Mercurial > hg > xemacs-beta
annotate src/floatfns.c @ 5258:1ed4cefddd12
Add a couple of extra docstring backslashes, #'format-time-string
2010-09-05 Aidan Kehoe <kehoea@parhasard.net>
* editfns.c (Fformat_time_string):
Use two backslashes so that there is at least one present in the
output of describe function, when describing the Roman month
number syntax in this function's docstring. Thanks for provoking
me to look at this, Stephen Turnbull.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 05 Sep 2010 19:22:37 +0100 |
| 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 } |