |
| 2463 return 1; /* don't set errno or print a message */ | |
| 2464 } | |
| 2465 #endif /* HAVE_MATHERR */ | |
| 2466 | |
| 2467 void | |
| 2468 init_floatfns_very_early (void) | |
| 2469 { | |
| 2470 # ifdef FLOAT_CATCH_SIGILL | |
| 613 | 2471 EMACS_SIGNAL (SIGILL, float_error); |
| 428 | 2472 # endif |
| 2473 in_float = 0; | |
| 2474 } | |
| 2475 | |
| 2476 void | |
| 2477 syms_of_floatfns (void) | |
| 2478 { | |
| 442 | 2479 INIT_LRECORD_IMPLEMENTATION (float); |
| 428 | 2480 |
| 2481 /* Trig functions. */ | |
| 2482 | |
| 2483 DEFSUBR (Facos); | |
| 2484 DEFSUBR (Fasin); | |
| 2485 DEFSUBR (Fatan); | |
| 2486 DEFSUBR (Fcos); | |
| 2487 DEFSUBR (Fsin); | |
| 2488 DEFSUBR (Ftan); | |
| 2489 | |
| 2490 /* Bessel functions */ | |
| 2491 | |
| 2492 #if 0 | |
| 2493 DEFSUBR (Fbessel_y0); | |
| 2494 DEFSUBR (Fbessel_y1); | |
| 2495 DEFSUBR (Fbessel_yn); | |
| 2496 DEFSUBR (Fbessel_j0); | |
| 2497 DEFSUBR (Fbessel_j1); | |
| 2498 DEFSUBR (Fbessel_jn); | |
| 2499 #endif /* 0 */ | |
| 2500 | |
| 2501 /* Error functions. */ | |
| 2502 | |
| 2503 #if 0 | |
| 2504 DEFSUBR (Ferf); | |
| 2505 DEFSUBR (Ferfc); | |
| 2506 DEFSUBR (Flog_gamma); | |
| 2507 #endif /* 0 */ | |
| 2508 | |
| 2509 /* Root and Log functions. */ | |
| 2510 | |
| 2511 DEFSUBR (Fexp); | |
| 2512 DEFSUBR (Fexpt); | |
| 2513 DEFSUBR (Flog); | |
| 2514 DEFSUBR (Flog10); | |
| 2515 DEFSUBR (Fsqrt); | |
| 2516 DEFSUBR (Fcube_root); | |
| 2517 | |
| 2518 /* Inverse trig functions. */ | |
| 2519 | |
| 2520 DEFSUBR (Facosh); | |
| 2521 DEFSUBR (Fasinh); | |
| 2522 DEFSUBR (Fatanh); | |
| 2523 DEFSUBR (Fcosh); | |
| 2524 DEFSUBR (Fsinh); | |
| 2525 DEFSUBR (Ftanh); | |
| 2526 | |
| 2527 /* Rounding functions */ | |
| 2528 | |
| 2529 DEFSUBR (Fabs); | |
| 2530 DEFSUBR (Ffloat); | |
| 2531 DEFSUBR (Flogb); | |
| 2532 DEFSUBR (Fceiling); | |
| 2533 DEFSUBR (Ffloor); | |
| 2534 DEFSUBR (Fround); | |
| 2535 DEFSUBR (Ftruncate); | |
| 2536 | |
| 2537 /* Float-rounding functions. */ | |
| 2538 | |
| 2539 DEFSUBR (Ffceiling); | |
| 2540 DEFSUBR (Fffloor); | |
| 2541 DEFSUBR (Ffround); | |
| 2542 DEFSUBR (Fftruncate); | |
| 2543 } | |
| 2544 | |
| 2545 void | |
| 2546 vars_of_floatfns (void) | |
| 2547 { | |
| 2548 Fprovide (intern ("lisp-float-type")); | |
| 2549 } |