Mercurial > hg > xemacs-beta
annotate src/floatfns.c @ 5313:5ed261fd2bd9
Unrool a load-time loop at macro expansion time, cl-macs.el
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (inline-side-effect-free-compiler-macros):
Unroll a loop here at macro-expansion time, so these compiler
macros are compiled. Use #'eql instead of #'eq in a couple of
places for better style.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 29 Dec 2010 23:43:10 +0000 |
| parents | 378a34562cbe |
| children | 2a7b6ddb8063 308d34e9f07d |
| 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 If you don't define these, then the appropriate routines will be simulated. | |
| 30 | |
| 31 Define HAVE_MATHERR if on a system supporting the SysV matherr() callback. | |
| 32 (This should happen automatically.) | |
| 33 | |
| 34 Define FLOAT_CHECK_ERRNO if the float library routines set errno. | |
| 35 This has no effect if HAVE_MATHERR is defined. | |
| 36 | |
| 37 Define FLOAT_CATCH_SIGILL if the float library routines signal SIGILL. | |
| 38 (What systems actually do this? Let me know. -jwz) | |
| 39 | |
| 40 Define FLOAT_CHECK_DOMAIN if the float library doesn't handle errors by | |
| 41 either setting errno, or signalling SIGFPE/SIGILL. Otherwise, domain and | |
| 42 range checking will happen before calling the float routines. This has | |
| 43 no effect if HAVE_MATHERR is defined (since matherr will be called when | |
| 44 a domain error occurs). | |
| 45 */ | |
| 46 | |
| 47 #include <config.h> | |
| 48 #include "lisp.h" | |
| 49 #include "syssignal.h" | |
| 50 #include "sysfloat.h" | |
| 51 | |
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52 /* An implementation of rint that always rounds towards the even number in |
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53 the case of ambiguity. */ |
| 428 | 54 static double |
| 430 | 55 emacs_rint (double x) |
| 428 | 56 { |
| 57 double r = floor (x + 0.5); | |
| 58 double diff = fabs (r - x); | |
| 59 /* Round to even and correct for any roundoff errors. */ | |
| 60 if (diff >= 0.5 && (diff > 0.5 || r != 2.0 * floor (r / 2.0))) | |
| 61 r += r < x ? 1.0 : -1.0; | |
| 62 return r; | |
| 63 } | |
| 64 | |
| 65 /* Nonzero while executing in floating point. | |
| 66 This tells float_error what to do. */ | |
| 67 static int in_float; | |
| 68 | |
| 69 /* If an argument is out of range for a mathematical function, | |
| 70 here is the actual argument value to use in the error message. */ | |
| 71 static Lisp_Object float_error_arg, float_error_arg2; | |
| 442 | 72 static const char *float_error_fn_name; |
| 428 | 73 |
| 74 /* Evaluate the floating point expression D, recording NUM | |
| 75 as the original argument for error messages. | |
| 76 D is normally an assignment expression. | |
| 77 Handle errors which may result in signals or may set errno. | |
| 78 | |
| 79 Note that float_error may be declared to return void, so you can't | |
| 80 just cast the zero after the colon to (SIGTYPE) to make the types | |
| 81 check properly. */ | |
| 82 #ifdef FLOAT_CHECK_ERRNO | |
| 83 #define IN_FLOAT(d, name, num) \ | |
| 84 do { \ | |
| 85 float_error_arg = num; \ | |
| 86 float_error_fn_name = name; \ | |
| 87 in_float = 1; errno = 0; (d); in_float = 0; \ | |
| 88 if (errno != 0) in_float_error (); \ | |
| 89 } while (0) | |
| 90 #define IN_FLOAT2(d, name, num, num2) \ | |
| 91 do { \ | |
| 92 float_error_arg = num; \ | |
| 93 float_error_arg2 = num2; \ | |
| 94 float_error_fn_name = name; \ | |
| 95 in_float = 2; errno = 0; (d); in_float = 0; \ | |
| 96 if (errno != 0) in_float_error (); \ | |
| 97 } while (0) | |
| 98 #else | |
| 99 #define IN_FLOAT(d, name, num) (in_float = 1, (d), in_float = 0) | |
| 100 #define IN_FLOAT2(d, name, num, num2) (in_float = 2, (d), in_float = 0) | |
| 101 #endif | |
| 102 | |
| 103 | |
| 104 #define arith_error(op,arg) \ | |
| 771 | 105 Fsignal (Qarith_error, list2 (build_msg_string (op), arg)) |
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106 #define arith_error2(op,a1,a2) \ |
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107 Fsignal (Qarith_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 108 #define range_error(op,arg) \ |
| 771 | 109 Fsignal (Qrange_error, list2 (build_msg_string (op), arg)) |
| 428 | 110 #define range_error2(op,a1,a2) \ |
| 771 | 111 Fsignal (Qrange_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 112 #define domain_error(op,arg) \ |
| 771 | 113 Fsignal (Qdomain_error, list2 (build_msg_string (op), arg)) |
| 428 | 114 #define domain_error2(op,a1,a2) \ |
| 771 | 115 Fsignal (Qdomain_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 116 |
| 117 | |
| 118 /* Convert float to Lisp Integer if it fits, else signal a range | |
| 1983 | 119 error using the given arguments. If bignums are available, range errors |
| 120 are never signaled. */ | |
| 428 | 121 static Lisp_Object |
| 2286 | 122 float_to_int (double x, |
| 123 #ifdef HAVE_BIGNUM | |
| 124 const char *UNUSED (name), Lisp_Object UNUSED (num), | |
| 125 Lisp_Object UNUSED (num2) | |
| 126 #else | |
| 127 const char *name, Lisp_Object num, Lisp_Object num2 | |
| 128 #endif | |
| 129 ) | |
| 428 | 130 { |
| 1983 | 131 #ifdef HAVE_BIGNUM |
| 132 bignum_set_double (scratch_bignum, x); | |
| 133 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 134 #else | |
| 2039 | 135 REGISTER EMACS_INT result = (EMACS_INT) x; |
| 136 | |
| 137 if (result > EMACS_INT_MAX || result < EMACS_INT_MIN) | |
| 138 { | |
| 139 if (!UNBOUNDP (num2)) | |
| 140 range_error2 (name, num, num2); | |
| 141 else | |
| 142 range_error (name, num); | |
| 143 } | |
| 144 return make_int (result); | |
| 1983 | 145 #endif /* HAVE_BIGNUM */ |
| 428 | 146 } |
| 147 | |
| 148 | |
| 149 static void | |
| 150 in_float_error (void) | |
| 151 { | |
| 152 switch (errno) | |
| 153 { | |
| 154 case 0: | |
| 155 break; | |
| 156 case EDOM: | |
| 157 if (in_float == 2) | |
| 158 domain_error2 (float_error_fn_name, float_error_arg, float_error_arg2); | |
| 159 else | |
| 160 domain_error (float_error_fn_name, float_error_arg); | |
| 161 break; | |
| 162 case ERANGE: | |
| 163 range_error (float_error_fn_name, float_error_arg); | |
| 164 break; | |
| 165 default: | |
| 166 arith_error (float_error_fn_name, float_error_arg); | |
| 167 break; | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 | |
| 172 static Lisp_Object | |
| 2286 | 173 mark_float (Lisp_Object UNUSED (obj)) |
| 428 | 174 { |
| 175 return Qnil; | |
| 176 } | |
| 177 | |
| 178 static int | |
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179 float_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth), |
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180 int UNUSED (foldcase)) |
| 428 | 181 { |
| 182 return (extract_float (obj1) == extract_float (obj2)); | |
| 183 } | |
| 184 | |
| 665 | 185 static Hashcode |
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186 float_hash (Lisp_Object obj, int UNUSED (depth), Boolint UNUSED (equalp)) |
| 428 | 187 { |
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188 return FLOAT_HASHCODE_FROM_DOUBLE (extract_float (obj)); |
| 428 | 189 } |
| 190 | |
| 1204 | 191 static const struct memory_description float_description[] = { |
| 428 | 192 { XD_END } |
| 193 }; | |
| 194 | |
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195 DEFINE_DUMPABLE_FROB_BLOCK_LISP_OBJECT ("float", float, |
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196 mark_float, print_float, 0, |
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197 float_equal, float_hash, |
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198 float_description, Lisp_Float); |
| 428 | 199 |
| 200 /* Extract a Lisp number as a `double', or signal an error. */ | |
| 201 | |
| 202 double | |
| 203 extract_float (Lisp_Object num) | |
| 204 { | |
| 205 if (FLOATP (num)) | |
| 206 return XFLOAT_DATA (num); | |
| 207 | |
| 208 if (INTP (num)) | |
| 209 return (double) XINT (num); | |
| 210 | |
| 1983 | 211 #ifdef HAVE_BIGNUM |
| 212 if (BIGNUMP (num)) | |
| 213 return bignum_to_double (XBIGNUM_DATA (num)); | |
| 214 #endif | |
| 215 | |
| 216 #ifdef HAVE_RATIO | |
| 217 if (RATIOP (num)) | |
| 218 return ratio_to_double (XRATIO_DATA (num)); | |
| 219 #endif | |
| 220 | |
| 221 #ifdef HAVE_BIGFLOAT | |
| 222 if (BIGFLOATP (num)) | |
| 223 return bigfloat_to_double (XBIGFLOAT_DATA (num)); | |
| 224 #endif | |
| 225 | |
| 428 | 226 return extract_float (wrong_type_argument (Qnumberp, num)); |
| 227 } | |
| 228 | |
| 229 /* Trig functions. */ | |
| 230 | |
| 231 DEFUN ("acos", Facos, 1, 1, 0, /* | |
| 444 | 232 Return the inverse cosine of NUMBER. |
| 428 | 233 */ |
| 444 | 234 (number)) |
| 428 | 235 { |
| 444 | 236 double d = extract_float (number); |
| 428 | 237 #ifdef FLOAT_CHECK_DOMAIN |
| 238 if (d > 1.0 || d < -1.0) | |
| 444 | 239 domain_error ("acos", number); |
| 428 | 240 #endif |
| 444 | 241 IN_FLOAT (d = acos (d), "acos", number); |
| 428 | 242 return make_float (d); |
| 243 } | |
| 244 | |
| 245 DEFUN ("asin", Fasin, 1, 1, 0, /* | |
| 444 | 246 Return the inverse sine of NUMBER. |
| 428 | 247 */ |
| 444 | 248 (number)) |
| 428 | 249 { |
| 444 | 250 double d = extract_float (number); |
| 428 | 251 #ifdef FLOAT_CHECK_DOMAIN |
| 252 if (d > 1.0 || d < -1.0) | |
| 444 | 253 domain_error ("asin", number); |
| 428 | 254 #endif |
| 444 | 255 IN_FLOAT (d = asin (d), "asin", number); |
| 428 | 256 return make_float (d); |
| 257 } | |
| 258 | |
| 259 DEFUN ("atan", Fatan, 1, 2, 0, /* | |
| 444 | 260 Return the inverse tangent of NUMBER. |
| 261 If optional second argument NUMBER2 is provided, | |
| 262 return atan2 (NUMBER, NUMBER2). | |
| 428 | 263 */ |
| 444 | 264 (number, number2)) |
| 428 | 265 { |
| 444 | 266 double d = extract_float (number); |
| 428 | 267 |
| 444 | 268 if (NILP (number2)) |
| 269 IN_FLOAT (d = atan (d), "atan", number); | |
| 428 | 270 else |
| 271 { | |
| 444 | 272 double d2 = extract_float (number2); |
| 428 | 273 #ifdef FLOAT_CHECK_DOMAIN |
| 274 if (d == 0.0 && d2 == 0.0) | |
| 444 | 275 domain_error2 ("atan", number, number2); |
| 428 | 276 #endif |
| 444 | 277 IN_FLOAT2 (d = atan2 (d, d2), "atan", number, number2); |
| 428 | 278 } |
| 279 return make_float (d); | |
| 280 } | |
| 281 | |
| 282 DEFUN ("cos", Fcos, 1, 1, 0, /* | |
| 444 | 283 Return the cosine of NUMBER. |
| 428 | 284 */ |
| 444 | 285 (number)) |
| 428 | 286 { |
| 444 | 287 double d = extract_float (number); |
| 288 IN_FLOAT (d = cos (d), "cos", number); | |
| 428 | 289 return make_float (d); |
| 290 } | |
| 291 | |
| 292 DEFUN ("sin", Fsin, 1, 1, 0, /* | |
| 444 | 293 Return the sine of NUMBER. |
| 428 | 294 */ |
| 444 | 295 (number)) |
| 428 | 296 { |
| 444 | 297 double d = extract_float (number); |
| 298 IN_FLOAT (d = sin (d), "sin", number); | |
| 428 | 299 return make_float (d); |
| 300 } | |
| 301 | |
| 302 DEFUN ("tan", Ftan, 1, 1, 0, /* | |
| 444 | 303 Return the tangent of NUMBER. |
| 428 | 304 */ |
| 444 | 305 (number)) |
| 428 | 306 { |
| 444 | 307 double d = extract_float (number); |
| 428 | 308 double c = cos (d); |
| 309 #ifdef FLOAT_CHECK_DOMAIN | |
| 310 if (c == 0.0) | |
| 444 | 311 domain_error ("tan", number); |
| 428 | 312 #endif |
| 444 | 313 IN_FLOAT (d = (sin (d) / c), "tan", number); |
| 428 | 314 return make_float (d); |
| 315 } | |
| 316 | |
| 317 /* Bessel functions */ | |
| 318 #if 0 /* Leave these out unless we find there's a reason for them. */ | |
| 319 | |
| 320 DEFUN ("bessel-j0", Fbessel_j0, 1, 1, 0, /* | |
| 444 | 321 Return the bessel function j0 of NUMBER. |
| 428 | 322 */ |
| 444 | 323 (number)) |
| 428 | 324 { |
| 444 | 325 double d = extract_float (number); |
| 326 IN_FLOAT (d = j0 (d), "bessel-j0", number); | |
| 428 | 327 return make_float (d); |
| 328 } | |
| 329 | |
| 330 DEFUN ("bessel-j1", Fbessel_j1, 1, 1, 0, /* | |
| 444 | 331 Return the bessel function j1 of NUMBER. |
| 428 | 332 */ |
| 444 | 333 (number)) |
| 428 | 334 { |
| 444 | 335 double d = extract_float (number); |
| 336 IN_FLOAT (d = j1 (d), "bessel-j1", number); | |
| 428 | 337 return make_float (d); |
| 338 } | |
| 339 | |
| 340 DEFUN ("bessel-jn", Fbessel_jn, 2, 2, 0, /* | |
| 444 | 341 Return the order N bessel function output jn of NUMBER. |
| 342 The first number (the order) is truncated to an integer. | |
| 428 | 343 */ |
| 444 | 344 (number1, number2)) |
| 428 | 345 { |
| 444 | 346 int i1 = extract_float (number1); |
| 347 double f2 = extract_float (number2); | |
| 428 | 348 |
| 444 | 349 IN_FLOAT (f2 = jn (i1, f2), "bessel-jn", number1); |
| 428 | 350 return make_float (f2); |
| 351 } | |
| 352 | |
| 353 DEFUN ("bessel-y0", Fbessel_y0, 1, 1, 0, /* | |
| 444 | 354 Return the bessel function y0 of NUMBER. |
| 428 | 355 */ |
| 444 | 356 (number)) |
| 428 | 357 { |
| 444 | 358 double d = extract_float (number); |
| 359 IN_FLOAT (d = y0 (d), "bessel-y0", number); | |
| 428 | 360 return make_float (d); |
| 361 } | |
| 362 | |
| 363 DEFUN ("bessel-y1", Fbessel_y1, 1, 1, 0, /* | |
| 444 | 364 Return the bessel function y1 of NUMBER. |
| 428 | 365 */ |
| 444 | 366 (number)) |
| 428 | 367 { |
| 444 | 368 double d = extract_float (number); |
| 369 IN_FLOAT (d = y1 (d), "bessel-y0", number); | |
| 428 | 370 return make_float (d); |
| 371 } | |
| 372 | |
| 373 DEFUN ("bessel-yn", Fbessel_yn, 2, 2, 0, /* | |
| 444 | 374 Return the order N bessel function output yn of NUMBER. |
| 375 The first number (the order) is truncated to an integer. | |
| 428 | 376 */ |
| 444 | 377 (number1, number2)) |
| 428 | 378 { |
| 444 | 379 int i1 = extract_float (number1); |
| 380 double f2 = extract_float (number2); | |
| 428 | 381 |
| 444 | 382 IN_FLOAT (f2 = yn (i1, f2), "bessel-yn", number1); |
| 428 | 383 return make_float (f2); |
| 384 } | |
| 385 | |
| 386 #endif /* 0 (bessel functions) */ | |
| 387 | |
| 388 /* Error functions. */ | |
| 389 #if 0 /* Leave these out unless we see they are worth having. */ | |
| 390 | |
| 391 DEFUN ("erf", Ferf, 1, 1, 0, /* | |
| 444 | 392 Return the mathematical error function of NUMBER. |
| 428 | 393 */ |
| 444 | 394 (number)) |
| 428 | 395 { |
| 444 | 396 double d = extract_float (number); |
| 397 IN_FLOAT (d = erf (d), "erf", number); | |
| 428 | 398 return make_float (d); |
| 399 } | |
| 400 | |
| 401 DEFUN ("erfc", Ferfc, 1, 1, 0, /* | |
| 444 | 402 Return the complementary error function of NUMBER. |
| 428 | 403 */ |
| 444 | 404 (number)) |
| 428 | 405 { |
| 444 | 406 double d = extract_float (number); |
| 407 IN_FLOAT (d = erfc (d), "erfc", number); | |
| 428 | 408 return make_float (d); |
| 409 } | |
| 410 | |
| 411 DEFUN ("log-gamma", Flog_gamma, 1, 1, 0, /* | |
| 444 | 412 Return the log gamma of NUMBER. |
| 428 | 413 */ |
| 444 | 414 (number)) |
| 428 | 415 { |
| 444 | 416 double d = extract_float (number); |
| 417 IN_FLOAT (d = lgamma (d), "log-gamma", number); | |
| 428 | 418 return make_float (d); |
| 419 } | |
| 420 | |
| 421 #endif /* 0 (error functions) */ | |
| 422 | |
| 423 | |
| 424 /* Root and Log functions. */ | |
| 425 | |
| 426 DEFUN ("exp", Fexp, 1, 1, 0, /* | |
| 444 | 427 Return the exponential base e of NUMBER. |
| 428 | 428 */ |
| 444 | 429 (number)) |
| 428 | 430 { |
| 444 | 431 double d = extract_float (number); |
| 428 | 432 #ifdef FLOAT_CHECK_DOMAIN |
| 433 if (d > 709.7827) /* Assume IEEE doubles here */ | |
| 444 | 434 range_error ("exp", number); |
| 428 | 435 else if (d < -709.0) |
| 436 return make_float (0.0); | |
| 437 else | |
| 438 #endif | |
| 444 | 439 IN_FLOAT (d = exp (d), "exp", number); |
| 428 | 440 return make_float (d); |
| 441 } | |
| 442 | |
| 443 DEFUN ("expt", Fexpt, 2, 2, 0, /* | |
| 444 | 444 Return the exponential NUMBER1 ** NUMBER2. |
| 428 | 445 */ |
| 444 | 446 (number1, number2)) |
| 428 | 447 { |
| 1983 | 448 #ifdef HAVE_BIGNUM |
| 449 if (INTEGERP (number1) && INTP (number2)) | |
| 450 { | |
| 451 if (INTP (number1)) | |
| 452 { | |
| 453 bignum_set_long (scratch_bignum2, XREALINT (number1)); | |
| 454 bignum_pow (scratch_bignum, scratch_bignum2, XREALINT (number2)); | |
| 455 } | |
| 456 else | |
| 457 bignum_pow (scratch_bignum, XBIGNUM_DATA (number1), | |
| 458 XREALINT (number2)); | |
| 459 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 460 } | |
| 461 #endif | |
| 462 | |
| 444 | 463 if (INTP (number1) && /* common lisp spec */ |
| 464 INTP (number2)) /* don't promote, if both are ints */ | |
| 428 | 465 { |
| 466 EMACS_INT retval; | |
| 444 | 467 EMACS_INT x = XINT (number1); |
| 468 EMACS_INT y = XINT (number2); | |
| 428 | 469 |
| 470 if (y < 0) | |
| 471 { | |
| 472 if (x == 1) | |
| 473 retval = 1; | |
| 474 else if (x == -1) | |
| 475 retval = (y & 1) ? -1 : 1; | |
| 476 else | |
| 477 retval = 0; | |
| 478 } | |
| 479 else | |
| 480 { | |
| 481 retval = 1; | |
| 482 while (y > 0) | |
| 483 { | |
| 484 if (y & 1) | |
| 485 retval *= x; | |
| 486 x *= x; | |
| 487 y = (EMACS_UINT) y >> 1; | |
| 488 } | |
| 489 } | |
| 490 return make_int (retval); | |
| 491 } | |
| 492 | |
| 1983 | 493 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_pow) |
| 494 if (BIGFLOATP (number1) && INTEGERP (number2)) | |
| 495 { | |
| 2057 | 496 unsigned long exponent; |
| 1983 | 497 |
| 498 #ifdef HAVE_BIGNUM | |
| 499 if (BIGNUMP (number2)) | |
| 2057 | 500 exponent = bignum_to_ulong (XBIGNUM_DATA (number2)); |
| 1983 | 501 else |
| 502 #endif | |
| 2057 | 503 exponent = XUINT (number2); |
| 1983 | 504 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number1)); |
| 2057 | 505 bigfloat_pow (scratch_bigfloat, XBIGFLOAT_DATA (number1), exponent); |
| 1983 | 506 return make_bigfloat_bf (scratch_bigfloat); |
| 507 } | |
| 508 #endif | |
| 509 | |
| 428 | 510 { |
| 444 | 511 double f1 = extract_float (number1); |
| 512 double f2 = extract_float (number2); | |
| 428 | 513 /* Really should check for overflow, too */ |
| 514 if (f1 == 0.0 && f2 == 0.0) | |
| 515 f1 = 1.0; | |
| 516 # ifdef FLOAT_CHECK_DOMAIN | |
| 517 else if ((f1 == 0.0 && f2 < 0.0) || (f1 < 0 && f2 != floor(f2))) | |
| 444 | 518 domain_error2 ("expt", number1, number2); |
| 428 | 519 # endif /* FLOAT_CHECK_DOMAIN */ |
| 444 | 520 IN_FLOAT2 (f1 = pow (f1, f2), "expt", number1, number2); |
| 428 | 521 return make_float (f1); |
| 522 } | |
| 523 } | |
| 524 | |
| 525 DEFUN ("log", Flog, 1, 2, 0, /* | |
| 444 | 526 Return the natural logarithm of NUMBER. |
| 527 If second optional argument BASE is given, return the logarithm of | |
| 528 NUMBER using that base. | |
| 428 | 529 */ |
| 444 | 530 (number, base)) |
| 428 | 531 { |
| 444 | 532 double d = extract_float (number); |
| 428 | 533 #ifdef FLOAT_CHECK_DOMAIN |
| 534 if (d <= 0.0) | |
| 444 | 535 domain_error2 ("log", number, base); |
| 428 | 536 #endif |
| 537 if (NILP (base)) | |
| 444 | 538 IN_FLOAT (d = log (d), "log", number); |
| 428 | 539 else |
| 540 { | |
| 541 double b = extract_float (base); | |
| 542 #ifdef FLOAT_CHECK_DOMAIN | |
| 543 if (b <= 0.0 || b == 1.0) | |
| 444 | 544 domain_error2 ("log", number, base); |
| 428 | 545 #endif |
| 546 if (b == 10.0) | |
| 444 | 547 IN_FLOAT2 (d = log10 (d), "log", number, base); |
| 428 | 548 else |
| 444 | 549 IN_FLOAT2 (d = (log (d) / log (b)), "log", number, base); |
| 428 | 550 } |
| 551 return make_float (d); | |
| 552 } | |
| 553 | |
| 554 | |
| 555 DEFUN ("log10", Flog10, 1, 1, 0, /* | |
| 444 | 556 Return the logarithm base 10 of NUMBER. |
| 428 | 557 */ |
| 444 | 558 (number)) |
| 428 | 559 { |
| 444 | 560 double d = extract_float (number); |
| 428 | 561 #ifdef FLOAT_CHECK_DOMAIN |
| 562 if (d <= 0.0) | |
| 444 | 563 domain_error ("log10", number); |
| 428 | 564 #endif |
| 444 | 565 IN_FLOAT (d = log10 (d), "log10", number); |
| 428 | 566 return make_float (d); |
| 567 } | |
| 568 | |
| 569 | |
| 570 DEFUN ("sqrt", Fsqrt, 1, 1, 0, /* | |
| 444 | 571 Return the square root of NUMBER. |
| 428 | 572 */ |
| 444 | 573 (number)) |
| 428 | 574 { |
| 1983 | 575 double d; |
| 576 | |
| 577 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_sqrt) | |
| 578 if (BIGFLOATP (number)) | |
| 579 { | |
| 580 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 581 bigfloat_sqrt (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 582 return make_bigfloat_bf (scratch_bigfloat); | |
| 583 } | |
| 584 #endif /* HAVE_BIGFLOAT */ | |
| 585 d = extract_float (number); | |
| 428 | 586 #ifdef FLOAT_CHECK_DOMAIN |
| 587 if (d < 0.0) | |
| 444 | 588 domain_error ("sqrt", number); |
| 428 | 589 #endif |
| 444 | 590 IN_FLOAT (d = sqrt (d), "sqrt", number); |
| 428 | 591 return make_float (d); |
| 592 } | |
| 593 | |
| 594 | |
| 595 DEFUN ("cube-root", Fcube_root, 1, 1, 0, /* | |
| 444 | 596 Return the cube root of NUMBER. |
| 428 | 597 */ |
| 444 | 598 (number)) |
| 428 | 599 { |
| 444 | 600 double d = extract_float (number); |
| 428 | 601 #ifdef HAVE_CBRT |
| 444 | 602 IN_FLOAT (d = cbrt (d), "cube-root", number); |
| 428 | 603 #else |
| 604 if (d >= 0.0) | |
| 444 | 605 IN_FLOAT (d = pow (d, 1.0/3.0), "cube-root", number); |
| 428 | 606 else |
| 444 | 607 IN_FLOAT (d = -pow (-d, 1.0/3.0), "cube-root", number); |
| 428 | 608 #endif |
| 609 return make_float (d); | |
| 610 } | |
| 611 | |
| 612 /* Inverse trig functions. */ | |
| 613 | |
| 614 DEFUN ("acosh", Facosh, 1, 1, 0, /* | |
| 444 | 615 Return the inverse hyperbolic cosine of NUMBER. |
| 428 | 616 */ |
| 444 | 617 (number)) |
| 428 | 618 { |
| 444 | 619 double d = extract_float (number); |
| 428 | 620 #ifdef FLOAT_CHECK_DOMAIN |
| 621 if (d < 1.0) | |
| 444 | 622 domain_error ("acosh", number); |
| 428 | 623 #endif |
| 624 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 625 IN_FLOAT (d = acosh (d), "acosh", number); |
| 428 | 626 #else |
| 444 | 627 IN_FLOAT (d = log (d + sqrt (d*d - 1.0)), "acosh", number); |
| 428 | 628 #endif |
| 629 return make_float (d); | |
| 630 } | |
| 631 | |
| 632 DEFUN ("asinh", Fasinh, 1, 1, 0, /* | |
| 444 | 633 Return the inverse hyperbolic sine of NUMBER. |
| 428 | 634 */ |
| 444 | 635 (number)) |
| 428 | 636 { |
| 444 | 637 double d = extract_float (number); |
| 428 | 638 #ifdef HAVE_INVERSE_HYPERBOLIC |
| 444 | 639 IN_FLOAT (d = asinh (d), "asinh", number); |
| 428 | 640 #else |
| 444 | 641 IN_FLOAT (d = log (d + sqrt (d*d + 1.0)), "asinh", number); |
| 428 | 642 #endif |
| 643 return make_float (d); | |
| 644 } | |
| 645 | |
| 646 DEFUN ("atanh", Fatanh, 1, 1, 0, /* | |
| 444 | 647 Return the inverse hyperbolic tangent of NUMBER. |
| 428 | 648 */ |
| 444 | 649 (number)) |
| 428 | 650 { |
| 444 | 651 double d = extract_float (number); |
| 428 | 652 #ifdef FLOAT_CHECK_DOMAIN |
| 653 if (d >= 1.0 || d <= -1.0) | |
| 444 | 654 domain_error ("atanh", number); |
| 428 | 655 #endif |
| 656 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 657 IN_FLOAT (d = atanh (d), "atanh", number); |
| 428 | 658 #else |
| 444 | 659 IN_FLOAT (d = 0.5 * log ((1.0 + d) / (1.0 - d)), "atanh", number); |
| 428 | 660 #endif |
| 661 return make_float (d); | |
| 662 } | |
| 663 | |
| 664 DEFUN ("cosh", Fcosh, 1, 1, 0, /* | |
| 444 | 665 Return the hyperbolic cosine of NUMBER. |
| 428 | 666 */ |
| 444 | 667 (number)) |
| 428 | 668 { |
| 444 | 669 double d = extract_float (number); |
| 428 | 670 #ifdef FLOAT_CHECK_DOMAIN |
| 671 if (d > 710.0 || d < -710.0) | |
| 444 | 672 range_error ("cosh", number); |
| 428 | 673 #endif |
| 444 | 674 IN_FLOAT (d = cosh (d), "cosh", number); |
| 428 | 675 return make_float (d); |
| 676 } | |
| 677 | |
| 678 DEFUN ("sinh", Fsinh, 1, 1, 0, /* | |
| 444 | 679 Return the hyperbolic sine of NUMBER. |
| 428 | 680 */ |
| 444 | 681 (number)) |
| 428 | 682 { |
| 444 | 683 double d = extract_float (number); |
| 428 | 684 #ifdef FLOAT_CHECK_DOMAIN |
| 685 if (d > 710.0 || d < -710.0) | |
| 444 | 686 range_error ("sinh", number); |
| 428 | 687 #endif |
| 444 | 688 IN_FLOAT (d = sinh (d), "sinh", number); |
| 428 | 689 return make_float (d); |
| 690 } | |
| 691 | |
| 692 DEFUN ("tanh", Ftanh, 1, 1, 0, /* | |
| 444 | 693 Return the hyperbolic tangent of NUMBER. |
| 428 | 694 */ |
| 444 | 695 (number)) |
| 428 | 696 { |
| 444 | 697 double d = extract_float (number); |
| 698 IN_FLOAT (d = tanh (d), "tanh", number); | |
| 428 | 699 return make_float (d); |
| 700 } | |
| 701 | |
| 702 /* Rounding functions */ | |
| 703 | |
| 704 DEFUN ("abs", Fabs, 1, 1, 0, /* | |
| 444 | 705 Return the absolute value of NUMBER. |
| 428 | 706 */ |
| 444 | 707 (number)) |
| 428 | 708 { |
| 444 | 709 if (FLOATP (number)) |
| 428 | 710 { |
| 444 | 711 IN_FLOAT (number = make_float (fabs (XFLOAT_DATA (number))), |
| 712 "abs", number); | |
| 713 return number; | |
| 428 | 714 } |
| 715 | |
| 444 | 716 if (INTP (number)) |
| 1983 | 717 #ifdef HAVE_BIGNUM |
| 718 /* The most negative Lisp fixnum will overflow */ | |
| 719 return (XINT (number) >= 0) ? number : make_integer (- XINT (number)); | |
| 720 #else | |
| 444 | 721 return (XINT (number) >= 0) ? number : make_int (- XINT (number)); |
| 1983 | 722 #endif |
| 723 | |
| 724 #ifdef HAVE_BIGNUM | |
| 725 if (BIGNUMP (number)) | |
| 726 { | |
| 727 if (bignum_sign (XBIGNUM_DATA (number)) >= 0) | |
| 728 return number; | |
| 729 bignum_abs (scratch_bignum, XBIGNUM_DATA (number)); | |
| 730 return make_bignum_bg (scratch_bignum); | |
| 731 } | |
| 732 #endif | |
| 733 | |
| 734 #ifdef HAVE_RATIO | |
| 735 if (RATIOP (number)) | |
| 736 { | |
| 737 if (ratio_sign (XRATIO_DATA (number)) >= 0) | |
| 738 return number; | |
| 739 ratio_abs (scratch_ratio, XRATIO_DATA (number)); | |
| 740 return make_ratio_rt (scratch_ratio); | |
| 741 } | |
| 742 #endif | |
| 743 | |
| 744 #ifdef HAVE_BIGFLOAT | |
| 745 if (BIGFLOATP (number)) | |
| 746 { | |
| 747 if (bigfloat_sign (XBIGFLOAT_DATA (number)) >= 0) | |
| 748 return number; | |
| 749 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 750 bigfloat_abs (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 751 return make_bigfloat_bf (scratch_bigfloat); | |
| 752 } | |
| 753 #endif | |
| 428 | 754 |
| 444 | 755 return Fabs (wrong_type_argument (Qnumberp, number)); |
| 428 | 756 } |
| 757 | |
| 758 DEFUN ("float", Ffloat, 1, 1, 0, /* | |
| 444 | 759 Return the floating point number numerically equal to NUMBER. |
| 428 | 760 */ |
| 444 | 761 (number)) |
| 428 | 762 { |
| 444 | 763 if (INTP (number)) |
| 764 return make_float ((double) XINT (number)); | |
| 428 | 765 |
| 1983 | 766 #ifdef HAVE_BIGNUM |
|
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767 if (BIGNUMP (number)) |
| 1983 | 768 { |
| 769 #ifdef HAVE_BIGFLOAT | |
| 770 if (ZEROP (Vdefault_float_precision)) | |
| 771 #endif | |
| 772 return make_float (bignum_to_double (XBIGNUM_DATA (number))); | |
| 773 #ifdef HAVE_BIGFLOAT | |
| 774 else | |
| 775 { | |
| 776 bigfloat_set_prec (scratch_bigfloat, bigfloat_get_default_prec ()); | |
| 777 bigfloat_set_bignum (scratch_bigfloat, XBIGNUM_DATA (number)); | |
| 778 return make_bigfloat_bf (scratch_bigfloat); | |
| 779 } | |
| 780 #endif /* HAVE_BIGFLOAT */ | |
| 781 } | |
| 782 #endif /* HAVE_BIGNUM */ | |
| 783 | |
| 784 #ifdef HAVE_RATIO | |
| 785 if (RATIOP (number)) | |
| 2092 | 786 return make_float (ratio_to_double (XRATIO_DATA (number))); |
| 1983 | 787 #endif |
| 788 | |
| 444 | 789 if (FLOATP (number)) /* give 'em the same float back */ |
| 790 return number; | |
| 428 | 791 |
| 444 | 792 return Ffloat (wrong_type_argument (Qnumberp, number)); |
| 428 | 793 } |
| 794 | |
| 795 DEFUN ("logb", Flogb, 1, 1, 0, /* | |
| 444 | 796 Return largest integer <= the base 2 log of the magnitude of NUMBER. |
| 428 | 797 This is the same as the exponent of a float. |
| 798 */ | |
| 444 | 799 (number)) |
| 428 | 800 { |
| 444 | 801 double f = extract_float (number); |
| 428 | 802 |
| 803 if (f == 0.0) | |
| 2039 | 804 return make_int (EMACS_INT_MIN); |
| 428 | 805 #ifdef HAVE_LOGB |
| 806 { | |
| 807 Lisp_Object val; | |
| 444 | 808 IN_FLOAT (val = make_int ((EMACS_INT) logb (f)), "logb", number); |
| 434 | 809 return val; |
| 428 | 810 } |
| 811 #else | |
| 812 #ifdef HAVE_FREXP | |
| 813 { | |
| 814 int exqp; | |
| 444 | 815 IN_FLOAT (frexp (f, &exqp), "logb", number); |
| 434 | 816 return make_int (exqp - 1); |
| 428 | 817 } |
| 818 #else | |
| 819 { | |
| 820 int i; | |
| 821 double d; | |
| 822 EMACS_INT val; | |
| 823 if (f < 0.0) | |
| 824 f = -f; | |
| 825 val = -1; | |
| 826 while (f < 0.5) | |
| 827 { | |
| 828 for (i = 1, d = 0.5; d * d >= f; i += i) | |
| 829 d *= d; | |
| 830 f /= d; | |
| 831 val -= i; | |
| 832 } | |
| 833 while (f >= 1.0) | |
| 834 { | |
| 835 for (i = 1, d = 2.0; d * d <= f; i += i) | |
| 836 d *= d; | |
| 837 f /= d; | |
| 838 val += i; | |
| 839 } | |
| 434 | 840 return make_int (val); |
| 428 | 841 } |
| 842 #endif /* ! HAVE_FREXP */ | |
| 843 #endif /* ! HAVE_LOGB */ | |
| 844 } | |
| 845 | |
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846 #ifdef WITH_NUMBER_TYPES |
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847 #define ROUNDING_CONVERT(conversion, return_float) \ |
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848 CONVERT_WITH_NUMBER_TYPES(conversion, return_float) |
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849 #else |
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850 #define ROUNDING_CONVERT(conversion, return_float) \ |
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851 CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) |
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852 #endif |
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853 |
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854 #define CONVERT_WITH_NUMBER_TYPES(conversion, return_float) \ |
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855 if (!NILP (divisor)) \ |
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856 { \ |
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857 switch (promote_args (&number, &divisor)) \ |
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858 { \ |
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859 case FIXNUM_T: \ |
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860 return conversion##_two_fixnum (number, divisor, \ |
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861 return_float); \ |
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862 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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863 BIGNUM, \ |
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864 return_float); \ |
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865 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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866 RATIO, \ |
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867 return_float); \ |
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868 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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869 BIGFLOAT, \ |
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870 return_float); \ |
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871 default: /* FLOAT_T */ \ |
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872 return conversion##_two_float (number,divisor, \ |
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873 return_float); \ |
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874 } \ |
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875 } \ |
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876 \ |
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877 /* Try this first, the arg is probably a float: */ \ |
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878 if (FLOATP (number)) \ |
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879 return conversion##_one_float (number, return_float); \ |
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diff
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|
880 \ |
|
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|
881 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
|
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|
882 RATIO, return_float); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
883 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
|
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|
884 BIGFLOAT, return_float); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
885 return conversion##_one_mundane_arg (number, divisor, \ |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
886 return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
887 |
|
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Aidan Kehoe <kehoea@parhasard.net>
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888 #define CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
889 if (!NILP (divisor)) \ |
|
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Aidan Kehoe <kehoea@parhasard.net>
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|
890 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
891 /* The promote_args call if number types are available \ |
|
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|
892 does these conversions, we do them too for symmetry: */\ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
893 if (CHARP (number)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
894 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
895 number = make_int (XCHAR (number)); \ |
|
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|
896 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
897 else if (MARKERP (number)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
898 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
899 number = make_int (marker_position (number)); \ |
|
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|
900 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
901 \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
902 if (CHARP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
903 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
904 divisor = make_int (XCHAR (divisor)); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
905 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
906 else if (MARKERP (divisor)) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
907 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
908 divisor = make_int (marker_position (divisor)); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
909 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
910 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
911 CHECK_INT_OR_FLOAT (divisor); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
912 if (INTP (number) && INTP (divisor)) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
913 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
914 return conversion##_two_fixnum (number, divisor, \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
915 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
916 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
917 else \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
918 { \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
919 return conversion##_two_float (number, divisor, \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
920 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
921 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
922 } \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
923 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
924 /* Try this first, the arg is probably a float: */ \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
925 if (FLOATP (number)) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
926 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
|
927 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
928 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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diff
changeset
|
929 return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
930 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
931 #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
|
932 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
933 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
934 #define MAYBE_TWO_ARGS_BIGNUM(conversion, return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
935 case BIGNUM_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
936 return conversion##_two_bignum (number, divisor, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
937 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
938 #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
|
939 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
|
940 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
|
941 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
942 #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
|
943 #define MAYBE_ONE_ARG_BIGNUM(converse, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
944 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
945 |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
946 #ifdef HAVE_RATIO |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
947 #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
|
948 case RATIO_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
949 return conversion##_two_ratio (number, divisor, return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
950 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
951 #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
|
952 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
|
953 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
|
954 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
955 #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
|
956 #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
|
957 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
958 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
959 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
960 #define MAYBE_TWO_ARGS_BIGFLOAT(conversion, return_float) \ |
|
b5e1d4f6b66f
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Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
961 case BIGFLOAT_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
962 return conversion##_two_bigfloat (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
|
963 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
964 #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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diff
changeset
|
965 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
|
966 return conversion##_one_bigfloat (number, divisor, return_float) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
967 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
968 #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
|
969 #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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970 #endif |
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971 |
|
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972 #define MAYBE_TWO_ARGS_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
|
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973 MAYBE_TWO_ARGS_##upcase(convers, return_float) |
|
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974 |
|
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975 #define MAYBE_ONE_ARG_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
|
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976 MAYBE_ONE_ARG_##upcase(convers, return_float) |
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977 |
|
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978 #endif /* WITH_NUMBER_TYPES */ |
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979 |
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980 #define MAYBE_EFF(str) (return_float ? "f" str : str) |
|
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981 |
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982 /* The WITH_NUMBER_TYPES code calls promote_args, which accepts chars and |
|
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983 markers as equivalent to ints. This block does the same for |
|
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984 single-argument calls. */ |
|
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985 #define MAYBE_CHAR_OR_MARKER(conversion) do { \ |
|
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986 if (CHARP (number)) \ |
|
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987 { \ |
|
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988 return conversion##_one_mundane_arg (make_int (XCHAR (number)), \ |
|
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989 divisor, return_float); \ |
|
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990 } \ |
|
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991 \ |
|
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992 if (MARKERP (number)) \ |
|
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993 { \ |
|
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994 return conversion##_one_mundane_arg (make_int \ |
|
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995 (marker_position(number)), \ |
|
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996 divisor, return_float); \ |
|
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997 } \ |
|
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998 } while (0) |
|
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999 |
|
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|
1000 |
|
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1001 /* The guts of the implementations of the various rounding functions: */ |
|
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1002 |
|
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1003 static Lisp_Object |
|
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1004 ceiling_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
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|
1005 int return_float) |
| 428 | 1006 { |
|
4678
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1007 EMACS_INT i1 = XREALINT (number); |
|
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1008 EMACS_INT i2 = XREALINT (divisor); |
|
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1009 EMACS_INT i3 = 0, i4 = 0; |
|
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|
1010 |
|
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|
1011 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
|
1012 return arith_error2 ("ceiling", number, divisor); |
|
4678
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|
1013 |
|
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|
1014 /* With C89's integer /, the result is implementation-defined if either |
|
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|
1015 operand is negative, so use only nonnegative operands. Here we do |
|
b5e1d4f6b66f
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parents:
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|
1016 basically the opposite of what floor_two_fixnum does, we add one in the |
|
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|
1017 non-negative case: */ |
|
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|
1018 |
|
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|
1019 /* Make sure we use the same signs for the modulus calculation as for the |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1020 quotient calculation: */ |
|
b5e1d4f6b66f
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|
1021 if (i2 < 0) |
|
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|
1022 { |
|
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|
1023 if (i1 <= 0) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1024 { |
|
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|
1025 i3 = -i1 / -i2; |
|
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parents:
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changeset
|
1026 /* Quotient is positive; add one to give the figure for |
|
b5e1d4f6b66f
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parents:
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diff
changeset
|
1027 ceiling. */ |
|
b5e1d4f6b66f
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|
1028 if (0 != (-i1 % -i2)) |
|
b5e1d4f6b66f
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|
1029 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1030 ++i3; |
|
b5e1d4f6b66f
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|
1031 } |
|
b5e1d4f6b66f
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parents:
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|
1032 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1033 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1034 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1035 /* Quotient is negative; no need to add one. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1036 i3 = -(i1 / -i2); |
|
b5e1d4f6b66f
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|
1037 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1038 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1039 else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1040 { |
|
b5e1d4f6b66f
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parents:
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changeset
|
1041 if (i1 < 0) |
|
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|
1042 { |
|
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parents:
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changeset
|
1043 /* Quotient is negative; no need to add one. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1044 i3 = -(-i1 / i2); |
|
b5e1d4f6b66f
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|
1045 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1046 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1047 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1048 i3 = i1 / i2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1049 /* 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
|
1050 ceiling. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1051 if (0 != (i1 % i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1052 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1053 ++i3; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1054 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1055 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1056 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1057 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1058 i4 = i1 - (i3 * i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1059 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1060 if (!return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1061 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1062 return values2 (make_int (i3), make_int (i4)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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1063 } |
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1064 |
|
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1065 return values2 (make_float ((double)i3), |
|
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1066 make_int (i4)); |
|
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1067 } |
|
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1068 |
|
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1069 #ifdef HAVE_BIGNUM |
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1070 static Lisp_Object |
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1071 ceiling_two_bignum (Lisp_Object number, Lisp_Object divisor, |
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1072 int return_float) |
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1073 { |
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1074 Lisp_Object res0, res1; |
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1075 |
|
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1076 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) |
|
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1077 return arith_error2 ("ceiling", number, divisor); |
|
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1078 |
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1079 bignum_ceil (scratch_bignum, XBIGNUM_DATA (number), XBIGNUM_DATA (divisor)); |
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1080 |
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1081 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
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1082 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
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1083 |
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1084 if (bignum_divisible_p (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor))) |
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1085 { |
|
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1086 res1 = Qzero; |
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1087 } |
|
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1088 else |
| 428 | 1089 { |
|
4678
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1090 bignum_mul (scratch_bignum, scratch_bignum, XBIGNUM_DATA (divisor)); |
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1091 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum); |
|
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1092 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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1093 } |
|
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1094 |
|
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1095 return values2 (res0, res1); |
|
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1096 } |
|
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1097 #endif /* HAVE_BIGNUM */ |
|
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1098 |
|
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1099 #ifdef HAVE_RATIO |
|
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1100 static Lisp_Object |
|
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1101 ceiling_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
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1102 int return_float) |
|
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1103 { |
|
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1104 Lisp_Object res0, res1; |
|
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1105 |
|
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|
1106 if (ratio_sign (XRATIO_DATA (divisor)) == 0) |
|
4717
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Jerry James <james@xemacs.org>
parents:
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changeset
|
1107 return arith_error2 ("ceiling", number, divisor); |
|
4678
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|
1108 |
|
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|
1109 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
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|
1110 |
|
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|
1111 bignum_ceil (scratch_bignum, ratio_numerator (scratch_ratio), |
|
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|
1112 ratio_denominator (scratch_ratio)); |
|
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|
1113 |
|
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|
1114 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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|
1115 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1116 |
|
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|
1117 if (bignum_divisible_p (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1118 ratio_denominator (scratch_ratio))) |
|
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|
1119 { |
|
b5e1d4f6b66f
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|
1120 res1 = Qzero; |
|
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|
1121 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1122 else |
|
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|
1123 { |
|
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changeset
|
1124 ratio_set_bignum (scratch_ratio, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1125 ratio_mul (scratch_ratio2, scratch_ratio, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1126 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
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|
1127 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
b5e1d4f6b66f
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changeset
|
1128 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1129 |
|
b5e1d4f6b66f
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|
1130 return values2 (res0, res1); |
|
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|
1131 } |
|
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|
1132 #endif /* HAVE_RATIO */ |
|
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|
1133 |
|
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|
1134 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
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|
1135 static Lisp_Object |
|
b5e1d4f6b66f
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|
1136 ceiling_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1137 int return_float) |
|
b5e1d4f6b66f
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|
1138 { |
|
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|
1139 Lisp_Object res0; |
|
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|
1140 |
|
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changeset
|
1141 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:
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diff
changeset
|
1142 return arith_error2 ("ceiling", number, divisor); |
|
4678
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|
1143 |
|
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changeset
|
1144 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (number), |
|
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|
1145 XBIGFLOAT_GET_PREC (divisor))); |
|
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changeset
|
1146 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
b5e1d4f6b66f
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changeset
|
1147 XBIGFLOAT_DATA (divisor)); |
|
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changeset
|
1148 bigfloat_ceil (scratch_bigfloat, scratch_bigfloat); |
|
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|
1149 |
|
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|
1150 if (return_float) |
|
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|
1151 { |
|
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|
1152 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1153 } |
|
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|
1154 else |
|
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|
1155 { |
|
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|
1156 #ifdef HAVE_BIGNUM |
|
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|
1157 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
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|
1158 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1159 #else |
|
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|
1160 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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|
1161 #endif /* HAVE_BIGNUM */ |
|
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|
1162 } |
|
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|
1163 |
|
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|
1164 bigfloat_mul (scratch_bigfloat, scratch_bigfloat, XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1165 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1166 return values2 (res0, |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1167 Fcanonicalize_number (make_bigfloat_bf (scratch_bigfloat))); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1168 } |
|
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|
1169 #endif /* HAVE_BIGFLOAT */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1170 |
|
b5e1d4f6b66f
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|
1171 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1172 static Lisp_Object |
|
b5e1d4f6b66f
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|
1173 ceiling_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1174 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1175 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1176 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1177 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1178 bignum_ceil (scratch_bignum, XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1179 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1180 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1181 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1182 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1183 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1184 if (bignum_divisible_p (XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1185 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1186 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1187 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1188 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1189 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1190 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1191 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
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
|
1192 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1193 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1194 } |
| 1195 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1196 return values2 (res0, res1); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1197 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1198 #endif /* HAVE_RATIO */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1199 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1200 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1201 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1202 ceiling_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1203 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1204 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1205 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1206 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1207 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); |
|
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
|
1208 bigfloat_ceil (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1209 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1210 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1211 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1212 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1213 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1214 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1215 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1216 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1217 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
|
1218 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1219 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1220 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1221 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1222 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1223 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1224 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:
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diff
changeset
|
1225 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1226 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1227 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1228 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1229 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1230 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1231 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1232 ceiling_two_float (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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changeset
|
1233 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1234 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1235 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1236 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1237 double f0, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1238 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
|
1239 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1240 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
|
1241 return arith_error2 ("ceiling", number, divisor); |
|
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1242 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1243 IN_FLOAT2 (f0 = ceil (f1 / f2), MAYBE_EFF("ceiling"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1244 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF("ceiling"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1245 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1246 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1247 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1248 res0 = make_float(f0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1249 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1250 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1251 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1252 res0 = float_to_int (f0, MAYBE_EFF("ceiling"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1253 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1254 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1255 return values2 (res0, make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1256 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1257 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1258 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1259 ceiling_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
|
1260 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1261 double d, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1262 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1263 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1264 IN_FLOAT ((d = ceil (XFLOAT_DATA (number))), MAYBE_EFF("ceiling"), number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1265 IN_FLOAT ((remain = XFLOAT_DATA (number) - d), MAYBE_EFF("ceiling"), number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1266 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1267 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
|
1268 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1269 res0 = make_float (d); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
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changeset
|
1270 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1271 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1272 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1273 res0 = float_to_int (d, MAYBE_EFF("ceiling"), number, Qunbound); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1274 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1275 return values2 (res0, make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1276 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1277 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1278 EXFUN (Fceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1279 EXFUN (Ffceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1280 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1281 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1282 ceiling_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
|
1283 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1284 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1285 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1286 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1287 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1288 if (INTP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1289 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1290 return values2 (make_float ((double) XINT (number)), Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1291 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1292 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1293 else if (BIGNUMP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1294 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1295 return values2 (make_float |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1296 (bignum_to_double (XBIGNUM_DATA (number))), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1297 Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1298 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1299 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1300 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1301 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1302 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1303 if (INTEGERP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1304 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1305 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1306 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1307 } |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1308 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1309 MAYBE_CHAR_OR_MARKER (ceiling); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1310 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1311 return Ffceiling (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
|
1312 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1313 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1314 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1315 floor_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
|
1316 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1317 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1318 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1319 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1320 EMACS_INT i3 = 0, i4 = 0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1321 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1322 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1323 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
|
1324 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
|
1325 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1326 /* With C89's integer /, the result is implementation-defined if either |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1327 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:
2286
diff
changeset
|
1328 we're forcing the quotient of any negative numbers towards minus |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1329 infinity. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1330 i3 = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1331 ? (i1 <= 0 ? -i1 / -i2 : -1 - ((i1 - 1) / -i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1332 : (i1 < 0 ? -1 - ((-1 - i1) / i2) : i1 / i2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1333 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1334 i4 = i1 - (i3 * i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1335 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1336 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1337 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1338 res0 = make_float ((double)i3); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1339 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1340 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1341 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1342 res0 = make_int (i3); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1343 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1344 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1345 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
|
1346 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1347 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1348 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
diff
changeset
|
1349 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1350 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:
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diff
changeset
|
1351 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1352 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1353 Lisp_Object res0, res1; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1354 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1355 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
|
1356 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1357 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1358 bignum_floor (scratch_bignum, XBIGNUM_DATA (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1359 XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1360 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1361 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1362 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1363 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1364 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1365 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1366 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1367 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1368 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1369 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1370 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:
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diff
changeset
|
1371 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1372 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1373 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1374 else |
|
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 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
|
1377 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
|
1378 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1379 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1380 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1381 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
|
1382 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1383 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1384 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1385 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1386 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1387 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:
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diff
changeset
|
1388 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1389 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1390 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1391 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1392 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
|
1393 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
|
1394 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1395 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
|
1396 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1397 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
|
1398 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1399 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1400 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
|
1401 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
|
1402 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1403 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
|
1404 ratio_denominator (scratch_ratio))) |
|
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 res1 = Qzero; |
|
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 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1409 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1410 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
|
1411 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
|
1412 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
|
1413 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
|
1414 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1415 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1416 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1417 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1418 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1419 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1420 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1421 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1422 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
|
1423 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1424 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1425 Lisp_Object res0; |
|
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 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
|
1428 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
|
1429 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1430 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1431 XBIGFLOAT_GET_PREC (divisor))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1432 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
|
1433 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1434 bigfloat_floor (scratch_bigfloat, scratch_bigfloat); |
|
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 if (return_float) |
|
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 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
|
1439 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1440 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1441 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1442 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1443 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
|
1444 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
|
1445 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1446 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
|
1447 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1448 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1449 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1450 bigfloat_mul (scratch_bigfloat2, scratch_bigfloat, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1451 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1452 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
|
1453 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1454 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
|
1455 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1456 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1457 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1458 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1459 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1460 floor_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
|
1461 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1462 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1463 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1464 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1465 bignum_floor (scratch_bignum, XRATIO_NUMERATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1466 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1467 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1468 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
|
1469 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
|
1470 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1471 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
|
1472 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1473 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1474 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1475 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1476 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1477 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1478 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
|
1479 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
|
1480 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
|
1481 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1482 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1483 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1484 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1485 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1486 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1487 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1488 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1489 floor_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
|
1490 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1491 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1492 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1493 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1494 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
|
1495 bigfloat_floor (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1496 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1497 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1498 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1499 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
|
1500 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1501 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1502 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1503 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1504 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
|
1505 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
|
1506 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1507 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
|
1508 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1509 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1510 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1511 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
|
1512 return values2 (res0, make_bigfloat_bf (scratch_bigfloat2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1513 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1514 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1515 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1516 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1517 floor_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
|
1518 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1519 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1520 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1521 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1522 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
|
1523 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1524 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
|
1525 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
|
1526 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1527 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
|
1528 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
|
1529 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1530 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1531 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1532 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
|
1533 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1534 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1535 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
|
1536 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1537 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1538 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1539 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1540 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
|
1541 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1542 double d, d1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1543 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1544 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
|
1545 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
|
1546 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1547 if (return_float) |
|
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 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
|
1550 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1551 else |
|
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 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
|
1554 make_float (d1)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1555 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1556 } |
|
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 EXFUN (Ffloor, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1559 EXFUN (Fffloor, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1560 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1561 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1562 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
|
1563 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1564 { |
| 1983 | 1565 if (INTEGERP (number)) |
| 1566 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1567 if (return_float) |
|
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 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
|
1570 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1571 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1572 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1573 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1574 } |
| 1983 | 1575 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1576 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1577 MAYBE_CHAR_OR_MARKER (floor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1578 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1579 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1580 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1581 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
|
1582 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1583 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1584 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1585 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
|
1586 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1587 } |
| 1983 | 1588 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1589 /* 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
|
1590 tests/automated/lisp-tests.el. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1591 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
|
1592 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
|
1593 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1594 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1595 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1596 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
|
1597 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1598 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
|
1599 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
|
1600 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1601 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
|
1602 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1603 flooring = hi2 + i1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1604 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1605 floored = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1606 ? (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
|
1607 : (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
|
1608 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1609 flsecond = flooring - (floored * i2); |
| 1983 | 1610 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1611 if (0 == flsecond |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1612 && (i2 == (hi2 + hi2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1613 && (0 != (floored % 2))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1614 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1615 i0 = floored - 1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1616 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
|
1617 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
|
1618 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1619 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1620 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1621 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
|
1622 make_int (floored), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1623 make_int (flsecond - hi2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1624 } |
| 428 | 1625 } |
| 1626 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1627 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1628 static void |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1629 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
|
1630 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
|
1631 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1632 bignum flooring, floored, hi2, flsecond; |
| 428 | 1633 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1634 if (bignum_divisible_p (number, divisor)) |
| 1983 | 1635 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1636 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
|
1637 *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
|
1638 *remain = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1639 return; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1640 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1641 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1642 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
|
1643 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1644 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
|
1645 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1646 bignum_init (hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1647 bignum_set (hi2, scratch_bignum2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1648 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1649 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
|
1650 bignum_init (flooring); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1651 bignum_set (flooring, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1652 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1653 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
|
1654 bignum_init (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1655 bignum_set (floored, scratch_bignum); |
|
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_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
|
1658 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
|
1659 bignum_init (flsecond); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1660 bignum_set (flsecond, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1661 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1662 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
|
1663 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
|
1664 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1665 if (bignum_sign (flsecond) == 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1666 && bignum_eql (divisor, scratch_bignum2) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1667 && (1 == bignum_testbit (floored, 0))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1668 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1669 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
|
1670 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
|
1671 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1672 *remain = make_bignum_bg (hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1673 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1674 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1675 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1676 bignum_sub (scratch_bignum, flsecond, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1677 hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1678 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1679 *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
|
1680 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1681 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1682 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1683 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
|
1684 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
|
1685 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1686 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1687 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1688 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
|
1689 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
|
1690 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1691 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
|
1692 &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1693 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1694 if (return_float) |
|
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 res0 = make_float (bignum_to_double (XBIGNUM_DATA (res0))); |
| 1983 | 1697 } |
| 1698 else | |
| 1699 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1700 res0 = Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1701 } |
|
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 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
|
1704 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1705 #endif /* HAVE_BIGNUM */ |
| 1983 | 1706 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1707 #ifdef HAVE_RATIO |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1708 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1709 round_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1710 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1711 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1712 Lisp_Object res0, res1; |
| 1983 | 1713 |
|
4678
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1714 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>
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|
1715 return arith_error2 ("round", number, divisor); |
| 1983 | 1716 |
|
4678
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|
1717 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
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|
1718 |
|
4678
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1719 round_two_bignum_1 (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1720 ratio_denominator (scratch_ratio), &res0, &res1); |
|
b5e1d4f6b66f
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|
1721 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1722 if (!ZEROP (res1)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
1723 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1724 /* The numerator and denominator don't round exactly, calculate a |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1725 ratio remainder: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1726 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1727 ratio_mul (scratch_ratio, scratch_ratio2, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1728 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>
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|
1729 |
|
4678
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|
1730 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1731 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1732 |
|
b5e1d4f6b66f
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2286
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changeset
|
1733 res0 = return_float ? |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1734 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1735 Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1736 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1737 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
|
1738 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1739 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1740 |
| 1983 | 1741 #ifdef HAVE_BIGFLOAT |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1742 /* 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
|
1743 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1744 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
|
1745 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1746 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1747 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
|
1748 |
| 4828 | 1749 #if 0 |
| 1750 /* This causes the following GCC warning: | |
| 1751 | |
| 1752 /xemacs/latest-fix/src/floatfns.c:1764: warning: dereferencing type-punned pointer will break strict-aliasing rules | |
| 1753 | |
| 1754 and furthermore, it's a useless assert, since `number' is stored on | |
| 1755 the stack and so its address can never be the same as `scratch_bigfloat' | |
| 1756 or `scratch_bigfloat2', which are stored in the data segment. | |
| 1757 | |
| 1758 -- ben */ | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1759 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
|
1760 && (bigfloat *)(&number) != (bigfloat *)(&scratch_bigfloat2)); |
| 4828 | 1761 #endif |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1762 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1763 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
|
1764 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
|
1765 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1766 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
|
1767 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
|
1768 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
|
1769 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
|
1770 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1771 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
|
1772 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
|
1773 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1774 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
|
1775 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1776 do { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1777 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
|
1778 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1779 break; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1780 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1781 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1782 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
|
1783 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1784 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
|
1785 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
|
1786 scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1787 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
|
1788 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
|
1789 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
|
1790 scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1791 if (bigfloat_eql (scratch_bigfloat2, XBIGFLOAT_DATA (res0))) |
| 1995 | 1792 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1793 break; |
| 1995 | 1794 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1795 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1796 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1797 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
|
1798 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1799 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
|
1800 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1801 else |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1806 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
|
1807 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1808 bigfloat_add (XBIGFLOAT_DATA (res0), scratch_bigfloat2, |
|
b5e1d4f6b66f
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|
1809 scratch_bigfloat); |
| 428 | 1810 |
|
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1811 } while (0); |
|
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1812 |
|
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1813 return res0; |
|
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1814 } |
|
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1815 |
|
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|
1816 static Lisp_Object |
|
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1817 round_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
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1818 int return_float) |
|
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|
1819 { |
|
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1820 Lisp_Object res0, res1; |
|
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1821 bigfloat divided; |
|
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1822 |
|
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1823 unsigned long prec = max (XBIGFLOAT_GET_PREC (number), |
|
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|
1824 XBIGFLOAT_GET_PREC (divisor)); |
|
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1825 |
|
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1826 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
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1827 return arith_error2 ("round", number, divisor); |
| 428 | 1828 |
|
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|
1829 bigfloat_init (divided); |
|
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1830 bigfloat_set_prec (divided, prec); |
|
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1831 |
|
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1832 bigfloat_div (divided, XBIGFLOAT_DATA (number), XBIGFLOAT_DATA (divisor)); |
|
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1833 |
|
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|
1834 res0 = round_one_bigfloat_1 (divided); |
|
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|
1835 |
|
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|
1836 bigfloat_set_prec (scratch_bigfloat, prec); |
|
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|
1837 bigfloat_set_prec (scratch_bigfloat2, prec); |
|
4717
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|
1838 |
|
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|
1839 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (res0), |
|
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|
1840 XBIGFLOAT_DATA (divisor)); |
|
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|
1841 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), |
|
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|
1842 scratch_bigfloat); |
|
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|
1843 |
|
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|
1844 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
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|
1845 |
|
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|
1846 if (!return_float) |
| 428 | 1847 { |
|
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|
1848 #ifdef HAVE_BIGNUM |
|
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|
1849 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
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|
1850 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1851 #else |
|
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|
1852 res0 = make_int ((EMACS_INT) bigfloat_to_long (XBIGFLOAT_DATA (res0))); |
|
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|
1853 #endif /* HAVE_BIGNUM */ |
|
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|
1854 } |
|
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|
1855 |
|
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|
1856 return values2 (res0, res1); |
|
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|
1857 } |
|
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|
1858 #endif /* HAVE_BIGFLOAT */ |
|
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|
1859 |
|
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|
1860 #ifdef HAVE_RATIO |
|
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|
1861 static Lisp_Object |
|
b5e1d4f6b66f
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|
1862 round_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
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|
1863 int return_float) |
|
b5e1d4f6b66f
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|
1864 { |
|
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|
1865 Lisp_Object res0, res1; |
|
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|
1866 |
|
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|
1867 round_two_bignum_1 (XRATIO_NUMERATOR (number), XRATIO_DENOMINATOR (number), |
|
b5e1d4f6b66f
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|
1868 &res0, &res1); |
|
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|
1869 |
|
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|
1870 if (!ZEROP (res1)) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1871 { |
|
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|
1872 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
b5e1d4f6b66f
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changeset
|
1873 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
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|
1874 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1875 } |
| 1876 | |
|
4678
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|
1877 res0 = return_float ? |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1878 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1879 Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1880 |
|
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|
1881 return values2 (res0, res1); |
|
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|
1882 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1883 #endif /* HAVE_RATIO */ |
|
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|
1884 |
|
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|
1885 #ifdef HAVE_BIGFLOAT |
|
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|
1886 static Lisp_Object |
|
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|
1887 round_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
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|
1888 int return_float) |
|
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|
1889 { |
|
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|
1890 Lisp_Object res0 = round_one_bigfloat_1 (XBIGFLOAT_DATA (number)); |
|
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|
1891 Lisp_Object res1; |
|
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|
1892 |
|
4717
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|
1893 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
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|
1894 XBIGFLOAT_DATA (res0)); |
|
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|
1895 |
|
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|
1896 res1 = make_bigfloat_bf (scratch_bigfloat); |
|
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|
1897 |
|
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|
1898 if (!return_float) |
|
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|
1899 { |
|
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|
1900 #ifdef HAVE_BIGNUM |
|
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|
1901 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
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|
1902 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
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changeset
|
1903 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1904 res0 = make_int ((EMACS_INT) bigfloat_to_long |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1905 (XBIGFLOAT_DATA (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1906 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1907 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1908 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1909 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1910 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1911 #endif /* HAVE_BIGFLOAT */ |
|
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.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1913 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
|
1914 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
|
1915 int return_float) |
|
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 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1918 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1919 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
|
1920 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1921 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
|
1922 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
|
1923 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1924 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
|
1925 divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1926 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:
2286
diff
changeset
|
1927 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1928 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1929 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1930 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
|
1931 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1932 else |
|
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.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1934 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
|
1935 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1936 } |
| 428 | 1937 } |
| 1938 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1939 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1940 round_one_float (Lisp_Object number, int return_float) |
| 428 | 1941 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1942 double d; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1943 /* Screw the prevailing rounding mode. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1944 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
|
1945 number); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1946 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1947 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1948 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1949 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
|
1950 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1951 else |
| 428 | 1952 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1953 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
|
1954 Qunbound)), |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1955 make_float (XFLOAT_DATA (number) - d)); |
| 428 | 1956 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1957 } |
| 428 | 1958 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1959 EXFUN (Fround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1960 EXFUN (Ffround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1961 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1962 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1963 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
|
1964 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1965 { |
| 1983 | 1966 if (INTEGERP (number)) |
| 1967 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1968 if (return_float) |
| 1983 | 1969 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1970 return values2 (make_float (extract_float (number)), Qzero); |
| 1983 | 1971 } |
| 1972 else | |
| 1973 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1974 return values2 (number, Qzero); |
| 1983 | 1975 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1976 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1977 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1978 MAYBE_CHAR_OR_MARKER (round); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1979 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1980 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1981 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1982 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
|
1983 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1984 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1985 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1986 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
|
1987 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1988 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1989 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1990 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1991 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
|
1992 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1993 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1994 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1995 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1996 EMACS_INT i0; |
|
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 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
|
1999 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
|
2000 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2001 /* 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
|
2002 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
|
2003 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
|
2004 i0 = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2005 ? (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
|
2006 : (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
|
2007 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2008 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2009 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2010 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
|
2011 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2012 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2013 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2014 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
|
2015 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2016 } |
|
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 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2019 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2020 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
|
2021 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2022 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2023 Lisp_Object res0; |
|
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 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
|
2026 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
|
2027 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2028 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
|
2029 XBIGNUM_DATA (divisor)); |
|
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 if (return_float) |
|
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 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
|
2034 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2035 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2036 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2037 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
|
2038 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2039 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2040 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
|
2041 XBIGNUM_DATA (divisor))) |
|
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 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
|
2044 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2045 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2046 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
|
2047 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
|
2048 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2049 return values2 (Fcanonicalize_number (res0), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2050 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
|
2051 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2052 #endif /* HAVE_BIGNUM */ |
|
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 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2055 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2056 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
|
2057 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2058 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2059 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2060 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2061 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
|
2062 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
|
2063 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2064 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
|
2065 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2066 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
|
2067 ratio_denominator (scratch_ratio)); |
|
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 (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2070 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2071 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
|
2072 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2073 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2074 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2075 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
|
2076 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2077 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2078 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
|
2079 ratio_denominator (scratch_ratio))) |
|
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 return values2 (res0, Qzero); |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2084 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
|
2085 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
|
2086 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
|
2087 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2088 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
|
2089 } |
| 1983 | 2090 #endif |
| 2091 | |
| 2092 #ifdef HAVE_BIGFLOAT | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2093 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2094 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
|
2095 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2096 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2097 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2098 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
|
2099 XBIGFLOAT_GET_PREC (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2100 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2101 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
|
2102 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
|
2103 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2104 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
|
2105 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
|
2106 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2107 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
|
2108 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2109 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
|
2110 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2111 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2112 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2113 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
|
2114 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2115 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2116 { |
| 1983 | 2117 #ifdef HAVE_BIGNUM |
| 2118 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
|
2119 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
| 1983 | 2120 #else |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2121 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
| 1983 | 2122 #endif /* HAVE_BIGNUM */ |
| 2123 } | |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2124 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2125 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
|
2126 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
|
2127 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2128 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
|
2129 } |
| 1983 | 2130 #endif /* HAVE_BIGFLOAT */ |
| 2131 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2132 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2133 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2134 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
|
2135 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2136 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2137 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2138 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2139 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
|
2140 return Qzero; |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2141 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2142 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
|
2143 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2144 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2145 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2146 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
|
2147 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2148 else |
|
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 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
|
2151 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2152 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2153 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
|
2154 XRATIO_DENOMINATOR (number))) |
|
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 return values2 (res0, Qzero); |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2159 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
|
2160 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
|
2161 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2162 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
|
2163 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2164 #endif /* HAVE_RATIO */ |
|
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 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2167 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2168 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
|
2169 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2170 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2171 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2172 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2173 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
|
2174 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
|
2175 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
|
2176 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2177 if (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 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
|
2180 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2181 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2182 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2183 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2184 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
|
2185 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
|
2186 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2187 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
|
2188 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2189 } |
|
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 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
|
2192 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2193 return |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2194 values2 (res0, |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2195 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
|
2196 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2197 #endif /* HAVE_BIGFLOAT */ |
|
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 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2200 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
|
2201 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2202 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2203 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2204 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2205 double f0, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2206 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
|
2207 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2208 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
|
2209 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
|
2210 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2211 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
|
2212 f0 = extract_float (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2213 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2214 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
|
2215 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2216 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2217 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2218 res0 = make_float (f0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2219 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2220 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2221 return values2 (res0, make_float (remain)); |
| 428 | 2222 } |
| 2223 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2224 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2225 truncate_one_float (Lisp_Object number, int return_float) |
| 428 | 2226 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2227 Lisp_Object res0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2228 = 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
|
2229 number, Qunbound); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2230 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2231 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2232 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
|
2233 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
|
2234 - XFLOAT_DATA (res0)))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2235 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2236 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2237 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2238 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
|
2239 - XREALINT (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2240 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2241 } |
| 428 | 2242 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2243 EXFUN (Fftruncate, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2244 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2245 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2246 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
|
2247 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2248 { |
| 1983 | 2249 if (INTEGERP (number)) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2250 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2251 if (return_float) |
|
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 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
|
2254 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2255 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2256 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2257 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2258 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2259 } |
| 428 | 2260 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2261 MAYBE_CHAR_OR_MARKER (truncate); |
|
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 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
|
2266 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2267 else |
| 1983 | 2268 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2269 return Ftruncate (wrong_type_argument (Qnumberp, number), divisor); |
| 1983 | 2270 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2271 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2272 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2273 /* 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
|
2274 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2275 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
|
2276 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
|
2277 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2278 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
|
2279 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
|
2280 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2281 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
|
2282 `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
|
2283 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
|
2284 is omitted or one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2285 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2286 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2287 { |
|
5252
378a34562cbe
Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
2288 ROUNDING_CONVERT (ceiling, 0); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2289 } |
| 1983 | 2290 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2291 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
|
2292 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
|
2293 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
|
2294 greater than 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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changeset
|
2295 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2296 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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diff
changeset
|
2297 `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>
parents:
2286
diff
changeset
|
2298 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:
2286
diff
changeset
|
2299 one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2300 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2301 (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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|
2302 { |
|
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Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
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|
2303 ROUNDING_CONVERT (floor, 0); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2304 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2305 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2306 DEFUN ("round", Fround, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2307 Return the nearest integer to NUMBER. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
2308 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
|
2309 is even. |
| 1983 | 2310 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2311 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
|
2312 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
|
2313 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2314 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
|
2315 `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
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changeset
|
2316 in the calculation. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2317 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
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|
2318 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2319 { |
|
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Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
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5191
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|
2320 ROUNDING_CONVERT (round, 0); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2321 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
2322 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2323 DEFUN ("truncate", Ftruncate, 1, 2, 0, /* |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2324 Truncate a floating point number to an integer. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
2325 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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|
2326 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
2327 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
|
2328 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2329 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
|
2330 `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
|
2331 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2332 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2333 { |
|
5252
378a34562cbe
Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
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5191
diff
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|
2334 ROUNDING_CONVERT (truncate, 0); |
| 428 | 2335 } |
| 2336 | |
| 2337 /* Float-rounding functions. */ | |
| 2338 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2339 DEFUN ("fceiling", Ffceiling, 1, 2, 0, /* |
| 444 | 2340 Return the smallest integer no less than NUMBER, as a float. |
| 428 | 2341 \(Round toward +inf.\) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2342 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2343 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
|
2344 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
|
2345 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2346 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
|
2347 the calculation. |
| 428 | 2348 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2349 (number, divisor)) |
| 428 | 2350 { |
|
5252
378a34562cbe
Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
2351 ROUNDING_CONVERT (ceiling, 1); |
| 428 | 2352 } |
| 2353 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2354 DEFUN ("ffloor", Fffloor, 1, 2, 0, /* |
| 444 | 2355 Return the largest integer no greater than NUMBER, as a float. |
| 428 | 2356 \(Round towards -inf.\) |
|
4678
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 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
|
2359 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:
2286
diff
changeset
|
2360 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2361 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
|
2362 the calculation. |
| 428 | 2363 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2364 (number, divisor)) |
| 428 | 2365 { |
|
5252
378a34562cbe
Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
2366 ROUNDING_CONVERT (floor, 1); |
| 428 | 2367 } |
| 2368 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2369 DEFUN ("fround", Ffround, 1, 2, 0, /* |
| 444 | 2370 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
|
2371 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:
2286
diff
changeset
|
2372 even. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2373 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2374 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
|
2375 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
|
2376 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2377 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
|
2378 the calculation. |
| 428 | 2379 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2380 (number, divisor)) |
| 428 | 2381 { |
|
5252
378a34562cbe
Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5191
diff
changeset
|
2382 ROUNDING_CONVERT (round, 1); |
| 428 | 2383 } |
| 2384 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2385 DEFUN ("ftruncate", Fftruncate, 1, 2, 0, /* |
| 428 | 2386 Truncate a floating point number to an integral float value. |
| 2387 Rounds the value toward zero. | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2388 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2389 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:
2286
diff
changeset
|
2390 to an integral float value. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2391 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2392 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
|
2393 the calculation. |
| 428 | 2394 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2395 (number, divisor)) |
| 428 | 2396 { |
|
5252
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Fix style, documentation for rounding functions and multiple values.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
2397 ROUNDING_CONVERT (truncate, 1); |
| 428 | 2398 } |
| 2399 | |
| 2400 #ifdef FLOAT_CATCH_SIGILL | |
| 2401 static SIGTYPE | |
| 2402 float_error (int signo) | |
| 2403 { | |
| 2404 if (! in_float) | |
| 2405 fatal_error_signal (signo); | |
| 2406 | |
| 2407 EMACS_REESTABLISH_SIGNAL (signo, arith_error); | |
| 2408 EMACS_UNBLOCK_SIGNAL (signo); | |
| 2409 | |
| 2410 in_float = 0; | |
| 2411 | |
| 2412 /* Was Fsignal(), but it just doesn't make sense for an error | |
| 2413 occurring inside a signal handler to be restartable, considering | |
| 2414 that anything could happen when the error is signaled and trapped | |
| 2415 and considering the asynchronous nature of signal handlers. */ | |
| 563 | 2416 signal_error (Qarith_error, 0, float_error_arg); |
| 428 | 2417 } |
| 2418 | |
| 2419 /* Another idea was to replace the library function `infnan' | |
| 2420 where SIGILL is signaled. */ | |
| 2421 | |
| 2422 #endif /* FLOAT_CATCH_SIGILL */ | |
| 2423 | |
| 2424 /* In C++, it is impossible to determine what type matherr expects | |
| 2425 without some more configure magic. | |
| 2426 We shouldn't be using matherr anyways - it's a non-standard SYSVism. */ | |
| 2427 #if defined (HAVE_MATHERR) && !defined(__cplusplus) | |
| 2428 int | |
| 2429 matherr (struct exception *x) | |
| 2430 { | |
| 2431 Lisp_Object args; | |
| 2432 if (! in_float) | |
| 2433 /* Not called from emacs-lisp float routines; do the default thing. */ | |
| 2434 return 0; | |
| 2435 | |
| 2436 /* if (!strcmp (x->name, "pow")) x->name = "expt"; */ | |
| 2437 | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
2438 args = Fcons (build_extstring (x->name, Qerror_message_encoding), |
| 428 | 2439 Fcons (make_float (x->arg1), |
| 2440 ((in_float == 2) | |
| 2441 ? Fcons (make_float (x->arg2), Qnil) | |
| 2442 : Qnil))); | |
| 2443 switch (x->type) | |
| 2444 { | |
| 2445 case DOMAIN: Fsignal (Qdomain_error, args); break; | |
| 2446 case SING: Fsignal (Qsingularity_error, args); break; | |
| 2447 case OVERFLOW: Fsignal (Qoverflow_error, args); break; | |
| 2448 case UNDERFLOW: Fsignal (Qunderflow_error, args); break; | |
| 2449 default: Fsignal (Qarith_error, args); break; | |
| 2450 } | |
| 2451 return 1; /* don't set errno or print a message */ | |
| 2452 } | |
| 2453 #endif /* HAVE_MATHERR */ | |
| 2454 | |
| 2455 void | |
| 2456 init_floatfns_very_early (void) | |
| 2457 { | |
| 2458 # ifdef FLOAT_CATCH_SIGILL | |
| 613 | 2459 EMACS_SIGNAL (SIGILL, float_error); |
| 428 | 2460 # endif |
| 2461 in_float = 0; | |
| 2462 } | |
| 2463 | |
| 2464 void | |
| 2465 syms_of_floatfns (void) | |
| 2466 { | |
|
5117
3742ea8250b5
Checking in final CVS version of workspace 'ben-lisp-object'
Ben Wing <ben@xemacs.org>
parents:
2286
diff
changeset
|
2467 INIT_LISP_OBJECT (float); |
| 428 | 2468 |
| 2469 /* Trig functions. */ | |
| 2470 | |
| 2471 DEFSUBR (Facos); | |
| 2472 DEFSUBR (Fasin); | |
| 2473 DEFSUBR (Fatan); | |
| 2474 DEFSUBR (Fcos); | |
| 2475 DEFSUBR (Fsin); | |
| 2476 DEFSUBR (Ftan); | |
| 2477 | |
| 2478 /* Bessel functions */ | |
| 2479 | |
| 2480 #if 0 | |
| 2481 DEFSUBR (Fbessel_y0); | |
| 2482 DEFSUBR (Fbessel_y1); | |
| 2483 DEFSUBR (Fbessel_yn); | |
| 2484 DEFSUBR (Fbessel_j0); | |
| 2485 DEFSUBR (Fbessel_j1); | |
| 2486 DEFSUBR (Fbessel_jn); | |
| 2487 #endif /* 0 */ | |
| 2488 | |
| 2489 /* Error functions. */ | |
| 2490 | |
| 2491 #if 0 | |
| 2492 DEFSUBR (Ferf); | |
| 2493 DEFSUBR (Ferfc); | |
| 2494 DEFSUBR (Flog_gamma); | |
| 2495 #endif /* 0 */ | |
| 2496 | |
| 2497 /* Root and Log functions. */ | |
| 2498 | |
| 2499 DEFSUBR (Fexp); | |
| 2500 DEFSUBR (Fexpt); | |
| 2501 DEFSUBR (Flog); | |
| 2502 DEFSUBR (Flog10); | |
| 2503 DEFSUBR (Fsqrt); | |
| 2504 DEFSUBR (Fcube_root); | |
| 2505 | |
| 2506 /* Inverse trig functions. */ | |
| 2507 | |
| 2508 DEFSUBR (Facosh); | |
| 2509 DEFSUBR (Fasinh); | |
| 2510 DEFSUBR (Fatanh); | |
| 2511 DEFSUBR (Fcosh); | |
| 2512 DEFSUBR (Fsinh); | |
| 2513 DEFSUBR (Ftanh); | |
| 2514 | |
| 2515 /* Rounding functions */ | |
| 2516 | |
| 2517 DEFSUBR (Fabs); | |
| 2518 DEFSUBR (Ffloat); | |
| 2519 DEFSUBR (Flogb); | |
| 2520 DEFSUBR (Fceiling); | |
| 2521 DEFSUBR (Ffloor); | |
| 2522 DEFSUBR (Fround); | |
| 2523 DEFSUBR (Ftruncate); | |
| 2524 | |
| 2525 /* Float-rounding functions. */ | |
| 2526 | |
| 2527 DEFSUBR (Ffceiling); | |
| 2528 DEFSUBR (Fffloor); | |
| 2529 DEFSUBR (Ffround); | |
| 2530 DEFSUBR (Fftruncate); | |
| 2531 } | |
| 2532 | |
| 2533 void | |
| 2534 vars_of_floatfns (void) | |
| 2535 { | |
| 2536 Fprovide (intern ("lisp-float-type")); | |
| 2537 } |