Mercurial > hg > xemacs-beta
annotate src/floatfns.c @ 5124:623d57b7fbe8 ben-lisp-object
separate regular and disksave finalization, print method fixes.
Create separate disksave method and make the finalize method only be for
actual object finalization, not disksave finalization.
Fix places where 0 was given in place of a printer -- print methods are
mandatory, and internal objects formerly without a print method now must
explicitly specify internal_object_printer().
Change the defn of CONSOLE_LIVE_P to avoid problems in some weird situations.
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-01-20 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (very_old_free_lcrecord):
* alloc.c (disksave_object_finalization_1):
* alloc.c (make_lcrecord_list):
* alloc.c (alloc_managed_lcrecord):
* alloc.c (free_managed_lcrecord):
* alloc.c (sweep_lcrecords_1):
* buffer.c:
* bytecode.c:
* bytecode.c (Fcompiled_function_p):
* chartab.c:
* console-impl.h:
* console-impl.h (CONSOLE_TYPE_P):
* console.c:
* console.c (set_quit_events):
* data.c:
* data.c (Fmake_ephemeron):
* database.c:
* database.c (finalize_database):
* database.c (Fclose_database):
* device-msw.c:
* device-msw.c (finalize_devmode):
* device-msw.c (allocate_devmode):
* device.c:
* elhash.c:
* elhash.c (finalize_hash_table):
* eval.c:
* eval.c (bind_multiple_value_limits):
* event-stream.c:
* event-stream.c (finalize_command_builder):
* events.c:
* events.c (mark_event):
* extents.c:
* extents.c (finalize_extent_info):
* extents.c (uninit_buffer_extents):
* faces.c:
* file-coding.c:
* file-coding.c (finalize_coding_system):
* file-coding.h:
* file-coding.h (struct coding_system_methods):
* file-coding.h (struct detector):
* floatfns.c:
* floatfns.c (extract_float):
* fns.c:
* fns.c (Fidentity):
* font-mgr.c (finalize_fc_pattern):
* font-mgr.c (finalize_fc_config):
* frame.c:
* glyphs.c:
* glyphs.c (finalize_image_instance):
* glyphs.c (unmap_subwindow_instance_cache_mapper):
* gui.c:
* gui.c (gui_error):
* keymap.c:
* lisp.h (struct Lisp_Symbol):
* lrecord.h:
* lrecord.h (struct lrecord_implementation):
* lrecord.h (MC_ALLOC_CALL_FINALIZER):
* lrecord.h (MC_ALLOC_CALL_FINALIZER_FOR_DISKSAVE):
* lrecord.h (DEFINE_DUMPABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_SIZABLE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_FROB_BLOCK_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_FROB_BLOCK_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_FROB_BLOCK_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_SIZABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_SIZABLE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_FROB_BLOCK_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_FROB_BLOCK_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_SIZABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (MAKE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_SIZABLE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_GENERAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_SIZABLE_GENERAL_LISP_OBJECT):
* lrecord.h (MAKE_MODULE_LISP_OBJECT):
* lstream.c:
* lstream.c (finalize_lstream):
* lstream.c (disksave_lstream):
* marker.c:
* marker.c (finalize_marker):
* mule-charset.c (make_charset):
* number.c:
* objects.c:
* objects.c (finalize_color_instance):
* objects.c (finalize_font_instance):
* opaque.c:
* opaque.c (make_opaque_ptr):
* process-nt.c:
* process-nt.c (nt_finalize_process_data):
* process-nt.c (nt_deactivate_process):
* process.c:
* process.c (finalize_process):
* procimpl.h (struct process_methods):
* scrollbar.c:
* scrollbar.c (free_scrollbar_instance):
* specifier.c (finalize_specifier):
* symbols.c:
* toolbar.c:
* toolbar.c (Ftoolbar_button_p):
* tooltalk.c:
* ui-gtk.c:
* ui-gtk.c (emacs_gtk_object_finalizer):
* ui-gtk.c (allocate_emacs_gtk_boxed_data):
* window.c:
* window.c (finalize_window):
* window.c (mark_window_as_deleted):
Separate out regular and disksave finalization. Instead of a
FOR_DISKSAVE argument to the finalizer, create a separate object
method `disksaver'. Make `finalizer' have only one argument.
Go through and separate out all finalize methods into finalize
and disksave. Delete lots of thereby redundant disksave checking.
Delete places that signal an error if we attempt to disksave --
all of these objects are non-dumpable and we will get an error
from pdump anyway if we attempt to dump them. After this is done,
only one object remains that has a disksave method -- lstream.
Change DEFINE_*_LISP_OBJECT_WITH_PROPS to DEFINE_*_GENERAL_LISP_OBJECT,
which is used for specifying either property methods or disksave
methods (or in the future, any other less-used methods).
Remove the for_disksave argument to finalize_process_data. Don't
provide a disksaver for processes because no one currently needs
it.
Clean up various places where objects didn't provide a print method.
It was made mandatory in previous changes, and all methods now
either provide their own print method or use internal_object_printer
or external_object_printer.
Change the definition of CONSOLE_LIVE_P to use the contype enum
rather than looking into the conmeths structure -- in some weird
situations with dead objects, the conmeths structure is NULL,
and printing such objects from debug_print() will crash if we try
to look into the conmeths structure.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Wed, 20 Jan 2010 07:05:57 -0600 |
| parents | e0db3c197671 |
| children | b5df3737028a |
| rev | line source |
|---|---|
| 428 | 1 /* Primitive operations on floating point for XEmacs Lisp interpreter. |
| 2 Copyright (C) 1988, 1993, 1994 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* Synched up with: FSF 19.30. */ | |
| 22 | |
| 23 /* ANSI C requires only these float functions: | |
| 24 acos, asin, atan, atan2, ceil, cos, cosh, exp, fabs, floor, fmod, | |
| 25 frexp, ldexp, log, log10, modf, pow, sin, sinh, sqrt, tan, tanh. | |
| 26 | |
| 27 Define HAVE_INVERSE_HYPERBOLIC if you have acosh, asinh, and atanh. | |
| 28 Define HAVE_CBRT if you have cbrt(). | |
| 29 Define HAVE_RINT if you have rint(). | |
| 30 If you don't define these, then the appropriate routines will be simulated. | |
| 31 | |
| 32 Define HAVE_MATHERR if on a system supporting the SysV matherr() callback. | |
| 33 (This should happen automatically.) | |
| 34 | |
| 35 Define FLOAT_CHECK_ERRNO if the float library routines set errno. | |
| 36 This has no effect if HAVE_MATHERR is defined. | |
| 37 | |
| 38 Define FLOAT_CATCH_SIGILL if the float library routines signal SIGILL. | |
| 39 (What systems actually do this? Let me know. -jwz) | |
| 40 | |
| 41 Define FLOAT_CHECK_DOMAIN if the float library doesn't handle errors by | |
| 42 either setting errno, or signalling SIGFPE/SIGILL. Otherwise, domain and | |
| 43 range checking will happen before calling the float routines. This has | |
| 44 no effect if HAVE_MATHERR is defined (since matherr will be called when | |
| 45 a domain error occurs). | |
| 46 */ | |
| 47 | |
| 48 #include <config.h> | |
| 49 #include "lisp.h" | |
| 50 #include "syssignal.h" | |
| 51 #include "sysfloat.h" | |
| 52 | |
| 430 | 53 /* The code uses emacs_rint, so that it works to undefine HAVE_RINT |
| 54 if `rint' exists but does not work right. */ | |
| 55 #ifdef HAVE_RINT | |
| 56 #define emacs_rint rint | |
| 57 #else | |
| 428 | 58 static double |
| 430 | 59 emacs_rint (double x) |
| 428 | 60 { |
| 61 double r = floor (x + 0.5); | |
| 62 double diff = fabs (r - x); | |
| 63 /* Round to even and correct for any roundoff errors. */ | |
| 64 if (diff >= 0.5 && (diff > 0.5 || r != 2.0 * floor (r / 2.0))) | |
| 65 r += r < x ? 1.0 : -1.0; | |
| 66 return r; | |
| 67 } | |
| 68 #endif | |
| 69 | |
| 70 /* Nonzero while executing in floating point. | |
| 71 This tells float_error what to do. */ | |
| 72 static int in_float; | |
| 73 | |
| 74 /* If an argument is out of range for a mathematical function, | |
| 75 here is the actual argument value to use in the error message. */ | |
| 76 static Lisp_Object float_error_arg, float_error_arg2; | |
| 442 | 77 static const char *float_error_fn_name; |
| 428 | 78 |
| 79 /* Evaluate the floating point expression D, recording NUM | |
| 80 as the original argument for error messages. | |
| 81 D is normally an assignment expression. | |
| 82 Handle errors which may result in signals or may set errno. | |
| 83 | |
| 84 Note that float_error may be declared to return void, so you can't | |
| 85 just cast the zero after the colon to (SIGTYPE) to make the types | |
| 86 check properly. */ | |
| 87 #ifdef FLOAT_CHECK_ERRNO | |
| 88 #define IN_FLOAT(d, name, num) \ | |
| 89 do { \ | |
| 90 float_error_arg = num; \ | |
| 91 float_error_fn_name = name; \ | |
| 92 in_float = 1; errno = 0; (d); in_float = 0; \ | |
| 93 if (errno != 0) in_float_error (); \ | |
| 94 } while (0) | |
| 95 #define IN_FLOAT2(d, name, num, num2) \ | |
| 96 do { \ | |
| 97 float_error_arg = num; \ | |
| 98 float_error_arg2 = num2; \ | |
| 99 float_error_fn_name = name; \ | |
| 100 in_float = 2; errno = 0; (d); in_float = 0; \ | |
| 101 if (errno != 0) in_float_error (); \ | |
| 102 } while (0) | |
| 103 #else | |
| 104 #define IN_FLOAT(d, name, num) (in_float = 1, (d), in_float = 0) | |
| 105 #define IN_FLOAT2(d, name, num, num2) (in_float = 2, (d), in_float = 0) | |
| 106 #endif | |
| 107 | |
| 108 | |
| 109 #define arith_error(op,arg) \ | |
| 771 | 110 Fsignal (Qarith_error, list2 (build_msg_string (op), arg)) |
|
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parents:
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diff
changeset
|
111 #define arith_error2(op,a1,a2) \ |
|
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Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
112 Fsignal (Qarith_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 113 #define range_error(op,arg) \ |
| 771 | 114 Fsignal (Qrange_error, list2 (build_msg_string (op), arg)) |
| 428 | 115 #define range_error2(op,a1,a2) \ |
| 771 | 116 Fsignal (Qrange_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 117 #define domain_error(op,arg) \ |
| 771 | 118 Fsignal (Qdomain_error, list2 (build_msg_string (op), arg)) |
| 428 | 119 #define domain_error2(op,a1,a2) \ |
| 771 | 120 Fsignal (Qdomain_error, list3 (build_msg_string (op), a1, a2)) |
| 428 | 121 |
| 122 | |
| 123 /* Convert float to Lisp Integer if it fits, else signal a range | |
| 1983 | 124 error using the given arguments. If bignums are available, range errors |
| 125 are never signaled. */ | |
| 428 | 126 static Lisp_Object |
| 2286 | 127 float_to_int (double x, |
| 128 #ifdef HAVE_BIGNUM | |
| 129 const char *UNUSED (name), Lisp_Object UNUSED (num), | |
| 130 Lisp_Object UNUSED (num2) | |
| 131 #else | |
| 132 const char *name, Lisp_Object num, Lisp_Object num2 | |
| 133 #endif | |
| 134 ) | |
| 428 | 135 { |
| 1983 | 136 #ifdef HAVE_BIGNUM |
| 137 bignum_set_double (scratch_bignum, x); | |
| 138 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 139 #else | |
| 2039 | 140 REGISTER EMACS_INT result = (EMACS_INT) x; |
| 141 | |
| 142 if (result > EMACS_INT_MAX || result < EMACS_INT_MIN) | |
| 143 { | |
| 144 if (!UNBOUNDP (num2)) | |
| 145 range_error2 (name, num, num2); | |
| 146 else | |
| 147 range_error (name, num); | |
| 148 } | |
| 149 return make_int (result); | |
| 1983 | 150 #endif /* HAVE_BIGNUM */ |
| 428 | 151 } |
| 152 | |
| 153 | |
| 154 static void | |
| 155 in_float_error (void) | |
| 156 { | |
| 157 switch (errno) | |
| 158 { | |
| 159 case 0: | |
| 160 break; | |
| 161 case EDOM: | |
| 162 if (in_float == 2) | |
| 163 domain_error2 (float_error_fn_name, float_error_arg, float_error_arg2); | |
| 164 else | |
| 165 domain_error (float_error_fn_name, float_error_arg); | |
| 166 break; | |
| 167 case ERANGE: | |
| 168 range_error (float_error_fn_name, float_error_arg); | |
| 169 break; | |
| 170 default: | |
| 171 arith_error (float_error_fn_name, float_error_arg); | |
| 172 break; | |
| 173 } | |
| 174 } | |
| 175 | |
| 176 | |
| 177 static Lisp_Object | |
| 2286 | 178 mark_float (Lisp_Object UNUSED (obj)) |
| 428 | 179 { |
| 180 return Qnil; | |
| 181 } | |
| 182 | |
| 183 static int | |
| 2286 | 184 float_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth)) |
| 428 | 185 { |
| 186 return (extract_float (obj1) == extract_float (obj2)); | |
| 187 } | |
| 188 | |
| 665 | 189 static Hashcode |
| 2286 | 190 float_hash (Lisp_Object obj, int UNUSED (depth)) |
| 428 | 191 { |
| 192 /* mod the value down to 32-bit range */ | |
| 193 /* #### change for 64-bit machines */ | |
| 194 return (unsigned long) fmod (extract_float (obj), 4e9); | |
| 195 } | |
| 196 | |
| 1204 | 197 static const struct memory_description float_description[] = { |
| 428 | 198 { XD_END } |
| 199 }; | |
| 200 | |
|
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201 DEFINE_DUMPABLE_FROB_BLOCK_LISP_OBJECT ("float", float, |
|
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parents:
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changeset
|
202 mark_float, print_float, 0, |
|
623d57b7fbe8
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Ben Wing <ben@xemacs.org>
parents:
5118
diff
changeset
|
203 float_equal, float_hash, |
|
623d57b7fbe8
separate regular and disksave finalization, print method fixes.
Ben Wing <ben@xemacs.org>
parents:
5118
diff
changeset
|
204 float_description, Lisp_Float); |
| 428 | 205 |
| 206 /* Extract a Lisp number as a `double', or signal an error. */ | |
| 207 | |
| 208 double | |
| 209 extract_float (Lisp_Object num) | |
| 210 { | |
| 211 if (FLOATP (num)) | |
| 212 return XFLOAT_DATA (num); | |
| 213 | |
| 214 if (INTP (num)) | |
| 215 return (double) XINT (num); | |
| 216 | |
| 1983 | 217 #ifdef HAVE_BIGNUM |
| 218 if (BIGNUMP (num)) | |
| 219 return bignum_to_double (XBIGNUM_DATA (num)); | |
| 220 #endif | |
| 221 | |
| 222 #ifdef HAVE_RATIO | |
| 223 if (RATIOP (num)) | |
| 224 return ratio_to_double (XRATIO_DATA (num)); | |
| 225 #endif | |
| 226 | |
| 227 #ifdef HAVE_BIGFLOAT | |
| 228 if (BIGFLOATP (num)) | |
| 229 return bigfloat_to_double (XBIGFLOAT_DATA (num)); | |
| 230 #endif | |
| 231 | |
| 428 | 232 return extract_float (wrong_type_argument (Qnumberp, num)); |
| 233 } | |
| 234 | |
| 235 /* Trig functions. */ | |
| 236 | |
| 237 DEFUN ("acos", Facos, 1, 1, 0, /* | |
| 444 | 238 Return the inverse cosine of NUMBER. |
| 428 | 239 */ |
| 444 | 240 (number)) |
| 428 | 241 { |
| 444 | 242 double d = extract_float (number); |
| 428 | 243 #ifdef FLOAT_CHECK_DOMAIN |
| 244 if (d > 1.0 || d < -1.0) | |
| 444 | 245 domain_error ("acos", number); |
| 428 | 246 #endif |
| 444 | 247 IN_FLOAT (d = acos (d), "acos", number); |
| 428 | 248 return make_float (d); |
| 249 } | |
| 250 | |
| 251 DEFUN ("asin", Fasin, 1, 1, 0, /* | |
| 444 | 252 Return the inverse sine of NUMBER. |
| 428 | 253 */ |
| 444 | 254 (number)) |
| 428 | 255 { |
| 444 | 256 double d = extract_float (number); |
| 428 | 257 #ifdef FLOAT_CHECK_DOMAIN |
| 258 if (d > 1.0 || d < -1.0) | |
| 444 | 259 domain_error ("asin", number); |
| 428 | 260 #endif |
| 444 | 261 IN_FLOAT (d = asin (d), "asin", number); |
| 428 | 262 return make_float (d); |
| 263 } | |
| 264 | |
| 265 DEFUN ("atan", Fatan, 1, 2, 0, /* | |
| 444 | 266 Return the inverse tangent of NUMBER. |
| 267 If optional second argument NUMBER2 is provided, | |
| 268 return atan2 (NUMBER, NUMBER2). | |
| 428 | 269 */ |
| 444 | 270 (number, number2)) |
| 428 | 271 { |
| 444 | 272 double d = extract_float (number); |
| 428 | 273 |
| 444 | 274 if (NILP (number2)) |
| 275 IN_FLOAT (d = atan (d), "atan", number); | |
| 428 | 276 else |
| 277 { | |
| 444 | 278 double d2 = extract_float (number2); |
| 428 | 279 #ifdef FLOAT_CHECK_DOMAIN |
| 280 if (d == 0.0 && d2 == 0.0) | |
| 444 | 281 domain_error2 ("atan", number, number2); |
| 428 | 282 #endif |
| 444 | 283 IN_FLOAT2 (d = atan2 (d, d2), "atan", number, number2); |
| 428 | 284 } |
| 285 return make_float (d); | |
| 286 } | |
| 287 | |
| 288 DEFUN ("cos", Fcos, 1, 1, 0, /* | |
| 444 | 289 Return the cosine of NUMBER. |
| 428 | 290 */ |
| 444 | 291 (number)) |
| 428 | 292 { |
| 444 | 293 double d = extract_float (number); |
| 294 IN_FLOAT (d = cos (d), "cos", number); | |
| 428 | 295 return make_float (d); |
| 296 } | |
| 297 | |
| 298 DEFUN ("sin", Fsin, 1, 1, 0, /* | |
| 444 | 299 Return the sine of NUMBER. |
| 428 | 300 */ |
| 444 | 301 (number)) |
| 428 | 302 { |
| 444 | 303 double d = extract_float (number); |
| 304 IN_FLOAT (d = sin (d), "sin", number); | |
| 428 | 305 return make_float (d); |
| 306 } | |
| 307 | |
| 308 DEFUN ("tan", Ftan, 1, 1, 0, /* | |
| 444 | 309 Return the tangent of NUMBER. |
| 428 | 310 */ |
| 444 | 311 (number)) |
| 428 | 312 { |
| 444 | 313 double d = extract_float (number); |
| 428 | 314 double c = cos (d); |
| 315 #ifdef FLOAT_CHECK_DOMAIN | |
| 316 if (c == 0.0) | |
| 444 | 317 domain_error ("tan", number); |
| 428 | 318 #endif |
| 444 | 319 IN_FLOAT (d = (sin (d) / c), "tan", number); |
| 428 | 320 return make_float (d); |
| 321 } | |
| 322 | |
| 323 /* Bessel functions */ | |
| 324 #if 0 /* Leave these out unless we find there's a reason for them. */ | |
| 325 | |
| 326 DEFUN ("bessel-j0", Fbessel_j0, 1, 1, 0, /* | |
| 444 | 327 Return the bessel function j0 of NUMBER. |
| 428 | 328 */ |
| 444 | 329 (number)) |
| 428 | 330 { |
| 444 | 331 double d = extract_float (number); |
| 332 IN_FLOAT (d = j0 (d), "bessel-j0", number); | |
| 428 | 333 return make_float (d); |
| 334 } | |
| 335 | |
| 336 DEFUN ("bessel-j1", Fbessel_j1, 1, 1, 0, /* | |
| 444 | 337 Return the bessel function j1 of NUMBER. |
| 428 | 338 */ |
| 444 | 339 (number)) |
| 428 | 340 { |
| 444 | 341 double d = extract_float (number); |
| 342 IN_FLOAT (d = j1 (d), "bessel-j1", number); | |
| 428 | 343 return make_float (d); |
| 344 } | |
| 345 | |
| 346 DEFUN ("bessel-jn", Fbessel_jn, 2, 2, 0, /* | |
| 444 | 347 Return the order N bessel function output jn of NUMBER. |
| 348 The first number (the order) is truncated to an integer. | |
| 428 | 349 */ |
| 444 | 350 (number1, number2)) |
| 428 | 351 { |
| 444 | 352 int i1 = extract_float (number1); |
| 353 double f2 = extract_float (number2); | |
| 428 | 354 |
| 444 | 355 IN_FLOAT (f2 = jn (i1, f2), "bessel-jn", number1); |
| 428 | 356 return make_float (f2); |
| 357 } | |
| 358 | |
| 359 DEFUN ("bessel-y0", Fbessel_y0, 1, 1, 0, /* | |
| 444 | 360 Return the bessel function y0 of NUMBER. |
| 428 | 361 */ |
| 444 | 362 (number)) |
| 428 | 363 { |
| 444 | 364 double d = extract_float (number); |
| 365 IN_FLOAT (d = y0 (d), "bessel-y0", number); | |
| 428 | 366 return make_float (d); |
| 367 } | |
| 368 | |
| 369 DEFUN ("bessel-y1", Fbessel_y1, 1, 1, 0, /* | |
| 444 | 370 Return the bessel function y1 of NUMBER. |
| 428 | 371 */ |
| 444 | 372 (number)) |
| 428 | 373 { |
| 444 | 374 double d = extract_float (number); |
| 375 IN_FLOAT (d = y1 (d), "bessel-y0", number); | |
| 428 | 376 return make_float (d); |
| 377 } | |
| 378 | |
| 379 DEFUN ("bessel-yn", Fbessel_yn, 2, 2, 0, /* | |
| 444 | 380 Return the order N bessel function output yn of NUMBER. |
| 381 The first number (the order) is truncated to an integer. | |
| 428 | 382 */ |
| 444 | 383 (number1, number2)) |
| 428 | 384 { |
| 444 | 385 int i1 = extract_float (number1); |
| 386 double f2 = extract_float (number2); | |
| 428 | 387 |
| 444 | 388 IN_FLOAT (f2 = yn (i1, f2), "bessel-yn", number1); |
| 428 | 389 return make_float (f2); |
| 390 } | |
| 391 | |
| 392 #endif /* 0 (bessel functions) */ | |
| 393 | |
| 394 /* Error functions. */ | |
| 395 #if 0 /* Leave these out unless we see they are worth having. */ | |
| 396 | |
| 397 DEFUN ("erf", Ferf, 1, 1, 0, /* | |
| 444 | 398 Return the mathematical error function of NUMBER. |
| 428 | 399 */ |
| 444 | 400 (number)) |
| 428 | 401 { |
| 444 | 402 double d = extract_float (number); |
| 403 IN_FLOAT (d = erf (d), "erf", number); | |
| 428 | 404 return make_float (d); |
| 405 } | |
| 406 | |
| 407 DEFUN ("erfc", Ferfc, 1, 1, 0, /* | |
| 444 | 408 Return the complementary error function of NUMBER. |
| 428 | 409 */ |
| 444 | 410 (number)) |
| 428 | 411 { |
| 444 | 412 double d = extract_float (number); |
| 413 IN_FLOAT (d = erfc (d), "erfc", number); | |
| 428 | 414 return make_float (d); |
| 415 } | |
| 416 | |
| 417 DEFUN ("log-gamma", Flog_gamma, 1, 1, 0, /* | |
| 444 | 418 Return the log gamma of NUMBER. |
| 428 | 419 */ |
| 444 | 420 (number)) |
| 428 | 421 { |
| 444 | 422 double d = extract_float (number); |
| 423 IN_FLOAT (d = lgamma (d), "log-gamma", number); | |
| 428 | 424 return make_float (d); |
| 425 } | |
| 426 | |
| 427 #endif /* 0 (error functions) */ | |
| 428 | |
| 429 | |
| 430 /* Root and Log functions. */ | |
| 431 | |
| 432 DEFUN ("exp", Fexp, 1, 1, 0, /* | |
| 444 | 433 Return the exponential base e of NUMBER. |
| 428 | 434 */ |
| 444 | 435 (number)) |
| 428 | 436 { |
| 444 | 437 double d = extract_float (number); |
| 428 | 438 #ifdef FLOAT_CHECK_DOMAIN |
| 439 if (d > 709.7827) /* Assume IEEE doubles here */ | |
| 444 | 440 range_error ("exp", number); |
| 428 | 441 else if (d < -709.0) |
| 442 return make_float (0.0); | |
| 443 else | |
| 444 #endif | |
| 444 | 445 IN_FLOAT (d = exp (d), "exp", number); |
| 428 | 446 return make_float (d); |
| 447 } | |
| 448 | |
| 449 DEFUN ("expt", Fexpt, 2, 2, 0, /* | |
| 444 | 450 Return the exponential NUMBER1 ** NUMBER2. |
| 428 | 451 */ |
| 444 | 452 (number1, number2)) |
| 428 | 453 { |
| 1983 | 454 #ifdef HAVE_BIGNUM |
| 455 if (INTEGERP (number1) && INTP (number2)) | |
| 456 { | |
| 457 if (INTP (number1)) | |
| 458 { | |
| 459 bignum_set_long (scratch_bignum2, XREALINT (number1)); | |
| 460 bignum_pow (scratch_bignum, scratch_bignum2, XREALINT (number2)); | |
| 461 } | |
| 462 else | |
| 463 bignum_pow (scratch_bignum, XBIGNUM_DATA (number1), | |
| 464 XREALINT (number2)); | |
| 465 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 466 } | |
| 467 #endif | |
| 468 | |
| 444 | 469 if (INTP (number1) && /* common lisp spec */ |
| 470 INTP (number2)) /* don't promote, if both are ints */ | |
| 428 | 471 { |
| 472 EMACS_INT retval; | |
| 444 | 473 EMACS_INT x = XINT (number1); |
| 474 EMACS_INT y = XINT (number2); | |
| 428 | 475 |
| 476 if (y < 0) | |
| 477 { | |
| 478 if (x == 1) | |
| 479 retval = 1; | |
| 480 else if (x == -1) | |
| 481 retval = (y & 1) ? -1 : 1; | |
| 482 else | |
| 483 retval = 0; | |
| 484 } | |
| 485 else | |
| 486 { | |
| 487 retval = 1; | |
| 488 while (y > 0) | |
| 489 { | |
| 490 if (y & 1) | |
| 491 retval *= x; | |
| 492 x *= x; | |
| 493 y = (EMACS_UINT) y >> 1; | |
| 494 } | |
| 495 } | |
| 496 return make_int (retval); | |
| 497 } | |
| 498 | |
| 1983 | 499 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_pow) |
| 500 if (BIGFLOATP (number1) && INTEGERP (number2)) | |
| 501 { | |
| 2057 | 502 unsigned long exponent; |
| 1983 | 503 |
| 504 #ifdef HAVE_BIGNUM | |
| 505 if (BIGNUMP (number2)) | |
| 2057 | 506 exponent = bignum_to_ulong (XBIGNUM_DATA (number2)); |
| 1983 | 507 else |
| 508 #endif | |
| 2057 | 509 exponent = XUINT (number2); |
| 1983 | 510 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number1)); |
| 2057 | 511 bigfloat_pow (scratch_bigfloat, XBIGFLOAT_DATA (number1), exponent); |
| 1983 | 512 return make_bigfloat_bf (scratch_bigfloat); |
| 513 } | |
| 514 #endif | |
| 515 | |
| 428 | 516 { |
| 444 | 517 double f1 = extract_float (number1); |
| 518 double f2 = extract_float (number2); | |
| 428 | 519 /* Really should check for overflow, too */ |
| 520 if (f1 == 0.0 && f2 == 0.0) | |
| 521 f1 = 1.0; | |
| 522 # ifdef FLOAT_CHECK_DOMAIN | |
| 523 else if ((f1 == 0.0 && f2 < 0.0) || (f1 < 0 && f2 != floor(f2))) | |
| 444 | 524 domain_error2 ("expt", number1, number2); |
| 428 | 525 # endif /* FLOAT_CHECK_DOMAIN */ |
| 444 | 526 IN_FLOAT2 (f1 = pow (f1, f2), "expt", number1, number2); |
| 428 | 527 return make_float (f1); |
| 528 } | |
| 529 } | |
| 530 | |
| 531 DEFUN ("log", Flog, 1, 2, 0, /* | |
| 444 | 532 Return the natural logarithm of NUMBER. |
| 533 If second optional argument BASE is given, return the logarithm of | |
| 534 NUMBER using that base. | |
| 428 | 535 */ |
| 444 | 536 (number, base)) |
| 428 | 537 { |
| 444 | 538 double d = extract_float (number); |
| 428 | 539 #ifdef FLOAT_CHECK_DOMAIN |
| 540 if (d <= 0.0) | |
| 444 | 541 domain_error2 ("log", number, base); |
| 428 | 542 #endif |
| 543 if (NILP (base)) | |
| 444 | 544 IN_FLOAT (d = log (d), "log", number); |
| 428 | 545 else |
| 546 { | |
| 547 double b = extract_float (base); | |
| 548 #ifdef FLOAT_CHECK_DOMAIN | |
| 549 if (b <= 0.0 || b == 1.0) | |
| 444 | 550 domain_error2 ("log", number, base); |
| 428 | 551 #endif |
| 552 if (b == 10.0) | |
| 444 | 553 IN_FLOAT2 (d = log10 (d), "log", number, base); |
| 428 | 554 else |
| 444 | 555 IN_FLOAT2 (d = (log (d) / log (b)), "log", number, base); |
| 428 | 556 } |
| 557 return make_float (d); | |
| 558 } | |
| 559 | |
| 560 | |
| 561 DEFUN ("log10", Flog10, 1, 1, 0, /* | |
| 444 | 562 Return the logarithm base 10 of NUMBER. |
| 428 | 563 */ |
| 444 | 564 (number)) |
| 428 | 565 { |
| 444 | 566 double d = extract_float (number); |
| 428 | 567 #ifdef FLOAT_CHECK_DOMAIN |
| 568 if (d <= 0.0) | |
| 444 | 569 domain_error ("log10", number); |
| 428 | 570 #endif |
| 444 | 571 IN_FLOAT (d = log10 (d), "log10", number); |
| 428 | 572 return make_float (d); |
| 573 } | |
| 574 | |
| 575 | |
| 576 DEFUN ("sqrt", Fsqrt, 1, 1, 0, /* | |
| 444 | 577 Return the square root of NUMBER. |
| 428 | 578 */ |
| 444 | 579 (number)) |
| 428 | 580 { |
| 1983 | 581 double d; |
| 582 | |
| 583 #if defined(HAVE_BIGFLOAT) && defined(bigfloat_sqrt) | |
| 584 if (BIGFLOATP (number)) | |
| 585 { | |
| 586 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 587 bigfloat_sqrt (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 588 return make_bigfloat_bf (scratch_bigfloat); | |
| 589 } | |
| 590 #endif /* HAVE_BIGFLOAT */ | |
| 591 d = extract_float (number); | |
| 428 | 592 #ifdef FLOAT_CHECK_DOMAIN |
| 593 if (d < 0.0) | |
| 444 | 594 domain_error ("sqrt", number); |
| 428 | 595 #endif |
| 444 | 596 IN_FLOAT (d = sqrt (d), "sqrt", number); |
| 428 | 597 return make_float (d); |
| 598 } | |
| 599 | |
| 600 | |
| 601 DEFUN ("cube-root", Fcube_root, 1, 1, 0, /* | |
| 444 | 602 Return the cube root of NUMBER. |
| 428 | 603 */ |
| 444 | 604 (number)) |
| 428 | 605 { |
| 444 | 606 double d = extract_float (number); |
| 428 | 607 #ifdef HAVE_CBRT |
| 444 | 608 IN_FLOAT (d = cbrt (d), "cube-root", number); |
| 428 | 609 #else |
| 610 if (d >= 0.0) | |
| 444 | 611 IN_FLOAT (d = pow (d, 1.0/3.0), "cube-root", number); |
| 428 | 612 else |
| 444 | 613 IN_FLOAT (d = -pow (-d, 1.0/3.0), "cube-root", number); |
| 428 | 614 #endif |
| 615 return make_float (d); | |
| 616 } | |
| 617 | |
| 618 /* Inverse trig functions. */ | |
| 619 | |
| 620 DEFUN ("acosh", Facosh, 1, 1, 0, /* | |
| 444 | 621 Return the inverse hyperbolic cosine of NUMBER. |
| 428 | 622 */ |
| 444 | 623 (number)) |
| 428 | 624 { |
| 444 | 625 double d = extract_float (number); |
| 428 | 626 #ifdef FLOAT_CHECK_DOMAIN |
| 627 if (d < 1.0) | |
| 444 | 628 domain_error ("acosh", number); |
| 428 | 629 #endif |
| 630 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 631 IN_FLOAT (d = acosh (d), "acosh", number); |
| 428 | 632 #else |
| 444 | 633 IN_FLOAT (d = log (d + sqrt (d*d - 1.0)), "acosh", number); |
| 428 | 634 #endif |
| 635 return make_float (d); | |
| 636 } | |
| 637 | |
| 638 DEFUN ("asinh", Fasinh, 1, 1, 0, /* | |
| 444 | 639 Return the inverse hyperbolic sine of NUMBER. |
| 428 | 640 */ |
| 444 | 641 (number)) |
| 428 | 642 { |
| 444 | 643 double d = extract_float (number); |
| 428 | 644 #ifdef HAVE_INVERSE_HYPERBOLIC |
| 444 | 645 IN_FLOAT (d = asinh (d), "asinh", number); |
| 428 | 646 #else |
| 444 | 647 IN_FLOAT (d = log (d + sqrt (d*d + 1.0)), "asinh", number); |
| 428 | 648 #endif |
| 649 return make_float (d); | |
| 650 } | |
| 651 | |
| 652 DEFUN ("atanh", Fatanh, 1, 1, 0, /* | |
| 444 | 653 Return the inverse hyperbolic tangent of NUMBER. |
| 428 | 654 */ |
| 444 | 655 (number)) |
| 428 | 656 { |
| 444 | 657 double d = extract_float (number); |
| 428 | 658 #ifdef FLOAT_CHECK_DOMAIN |
| 659 if (d >= 1.0 || d <= -1.0) | |
| 444 | 660 domain_error ("atanh", number); |
| 428 | 661 #endif |
| 662 #ifdef HAVE_INVERSE_HYPERBOLIC | |
| 444 | 663 IN_FLOAT (d = atanh (d), "atanh", number); |
| 428 | 664 #else |
| 444 | 665 IN_FLOAT (d = 0.5 * log ((1.0 + d) / (1.0 - d)), "atanh", number); |
| 428 | 666 #endif |
| 667 return make_float (d); | |
| 668 } | |
| 669 | |
| 670 DEFUN ("cosh", Fcosh, 1, 1, 0, /* | |
| 444 | 671 Return the hyperbolic cosine of NUMBER. |
| 428 | 672 */ |
| 444 | 673 (number)) |
| 428 | 674 { |
| 444 | 675 double d = extract_float (number); |
| 428 | 676 #ifdef FLOAT_CHECK_DOMAIN |
| 677 if (d > 710.0 || d < -710.0) | |
| 444 | 678 range_error ("cosh", number); |
| 428 | 679 #endif |
| 444 | 680 IN_FLOAT (d = cosh (d), "cosh", number); |
| 428 | 681 return make_float (d); |
| 682 } | |
| 683 | |
| 684 DEFUN ("sinh", Fsinh, 1, 1, 0, /* | |
| 444 | 685 Return the hyperbolic sine of NUMBER. |
| 428 | 686 */ |
| 444 | 687 (number)) |
| 428 | 688 { |
| 444 | 689 double d = extract_float (number); |
| 428 | 690 #ifdef FLOAT_CHECK_DOMAIN |
| 691 if (d > 710.0 || d < -710.0) | |
| 444 | 692 range_error ("sinh", number); |
| 428 | 693 #endif |
| 444 | 694 IN_FLOAT (d = sinh (d), "sinh", number); |
| 428 | 695 return make_float (d); |
| 696 } | |
| 697 | |
| 698 DEFUN ("tanh", Ftanh, 1, 1, 0, /* | |
| 444 | 699 Return the hyperbolic tangent of NUMBER. |
| 428 | 700 */ |
| 444 | 701 (number)) |
| 428 | 702 { |
| 444 | 703 double d = extract_float (number); |
| 704 IN_FLOAT (d = tanh (d), "tanh", number); | |
| 428 | 705 return make_float (d); |
| 706 } | |
| 707 | |
| 708 /* Rounding functions */ | |
| 709 | |
| 710 DEFUN ("abs", Fabs, 1, 1, 0, /* | |
| 444 | 711 Return the absolute value of NUMBER. |
| 428 | 712 */ |
| 444 | 713 (number)) |
| 428 | 714 { |
| 444 | 715 if (FLOATP (number)) |
| 428 | 716 { |
| 444 | 717 IN_FLOAT (number = make_float (fabs (XFLOAT_DATA (number))), |
| 718 "abs", number); | |
| 719 return number; | |
| 428 | 720 } |
| 721 | |
| 444 | 722 if (INTP (number)) |
| 1983 | 723 #ifdef HAVE_BIGNUM |
| 724 /* The most negative Lisp fixnum will overflow */ | |
| 725 return (XINT (number) >= 0) ? number : make_integer (- XINT (number)); | |
| 726 #else | |
| 444 | 727 return (XINT (number) >= 0) ? number : make_int (- XINT (number)); |
| 1983 | 728 #endif |
| 729 | |
| 730 #ifdef HAVE_BIGNUM | |
| 731 if (BIGNUMP (number)) | |
| 732 { | |
| 733 if (bignum_sign (XBIGNUM_DATA (number)) >= 0) | |
| 734 return number; | |
| 735 bignum_abs (scratch_bignum, XBIGNUM_DATA (number)); | |
| 736 return make_bignum_bg (scratch_bignum); | |
| 737 } | |
| 738 #endif | |
| 739 | |
| 740 #ifdef HAVE_RATIO | |
| 741 if (RATIOP (number)) | |
| 742 { | |
| 743 if (ratio_sign (XRATIO_DATA (number)) >= 0) | |
| 744 return number; | |
| 745 ratio_abs (scratch_ratio, XRATIO_DATA (number)); | |
| 746 return make_ratio_rt (scratch_ratio); | |
| 747 } | |
| 748 #endif | |
| 749 | |
| 750 #ifdef HAVE_BIGFLOAT | |
| 751 if (BIGFLOATP (number)) | |
| 752 { | |
| 753 if (bigfloat_sign (XBIGFLOAT_DATA (number)) >= 0) | |
| 754 return number; | |
| 755 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 756 bigfloat_abs (scratch_bigfloat, XBIGFLOAT_DATA (number)); | |
| 757 return make_bigfloat_bf (scratch_bigfloat); | |
| 758 } | |
| 759 #endif | |
| 428 | 760 |
| 444 | 761 return Fabs (wrong_type_argument (Qnumberp, number)); |
| 428 | 762 } |
| 763 | |
| 764 DEFUN ("float", Ffloat, 1, 1, 0, /* | |
| 444 | 765 Return the floating point number numerically equal to NUMBER. |
| 428 | 766 */ |
| 444 | 767 (number)) |
| 428 | 768 { |
| 444 | 769 if (INTP (number)) |
| 770 return make_float ((double) XINT (number)); | |
| 428 | 771 |
| 1983 | 772 #ifdef HAVE_BIGNUM |
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773 if (BIGNUMP (number)) |
| 1983 | 774 { |
| 775 #ifdef HAVE_BIGFLOAT | |
| 776 if (ZEROP (Vdefault_float_precision)) | |
| 777 #endif | |
| 778 return make_float (bignum_to_double (XBIGNUM_DATA (number))); | |
| 779 #ifdef HAVE_BIGFLOAT | |
| 780 else | |
| 781 { | |
| 782 bigfloat_set_prec (scratch_bigfloat, bigfloat_get_default_prec ()); | |
| 783 bigfloat_set_bignum (scratch_bigfloat, XBIGNUM_DATA (number)); | |
| 784 return make_bigfloat_bf (scratch_bigfloat); | |
| 785 } | |
| 786 #endif /* HAVE_BIGFLOAT */ | |
| 787 } | |
| 788 #endif /* HAVE_BIGNUM */ | |
| 789 | |
| 790 #ifdef HAVE_RATIO | |
| 791 if (RATIOP (number)) | |
| 2092 | 792 return make_float (ratio_to_double (XRATIO_DATA (number))); |
| 1983 | 793 #endif |
| 794 | |
| 444 | 795 if (FLOATP (number)) /* give 'em the same float back */ |
| 796 return number; | |
| 428 | 797 |
| 444 | 798 return Ffloat (wrong_type_argument (Qnumberp, number)); |
| 428 | 799 } |
| 800 | |
| 801 DEFUN ("logb", Flogb, 1, 1, 0, /* | |
| 444 | 802 Return largest integer <= the base 2 log of the magnitude of NUMBER. |
| 428 | 803 This is the same as the exponent of a float. |
| 804 */ | |
| 444 | 805 (number)) |
| 428 | 806 { |
| 444 | 807 double f = extract_float (number); |
| 428 | 808 |
| 809 if (f == 0.0) | |
| 2039 | 810 return make_int (EMACS_INT_MIN); |
| 428 | 811 #ifdef HAVE_LOGB |
| 812 { | |
| 813 Lisp_Object val; | |
| 444 | 814 IN_FLOAT (val = make_int ((EMACS_INT) logb (f)), "logb", number); |
| 434 | 815 return val; |
| 428 | 816 } |
| 817 #else | |
| 818 #ifdef HAVE_FREXP | |
| 819 { | |
| 820 int exqp; | |
| 444 | 821 IN_FLOAT (frexp (f, &exqp), "logb", number); |
| 434 | 822 return make_int (exqp - 1); |
| 428 | 823 } |
| 824 #else | |
| 825 { | |
| 826 int i; | |
| 827 double d; | |
| 828 EMACS_INT val; | |
| 829 if (f < 0.0) | |
| 830 f = -f; | |
| 831 val = -1; | |
| 832 while (f < 0.5) | |
| 833 { | |
| 834 for (i = 1, d = 0.5; d * d >= f; i += i) | |
| 835 d *= d; | |
| 836 f /= d; | |
| 837 val -= i; | |
| 838 } | |
| 839 while (f >= 1.0) | |
| 840 { | |
| 841 for (i = 1, d = 2.0; d * d <= f; i += i) | |
| 842 d *= d; | |
| 843 f /= d; | |
| 844 val += i; | |
| 845 } | |
| 434 | 846 return make_int (val); |
| 428 | 847 } |
| 848 #endif /* ! HAVE_FREXP */ | |
| 849 #endif /* ! HAVE_LOGB */ | |
| 850 } | |
| 851 | |
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852 #ifdef WITH_NUMBER_TYPES |
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853 #define ROUNDING_CONVERT(conversion, return_float) \ |
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854 CONVERT_WITH_NUMBER_TYPES(conversion, return_float) |
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855 #else |
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856 #define ROUNDING_CONVERT(conversion, return_float) \ |
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857 CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) |
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858 #endif |
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859 |
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860 #define CONVERT_WITH_NUMBER_TYPES(conversion, return_float) \ |
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861 if (!NILP (divisor)) \ |
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862 { \ |
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863 switch (promote_args (&number, &divisor)) \ |
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864 { \ |
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865 case FIXNUM_T: \ |
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866 return conversion##_two_fixnum (number, divisor, \ |
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867 return_float); \ |
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868 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
|
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869 BIGNUM, \ |
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870 return_float); \ |
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871 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
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872 RATIO, \ |
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873 return_float); \ |
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874 MAYBE_TWO_ARGS_WITH_NUMBER_TYPES (conversion, \ |
|
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|
875 BIGFLOAT, \ |
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876 return_float); \ |
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877 default: /* FLOAT_T */ \ |
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878 return conversion##_two_float (number,divisor, \ |
|
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879 return_float); \ |
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880 } \ |
|
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881 } \ |
|
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882 \ |
|
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883 /* Try this first, the arg is probably a float: */ \ |
|
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884 if (FLOATP (number)) \ |
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885 return conversion##_one_float (number, return_float); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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886 \ |
|
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887 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
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888 RATIO, return_float); \ |
|
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889 MAYBE_ONE_ARG_WITH_NUMBER_TYPES (conversion, \ |
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|
890 BIGFLOAT, return_float); \ |
|
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891 return conversion##_one_mundane_arg (number, divisor, \ |
|
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892 return_float) |
|
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|
893 |
|
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|
894 #define CONVERT_WITHOUT_NUMBER_TYPES(conversion, return_float) \ |
|
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|
895 if (!NILP (divisor)) \ |
|
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896 { \ |
|
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|
897 /* The promote_args call if number types are available \ |
|
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|
898 does these conversions, we do them too for symmetry: */\ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
899 if (CHARP (number)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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900 { \ |
|
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901 number = make_int (XCHAR (number)); \ |
|
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902 } \ |
|
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|
903 else if (MARKERP (number)) \ |
|
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|
904 { \ |
|
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|
905 number = make_int (marker_position (number)); \ |
|
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|
906 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
907 \ |
|
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|
908 if (CHARP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
909 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
910 divisor = make_int (XCHAR (divisor)); \ |
|
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|
911 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
912 else if (MARKERP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
913 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
914 divisor = make_int (marker_position (divisor)); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
915 } \ |
|
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|
916 \ |
|
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|
917 CHECK_INT_OR_FLOAT (divisor); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
918 if (INTP (number) && INTP (divisor)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
919 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
920 return conversion##_two_fixnum (number, divisor, \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
921 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
922 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
923 else \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
924 { \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
925 return conversion##_two_float (number, divisor, \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
926 return_float); \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
927 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
928 } \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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|
929 \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
930 /* Try this first, the arg is probably a float: */ \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
931 if (FLOATP (number)) \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
932 return conversion##_one_float (number, return_float); \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
933 \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
934 return conversion##_one_mundane_arg (number, divisor, \ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
935 return_float) \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
936 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
937 #ifdef WITH_NUMBER_TYPES |
|
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|
938 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
939 #ifdef HAVE_BIGNUM |
|
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|
940 #define MAYBE_TWO_ARGS_BIGNUM(conversion, return_float) \ |
|
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|
941 case BIGNUM_T: \ |
|
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|
942 return conversion##_two_bignum (number, divisor, return_float) |
|
b5e1d4f6b66f
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|
943 |
|
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|
944 #define MAYBE_ONE_ARG_BIGNUM(converse, return_float) \ |
|
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changeset
|
945 if (BIGNUM_P (number)) \ |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
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diff
changeset
|
946 return conversion##_one_bignum (number, divisor, return_float) |
|
4678
b5e1d4f6b66f
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|
947 #else |
|
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|
948 #define MAYBE_TWO_ARGS_BIGNUM(conversion, return_float) |
|
4717
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Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
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diff
changeset
|
949 #define MAYBE_ONE_ARG_BIGNUM(converse, return_float) |
|
4678
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|
950 #endif |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
951 |
|
4717
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parents:
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diff
changeset
|
952 #ifdef HAVE_RATIO |
|
4678
b5e1d4f6b66f
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changeset
|
953 #define MAYBE_TWO_ARGS_RATIO(conversion, return_float) \ |
|
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changeset
|
954 case RATIO_T: \ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
955 return conversion##_two_ratio (number, divisor, return_float) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
956 |
|
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957 #define MAYBE_ONE_ARG_RATIO(conversion, return_float) \ |
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958 if (RATIOP (number)) \ |
|
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959 return conversion##_one_ratio (number, divisor, return_float) |
|
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960 #else |
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961 #define MAYBE_TWO_ARGS_RATIO(conversion, return_float) |
|
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962 #define MAYBE_ONE_ARG_RATIO(converse, return_float) |
|
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963 #endif |
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964 |
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965 #ifdef HAVE_BIGFLOAT |
|
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966 #define MAYBE_TWO_ARGS_BIGFLOAT(conversion, return_float) \ |
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967 case BIGFLOAT_T: \ |
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968 return conversion##_two_bigfloat (number, divisor, return_float) |
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969 |
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970 #define MAYBE_ONE_ARG_BIGFLOAT(conversion, return_float) \ |
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971 if (BIGFLOATP (number)) \ |
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972 return conversion##_one_bigfloat (number, divisor, return_float) |
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973 #else |
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974 #define MAYBE_TWO_ARGS_BIGFLOAT(conversion, return_float) |
|
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975 #define MAYBE_ONE_ARG_BIGFLOAT(converse, return_float) |
|
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976 #endif |
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977 |
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978 #define MAYBE_TWO_ARGS_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
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979 MAYBE_TWO_ARGS_##upcase(convers, return_float) |
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980 |
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981 #define MAYBE_ONE_ARG_WITH_NUMBER_TYPES(convers, upcase, return_float) \ |
|
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982 MAYBE_ONE_ARG_##upcase(convers, return_float) |
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983 |
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984 #endif /* WITH_NUMBER_TYPES */ |
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985 |
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986 #define MAYBE_EFF(str) (return_float ? "f" str : str) |
|
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987 |
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988 /* The WITH_NUMBER_TYPES code calls promote_args, which accepts chars and |
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989 markers as equivalent to ints. This block does the same for |
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990 single-argument calls. */ |
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991 #define MAYBE_CHAR_OR_MARKER(conversion) do { \ |
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992 if (CHARP (number)) \ |
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993 { \ |
|
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994 return conversion##_one_mundane_arg (make_int (XCHAR (number)), \ |
|
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995 divisor, return_float); \ |
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996 } \ |
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997 \ |
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998 if (MARKERP (number)) \ |
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999 { \ |
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1000 return conversion##_one_mundane_arg (make_int \ |
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1001 (marker_position(number)), \ |
|
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1002 divisor, return_float); \ |
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1003 } \ |
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1004 } while (0) |
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1005 |
|
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1006 |
|
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1007 /* The guts of the implementations of the various rounding functions: */ |
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1008 |
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1009 static Lisp_Object |
|
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1010 ceiling_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
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1011 int return_float) |
| 428 | 1012 { |
|
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1013 EMACS_INT i1 = XREALINT (number); |
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1014 EMACS_INT i2 = XREALINT (divisor); |
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1015 EMACS_INT i3 = 0, i4 = 0; |
|
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|
1016 |
|
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1017 if (i2 == 0) |
|
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1018 return arith_error2 ("ceiling", number, divisor); |
|
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1019 |
|
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1020 /* With C89's integer /, the result is implementation-defined if either |
|
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1021 operand is negative, so use only nonnegative operands. Here we do |
|
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1022 basically the opposite of what floor_two_fixnum does, we add one in the |
|
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1023 non-negative case: */ |
|
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1024 |
|
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1025 /* Make sure we use the same signs for the modulus calculation as for the |
|
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1026 quotient calculation: */ |
|
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1027 if (i2 < 0) |
|
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1028 { |
|
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1029 if (i1 <= 0) |
|
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1030 { |
|
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1031 i3 = -i1 / -i2; |
|
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1032 /* Quotient is positive; add one to give the figure for |
|
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1033 ceiling. */ |
|
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1034 if (0 != (-i1 % -i2)) |
|
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1035 { |
|
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1036 ++i3; |
|
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1037 } |
|
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1038 } |
|
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1039 else |
|
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1040 { |
|
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1041 /* Quotient is negative; no need to add one. */ |
|
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1042 i3 = -(i1 / -i2); |
|
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1043 } |
|
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1044 } |
|
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1045 else |
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1046 { |
|
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|
1047 if (i1 < 0) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1048 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1049 /* Quotient is negative; no need to add one. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1050 i3 = -(-i1 / i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1051 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1052 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
1053 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1054 i3 = i1 / i2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1055 /* Quotient is positive; add one to give the figure for |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1056 ceiling. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1057 if (0 != (i1 % i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1058 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1059 ++i3; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1060 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1061 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1062 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1063 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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2286
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changeset
|
1064 i4 = i1 - (i3 * i2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1065 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1066 if (!return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1067 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1068 return values2 (make_int (i3), make_int (i4)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1069 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1070 |
|
b5e1d4f6b66f
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|
1071 return values2 (make_float ((double)i3), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1072 make_int (i4)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1073 } |
|
b5e1d4f6b66f
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|
1074 |
|
b5e1d4f6b66f
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changeset
|
1075 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1076 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1077 ceiling_two_bignum (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1078 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1079 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1080 Lisp_Object res0, res1; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1081 |
|
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changeset
|
1082 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:
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diff
changeset
|
1083 return arith_error2 ("ceiling", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1084 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1085 bignum_ceil (scratch_bignum, XBIGNUM_DATA (number), XBIGNUM_DATA (divisor)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1086 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1087 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1088 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1089 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1090 if (bignum_divisible_p (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor))) |
|
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parents:
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changeset
|
1091 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1092 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1093 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1094 else |
| 428 | 1095 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1096 bignum_mul (scratch_bignum, scratch_bignum, XBIGNUM_DATA (divisor)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1097 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1098 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1099 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1100 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1101 return values2 (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
|
1102 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1103 #endif /* HAVE_BIGNUM */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1104 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1105 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1106 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1107 ceiling_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1108 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1109 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1110 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
|
1111 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1112 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
|
1113 return arith_error2 ("ceiling", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1114 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1115 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1116 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1117 bignum_ceil (scratch_bignum, ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1118 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1119 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1120 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
|
1121 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
|
1122 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1123 if (bignum_divisible_p (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1124 ratio_denominator (scratch_ratio))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1125 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1126 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1127 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1128 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1129 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1130 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
|
1131 ratio_mul (scratch_ratio2, scratch_ratio, XRATIO_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1132 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1133 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
|
1134 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1135 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1136 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1137 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1138 #endif /* HAVE_RATIO */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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1139 |
|
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1140 #ifdef HAVE_BIGFLOAT |
|
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1141 static Lisp_Object |
|
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1142 ceiling_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
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1143 int return_float) |
|
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1144 { |
|
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1145 Lisp_Object res0; |
|
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1146 |
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1147 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
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1148 return arith_error2 ("ceiling", number, divisor); |
|
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1149 |
|
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1150 bigfloat_set_prec (scratch_bigfloat, max (XBIGFLOAT_GET_PREC (number), |
|
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1151 XBIGFLOAT_GET_PREC (divisor))); |
|
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1152 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
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1153 XBIGFLOAT_DATA (divisor)); |
|
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1154 bigfloat_ceil (scratch_bigfloat, scratch_bigfloat); |
|
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1155 |
|
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1156 if (return_float) |
|
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1157 { |
|
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1158 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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1159 } |
|
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1160 else |
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1161 { |
|
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1162 #ifdef HAVE_BIGNUM |
|
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1163 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
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1164 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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1165 #else |
|
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1166 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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|
1167 #endif /* HAVE_BIGNUM */ |
|
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1168 } |
|
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|
1169 |
|
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|
1170 bigfloat_mul (scratch_bigfloat, scratch_bigfloat, XBIGFLOAT_DATA (divisor)); |
|
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|
1171 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), scratch_bigfloat); |
|
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|
1172 return values2 (res0, |
|
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|
1173 Fcanonicalize_number (make_bigfloat_bf (scratch_bigfloat))); |
|
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1174 } |
|
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1175 #endif /* HAVE_BIGFLOAT */ |
|
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1176 |
|
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|
1177 #ifdef HAVE_RATIO |
|
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|
1178 static Lisp_Object |
|
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|
1179 ceiling_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1180 int return_float) |
|
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|
1181 { |
|
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1182 Lisp_Object res0, res1; |
|
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|
1183 |
|
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|
1184 bignum_ceil (scratch_bignum, XRATIO_NUMERATOR (number), |
|
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|
1185 XRATIO_DENOMINATOR (number)); |
|
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|
1186 |
|
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|
1187 res0 = return_float ? make_float (bignum_to_double (scratch_bignum)) : |
|
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|
1188 Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1189 |
|
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|
1190 if (bignum_divisible_p (XRATIO_NUMERATOR (number), |
|
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|
1191 XRATIO_DENOMINATOR (number))) |
|
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|
1192 { |
|
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|
1193 res1 = Qzero; |
|
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|
1194 } |
|
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|
1195 else |
|
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|
1196 { |
|
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|
1197 ratio_set_bignum (scratch_ratio2, scratch_bignum); |
|
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|
1198 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
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|
1199 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1200 } |
| 1201 | |
|
4678
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|
1202 return values2 (res0, res1); |
|
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|
1203 } |
|
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|
1204 #endif /* HAVE_RATIO */ |
|
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|
1205 |
|
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|
1206 #ifdef HAVE_BIGFLOAT |
|
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|
1207 static Lisp_Object |
|
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|
1208 ceiling_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1209 int return_float) |
|
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|
1210 { |
|
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|
1211 Lisp_Object res0, res1; |
|
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|
1212 |
|
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|
1213 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); |
|
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|
1214 bigfloat_ceil (scratch_bigfloat, XBIGFLOAT_DATA (number)); |
|
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|
1215 |
|
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|
1216 if (return_float) |
|
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|
1217 { |
|
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|
1218 res0 = make_bigfloat_bf (scratch_bigfloat); |
|
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|
1219 } |
|
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|
1220 else |
|
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|
1221 { |
|
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|
1222 #ifdef HAVE_BIGNUM |
|
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|
1223 bignum_set_bigfloat (scratch_bignum, scratch_bigfloat); |
|
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|
1224 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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|
1225 #else |
|
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|
1226 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
|
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|
1227 #endif /* HAVE_BIGNUM */ |
|
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|
1228 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1229 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1230 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
|
1231 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1232 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1233 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1234 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1235 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1236 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1237 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1238 ceiling_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
|
1239 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1240 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1241 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1242 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1243 double f0, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1244 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
|
1245 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1246 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
|
1247 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
|
1248 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1249 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
|
1250 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
|
1251 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1252 if (return_float) |
|
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 res0 = make_float(f0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1255 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1256 else |
|
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 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
|
1259 } |
|
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 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
|
1262 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1263 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1264 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1265 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
|
1266 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1267 double d, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1268 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
|
1269 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1270 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
|
1271 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
|
1272 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1273 if (return_float) |
|
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 res0 = make_float (d); |
|
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 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1278 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1279 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
|
1280 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1281 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
|
1282 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1283 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1284 EXFUN (Fceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1285 EXFUN (Ffceiling, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1286 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1287 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1288 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
|
1289 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1290 { |
|
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 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1293 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1294 if (INTP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1295 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1296 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
|
1297 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1298 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1299 else if (BIGNUMP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1300 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1301 return values2 (make_float |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1302 (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
|
1303 Qzero); |
|
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 #endif |
|
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 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1308 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1309 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1310 if (INTEGERP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1311 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1312 if (INTP (number)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1313 #endif |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1314 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1315 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1316 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1317 } |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1318 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1319 MAYBE_CHAR_OR_MARKER (ceiling); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1320 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1321 return Ffceiling (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1322 } |
|
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|
1323 |
|
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|
1324 static Lisp_Object |
|
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|
1325 floor_two_fixnum (Lisp_Object number, Lisp_Object divisor, |
|
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|
1326 int return_float) |
|
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|
1327 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1328 EMACS_INT i1 = XREALINT (number); |
|
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parents:
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|
1329 EMACS_INT i2 = XREALINT (divisor); |
|
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|
1330 EMACS_INT i3 = 0, i4 = 0; |
|
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|
1331 Lisp_Object res0; |
|
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|
1332 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
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|
1333 if (i2 == 0) |
|
4717
fcc7e89d5e68
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|
1334 return arith_error2 ("floor", number, divisor); |
|
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|
1335 |
|
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|
1336 /* With C89's integer /, the result is implementation-defined if either |
|
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|
1337 operand is negative, so use only nonnegative operands. Notice also that |
|
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|
1338 we're forcing the quotient of any negative numbers towards minus |
|
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|
1339 infinity. */ |
|
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1340 i3 = (i2 < 0 |
|
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1341 ? (i1 <= 0 ? -i1 / -i2 : -1 - ((i1 - 1) / -i2)) |
|
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1342 : (i1 < 0 ? -1 - ((-1 - i1) / i2) : i1 / i2)); |
|
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|
1343 |
|
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1344 i4 = i1 - (i3 * i2); |
|
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1345 |
|
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1346 if (return_float) |
|
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|
1347 { |
|
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|
1348 res0 = make_float ((double)i3); |
|
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|
1349 } |
|
b5e1d4f6b66f
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1350 else |
|
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|
1351 { |
|
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changeset
|
1352 res0 = make_int (i3); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1353 } |
|
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changeset
|
1354 |
|
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|
1355 return values2 (res0, make_int (i4)); |
|
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changeset
|
1356 } |
|
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changeset
|
1357 |
|
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changeset
|
1358 #ifdef HAVE_BIGNUM |
|
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changeset
|
1359 static Lisp_Object |
|
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|
1360 floor_two_bignum (Lisp_Object number, Lisp_Object divisor, |
|
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|
1361 int return_float) |
|
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|
1362 { |
|
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|
1363 Lisp_Object res0, res1; |
|
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|
1364 |
|
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|
1365 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:
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changeset
|
1366 return arith_error2 ("floor", number, divisor); |
|
4678
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|
1367 |
|
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|
1368 bignum_floor (scratch_bignum, XBIGNUM_DATA (number), |
|
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changeset
|
1369 XBIGNUM_DATA (divisor)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1370 |
|
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changeset
|
1371 if (return_float) |
|
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|
1372 { |
|
b5e1d4f6b66f
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|
1373 res0 = make_float (bignum_to_double (scratch_bignum)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1374 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1375 else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1376 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1377 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1378 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1379 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1380 if (bignum_divisible_p (XBIGNUM_DATA (number), XBIGNUM_DATA (divisor))) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1381 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1382 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1383 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1384 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1385 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1386 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:
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diff
changeset
|
1387 bignum_sub (scratch_bignum, XBIGNUM_DATA (number), scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1388 res1 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1389 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1390 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1391 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1392 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1393 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1394 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1395 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1396 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1397 floor_two_ratio (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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changeset
|
1398 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1399 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1400 Lisp_Object res0, res1; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1401 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1402 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
|
1403 return arith_error2 ("floor", number, divisor); |
|
4678
b5e1d4f6b66f
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changeset
|
1404 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1405 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
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changeset
|
1406 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1407 bignum_floor (scratch_bignum, ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1408 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1409 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1410 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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parents:
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diff
changeset
|
1411 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
|
1412 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1413 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
|
1414 ratio_denominator (scratch_ratio))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1415 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1416 res1 = Qzero; |
|
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 else |
|
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 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
|
1421 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
|
1422 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
|
1423 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
|
1424 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1425 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1426 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1427 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1428 #endif /* HAVE_RATIO */ |
|
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 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1431 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1432 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
|
1433 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1434 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1435 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1436 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1437 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
|
1438 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
|
1439 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1440 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
|
1441 XBIGFLOAT_GET_PREC (divisor))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1442 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
|
1443 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1444 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
|
1445 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1446 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1447 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1448 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
|
1449 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1450 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1451 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1452 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1453 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
|
1454 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
|
1455 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1456 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
|
1457 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1458 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1459 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1460 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
|
1461 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1462 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
|
1463 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1464 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
|
1465 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1466 #endif /* HAVE_BIGFLOAT */ |
|
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 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1469 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1470 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
|
1471 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1472 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1473 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1474 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1475 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
|
1476 XRATIO_DENOMINATOR (number)); |
|
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 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
|
1479 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
|
1480 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1481 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
|
1482 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1483 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1484 res1 = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1485 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1486 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1487 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1488 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
|
1489 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
|
1490 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
|
1491 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1492 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1493 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1494 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1495 #endif /* HAVE_RATIO */ |
|
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 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1498 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1499 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
|
1500 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1501 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1502 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1503 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1504 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
|
1505 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
|
1506 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1507 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1508 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1509 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
|
1510 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1511 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1512 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1513 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1514 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
|
1515 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
|
1516 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1517 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
|
1518 #endif /* HAVE_BIGNUM */ |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1521 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
|
1522 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
|
1523 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1524 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1525 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1526 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1527 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
|
1528 int return_float) |
|
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 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1531 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1532 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
|
1533 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1534 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
|
1535 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
|
1536 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1537 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
|
1538 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
|
1539 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1540 if (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 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
|
1543 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1544 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1545 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
|
1546 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1547 } |
|
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 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1550 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
|
1551 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1552 double d, d1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1553 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1554 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
|
1555 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
|
1556 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1557 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1558 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1559 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
|
1560 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1561 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1562 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1563 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
|
1564 make_float (d1)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1565 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1566 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1567 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1568 EXFUN (Ffloor, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1569 EXFUN (Fffloor, 2); |
|
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 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1572 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
|
1573 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1574 { |
| 1983 | 1575 #ifdef HAVE_BIGNUM |
| 1576 if (INTEGERP (number)) | |
| 1577 #else | |
| 444 | 1578 if (INTP (number)) |
| 1983 | 1579 #endif |
| 1580 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1581 if (return_float) |
|
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 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
|
1584 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1585 else |
|
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 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1588 } |
| 1983 | 1589 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1590 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1591 MAYBE_CHAR_OR_MARKER (floor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1592 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1593 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1594 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1595 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
|
1596 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1597 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1598 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1599 return Ffloor (wrong_type_argument (Qnumberp, number), divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1600 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1601 } |
| 1983 | 1602 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1603 /* Algorithm taken from cl-extra.el, now to be found as cl-round in |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1604 tests/automated/lisp-tests.el. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1605 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
|
1606 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>
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2286
diff
changeset
|
1607 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1608 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1609 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1610 EMACS_INT i0, hi2, flooring, floored, flsecond; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1611 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1612 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
|
1613 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1614 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1615 hi2 = i2 < 0 ? -( -i2 / 2) : i2 / 2; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1616 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1617 flooring = hi2 + i1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1618 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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2286
diff
changeset
|
1619 floored = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1620 ? (flooring <= 0 ? -flooring / -i2 : -1 - ((flooring - 1) / -i2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1621 : (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
|
1622 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1623 flsecond = flooring - (floored * i2); |
| 1983 | 1624 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1625 if (0 == flsecond |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1626 && (i2 == (hi2 + hi2)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1627 && (0 != (floored % 2))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1628 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1629 i0 = floored - 1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1630 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
|
1631 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
|
1632 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1633 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1634 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1635 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
|
1636 make_int (floored), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1637 make_int (flsecond - hi2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1638 } |
| 428 | 1639 } |
| 1640 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1641 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1642 static void |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1643 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
|
1644 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
|
1645 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1646 bignum flooring, floored, hi2, flsecond; |
| 428 | 1647 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1648 if (bignum_divisible_p (number, divisor)) |
| 1983 | 1649 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1650 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
|
1651 *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
|
1652 *remain = Qzero; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1653 return; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1654 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1655 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1656 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
|
1657 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1658 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
|
1659 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1660 bignum_init (hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1661 bignum_set (hi2, scratch_bignum2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1662 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1663 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
|
1664 bignum_init (flooring); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1665 bignum_set (flooring, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1666 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1667 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
|
1668 bignum_init (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1669 bignum_set (floored, scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1670 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1671 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
|
1672 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
|
1673 bignum_init (flsecond); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1674 bignum_set (flsecond, scratch_bignum); |
|
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_set_long (scratch_bignum, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1677 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
|
1678 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1679 if (bignum_sign (flsecond) == 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1680 && bignum_eql (divisor, scratch_bignum2) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1681 && (1 == bignum_testbit (floored, 0))) |
|
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 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
|
1684 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
|
1685 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1686 *remain = make_bignum_bg (hi2); |
|
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 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1689 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1690 bignum_sub (scratch_bignum, flsecond, |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1691 hi2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1692 *res = make_bignum_bg (floored); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1693 *remain = make_bignum_bg (scratch_bignum); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
1694 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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diff
changeset
|
1695 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1696 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1697 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
|
1698 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
|
1699 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
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|
1700 Lisp_Object res0, res1; |
|
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
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|
1702 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
|
1703 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1704 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1705 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
|
1706 &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1707 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1708 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1709 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1710 res0 = make_float (bignum_to_double (XBIGNUM_DATA (res0))); |
| 1983 | 1711 } |
| 1712 else | |
| 1713 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1714 res0 = Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1715 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1716 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1717 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
|
1718 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1719 #endif /* HAVE_BIGNUM */ |
| 1983 | 1720 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1721 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1722 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1723 round_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
|
1724 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1725 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1726 Lisp_Object res0, res1; |
| 1983 | 1727 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1728 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
|
1729 return arith_error2 ("round", number, divisor); |
| 1983 | 1730 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1731 ratio_div (scratch_ratio, XRATIO_DATA (number), XRATIO_DATA (divisor)); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1732 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1733 round_two_bignum_1 (ratio_numerator (scratch_ratio), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1734 ratio_denominator (scratch_ratio), &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1735 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1736 if (!ZEROP (res1)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1737 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1738 /* The numerator and denominator don't round exactly, calculate a |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1739 ratio remainder: */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1740 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1741 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
|
1742 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1743 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1744 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
|
1745 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1746 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1747 res0 = return_float ? |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1748 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1749 Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1750 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1751 return values2 (res0, res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1752 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1753 #endif /* HAVE_RATIO */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1754 |
| 1983 | 1755 #ifdef HAVE_BIGFLOAT |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1756 /* 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
|
1757 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1758 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
|
1759 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1760 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1761 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
|
1762 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1763 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
|
1764 && (bigfloat *)(&number) != (bigfloat *)(&scratch_bigfloat2)); |
|
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_prec (scratch_bigfloat, prec); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1767 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
|
1768 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1769 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
|
1770 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
|
1771 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
|
1772 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
|
1773 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1774 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
|
1775 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
|
1776 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1777 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
|
1778 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1779 do { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1780 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
|
1781 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1782 break; |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1785 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
|
1786 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1787 bigfloat_set_double (scratch_bigfloat2, 2.0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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|
1788 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (res0), |
|
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|
1789 scratch_bigfloat2); |
|
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|
1790 bigfloat_floor (scratch_bigfloat2, scratch_bigfloat); |
|
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|
1791 bigfloat_set_double (scratch_bigfloat, 2.0); |
|
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|
1792 bigfloat_mul (scratch_bigfloat2, scratch_bigfloat2, |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1793 scratch_bigfloat); |
|
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|
1794 if (bigfloat_eql (scratch_bigfloat2, XBIGFLOAT_DATA (res0))) |
| 1995 | 1795 { |
|
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|
1796 break; |
| 1995 | 1797 } |
|
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|
1798 } |
|
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|
1799 |
|
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|
1800 if (bigfloat_lt (XBIGFLOAT_DATA (res0), number)) |
|
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|
1801 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1802 bigfloat_set_double (scratch_bigfloat2, 1.0); |
|
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|
1803 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1804 else |
|
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|
1805 { |
|
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|
1806 bigfloat_set_double (scratch_bigfloat2, -1.0); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1807 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1808 |
|
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|
1809 bigfloat_set (scratch_bigfloat, XBIGFLOAT_DATA (res0)); |
|
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|
1810 |
|
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|
1811 bigfloat_add (XBIGFLOAT_DATA (res0), scratch_bigfloat2, |
|
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|
1812 scratch_bigfloat); |
| 428 | 1813 |
|
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|
1814 } while (0); |
|
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|
1815 |
|
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|
1816 return res0; |
|
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|
1817 } |
|
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|
1818 |
|
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|
1819 static Lisp_Object |
|
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|
1820 round_two_bigfloat (Lisp_Object number, Lisp_Object divisor, |
|
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|
1821 int return_float) |
|
b5e1d4f6b66f
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|
1822 { |
|
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|
1823 Lisp_Object res0, res1; |
|
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|
1824 bigfloat divided; |
|
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|
1825 |
|
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|
1826 unsigned long prec = max (XBIGFLOAT_GET_PREC (number), |
|
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|
1827 XBIGFLOAT_GET_PREC (divisor)); |
|
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|
1828 |
|
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|
1829 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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|
1830 return arith_error2 ("round", number, divisor); |
| 428 | 1831 |
|
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|
1832 bigfloat_init (divided); |
|
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|
1833 bigfloat_set_prec (divided, prec); |
|
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|
1834 |
|
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|
1835 bigfloat_div (divided, XBIGFLOAT_DATA (number), XBIGFLOAT_DATA (divisor)); |
|
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|
1836 |
|
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|
1837 res0 = round_one_bigfloat_1 (divided); |
|
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|
1838 |
|
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changeset
|
1839 bigfloat_set_prec (scratch_bigfloat, prec); |
|
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parents:
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changeset
|
1840 bigfloat_set_prec (scratch_bigfloat2, prec); |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
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|
1841 |
|
4678
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|
1842 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (res0), |
|
b5e1d4f6b66f
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changeset
|
1843 XBIGFLOAT_DATA (divisor)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1844 bigfloat_sub (scratch_bigfloat2, XBIGFLOAT_DATA (number), |
|
b5e1d4f6b66f
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changeset
|
1845 scratch_bigfloat); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1846 |
|
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|
1847 res1 = make_bigfloat_bf (scratch_bigfloat2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1848 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1849 if (!return_float) |
| 428 | 1850 { |
|
4678
b5e1d4f6b66f
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2286
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|
1851 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1852 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1853 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1854 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1855 res0 = make_int ((EMACS_INT) bigfloat_to_long (XBIGFLOAT_DATA (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1856 #endif /* HAVE_BIGNUM */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1857 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1858 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1859 return values2 (res0, res1); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1860 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1861 #endif /* HAVE_BIGFLOAT */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1862 |
|
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|
1863 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
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changeset
|
1864 static Lisp_Object |
|
b5e1d4f6b66f
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changeset
|
1865 round_one_ratio (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1866 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1867 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1868 Lisp_Object res0, res1; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1869 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1870 round_two_bignum_1 (XRATIO_NUMERATOR (number), XRATIO_DENOMINATOR (number), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1871 &res0, &res1); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1872 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1873 if (!ZEROP (res1)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1874 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1875 ratio_set_bignum (scratch_ratio2, XBIGNUM_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1876 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio2); |
|
b5e1d4f6b66f
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parents:
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changeset
|
1877 res1 = Fcanonicalize_number (make_ratio_rt (scratch_ratio)); |
| 428 | 1878 } |
| 1879 | |
|
4678
b5e1d4f6b66f
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changeset
|
1880 res0 = return_float ? |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1881 make_float ((double)bignum_to_double(XBIGNUM_DATA (res0))) : |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1882 Fcanonicalize_number (res0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1883 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1884 return values2 (res0, res1); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1885 } |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1886 #endif /* HAVE_RATIO */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1887 |
|
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|
1888 #ifdef HAVE_BIGFLOAT |
|
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|
1889 static Lisp_Object |
|
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|
1890 round_one_bigfloat (Lisp_Object number, Lisp_Object UNUSED (divisor), |
|
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|
1891 int return_float) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1892 { |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1893 Lisp_Object res0 = round_one_bigfloat_1 (XBIGFLOAT_DATA (number)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1894 Lisp_Object res1; |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1895 |
|
4717
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parents:
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|
1896 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1897 XBIGFLOAT_DATA (res0)); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1898 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1899 res1 = make_bigfloat_bf (scratch_bigfloat); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1900 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1901 if (!return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1902 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1903 #ifdef HAVE_BIGNUM |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1904 bignum_set_bigfloat (scratch_bignum, XBIGFLOAT_DATA (res0)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1905 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1906 #else |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1907 res0 = make_int ((EMACS_INT) bigfloat_to_long |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1908 (XBIGFLOAT_DATA (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1909 #endif /* HAVE_BIGNUM */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1910 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1911 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1912 return values2 (res0, res1); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1913 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1914 #endif /* HAVE_BIGFLOAT */ |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1915 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1916 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1917 round_two_float (Lisp_Object number, Lisp_Object divisor, |
|
b5e1d4f6b66f
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|
1918 int return_float) |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1919 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1920 double f1 = extract_float (number); |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1921 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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changeset
|
1922 double f0, remain; |
|
4717
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Properly handle continuable divide-by-zero errors. Fix truncation of a
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parents:
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changeset
|
1923 |
|
4678
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changeset
|
1924 if (f2 == 0.0) |
|
4717
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Properly handle continuable divide-by-zero errors. Fix truncation of a
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parents:
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changeset
|
1925 return arith_error2 ("round", number, divisor); |
|
4678
b5e1d4f6b66f
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parents:
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changeset
|
1926 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1927 IN_FLOAT2 ((f0 = emacs_rint (f1 / f2)), MAYBE_EFF ("round"), number, |
|
4717
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Properly handle continuable divide-by-zero errors. Fix truncation of a
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parents:
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diff
changeset
|
1928 divisor); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1929 IN_FLOAT2 (remain = f1 - (f0 * f2), MAYBE_EFF ("round"), number, divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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|
1930 |
|
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1931 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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|
1932 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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diff
changeset
|
1933 return values2 (make_float (f0), make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
1934 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1935 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
1936 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
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changeset
|
1937 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
|
1938 make_float (remain)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1939 } |
| 428 | 1940 } |
| 1941 | |
|
4678
b5e1d4f6b66f
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Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1942 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1943 round_one_float (Lisp_Object number, int return_float) |
| 428 | 1944 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1945 double d; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1946 /* Screw the prevailing rounding mode. */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1947 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
|
1948 number); |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1949 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1950 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1951 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1952 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
|
1953 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1954 else |
| 428 | 1955 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1956 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
|
1957 Qunbound)), |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1958 make_float (XFLOAT_DATA (number) - d)); |
| 428 | 1959 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1960 } |
| 428 | 1961 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1962 EXFUN (Fround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1963 EXFUN (Ffround, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1964 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1965 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
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parents:
2286
diff
changeset
|
1966 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
|
1967 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1968 { |
| 1983 | 1969 #ifdef HAVE_BIGNUM |
| 1970 if (INTEGERP (number)) | |
| 1971 #else | |
| 444 | 1972 if (INTP (number)) |
| 1983 | 1973 #endif |
| 1974 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1975 if (return_float) |
| 1983 | 1976 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1977 return values2 (make_float (extract_float (number)), Qzero); |
| 1983 | 1978 } |
| 1979 else | |
| 1980 { | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1981 return values2 (number, Qzero); |
| 1983 | 1982 } |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1985 MAYBE_CHAR_OR_MARKER (round); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1986 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1987 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1988 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1989 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
|
1990 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1991 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1992 { |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
1993 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
|
1994 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1995 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1996 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1997 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
1998 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
|
1999 int return_float) |
|
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 EMACS_INT i1 = XREALINT (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2002 EMACS_INT i2 = XREALINT (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2003 EMACS_INT i0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2004 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2005 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
|
2006 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
|
2007 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2008 /* 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
|
2009 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
|
2010 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
|
2011 i0 = (i2 < 0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2012 ? (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
|
2013 : (i1 < 0 ? -(-i1 / i2) : i1 / i2)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2014 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2015 if (return_float) |
|
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 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
|
2018 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2019 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2020 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2021 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
|
2022 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2023 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2024 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2025 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2026 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2027 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
|
2028 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2029 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2030 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2031 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2032 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
|
2033 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
|
2034 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2035 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
|
2036 XBIGNUM_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2037 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2038 if (return_float) |
|
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 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
|
2041 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2042 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2043 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2044 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
|
2045 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2046 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2047 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
|
2048 XBIGNUM_DATA (divisor))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2049 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2050 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
|
2051 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2052 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2053 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
|
2054 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
|
2055 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2056 return values2 (Fcanonicalize_number (res0), |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2057 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
|
2058 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2059 #endif /* HAVE_BIGNUM */ |
|
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 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2062 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2063 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
|
2064 int return_float) |
|
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 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2067 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2068 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
|
2069 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
|
2070 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2071 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
|
2072 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2073 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
|
2074 ratio_denominator (scratch_ratio)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2075 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2076 if (return_float) |
|
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 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
|
2079 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2080 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2081 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2082 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
|
2083 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2084 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2085 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
|
2086 ratio_denominator (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, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2089 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2090 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2091 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
|
2092 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
|
2093 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
|
2094 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2095 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
|
2096 } |
| 1983 | 2097 #endif |
| 2098 | |
| 2099 #ifdef HAVE_BIGFLOAT | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2100 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2101 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
|
2102 int return_float) |
|
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 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2105 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
|
2106 XBIGFLOAT_GET_PREC (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2107 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2108 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
|
2109 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
|
2110 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2111 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
|
2112 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
|
2113 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2114 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
|
2115 XBIGFLOAT_DATA (divisor)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2116 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
|
2117 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2118 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2119 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2120 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
|
2121 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2122 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2123 { |
| 1983 | 2124 #ifdef HAVE_BIGNUM |
| 2125 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
|
2126 res0 = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); |
| 1983 | 2127 #else |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2128 res0 = make_int ((EMACS_INT) bigfloat_to_long (scratch_bigfloat)); |
| 1983 | 2129 #endif /* HAVE_BIGNUM */ |
| 2130 } | |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2131 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2132 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
|
2133 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
|
2134 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2135 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
|
2136 } |
| 1983 | 2137 #endif /* HAVE_BIGFLOAT */ |
| 2138 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2139 #ifdef HAVE_RATIO |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2140 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2141 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
|
2142 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2143 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2144 Lisp_Object res0; |
|
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 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
|
2147 return Qzero; |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2148 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2149 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
|
2150 XRATIO_DENOMINATOR (number)); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2151 if (return_float) |
|
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 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
|
2154 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2155 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2156 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2157 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
|
2158 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2159 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2160 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
|
2161 XRATIO_DENOMINATOR (number))) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2162 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2163 return values2 (res0, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2164 } |
|
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 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
|
2167 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
|
2168 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2169 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
|
2170 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2171 #endif /* HAVE_RATIO */ |
|
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 #ifdef HAVE_BIGFLOAT |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2174 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2175 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
|
2176 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2177 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2178 Lisp_Object res0; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2179 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2180 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
|
2181 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
|
2182 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
|
2183 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2184 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2185 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2186 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
|
2187 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2188 else |
|
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 #ifdef HAVE_BIGNUM |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2191 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
|
2192 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
|
2193 #else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2194 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
|
2195 #endif /* HAVE_BIGNUM */ |
|
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 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2198 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
|
2199 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2200 return |
|
4717
fcc7e89d5e68
Properly handle continuable divide-by-zero errors. Fix truncation of a
Jerry James <james@xemacs.org>
parents:
4678
diff
changeset
|
2201 values2 (res0, |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2202 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
|
2203 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2204 #endif /* HAVE_BIGFLOAT */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2205 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2206 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2207 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
|
2208 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2209 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2210 double f1 = extract_float (number); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2211 double f2 = extract_float (divisor); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2212 double f0, remain; |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2213 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
|
2214 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2215 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
|
2216 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
|
2217 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2218 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
|
2219 f0 = extract_float (res0); |
|
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 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
|
2222 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2223 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2224 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2225 res0 = make_float (f0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2226 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2227 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2228 return values2 (res0, make_float (remain)); |
| 428 | 2229 } |
| 2230 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2231 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2232 truncate_one_float (Lisp_Object number, int return_float) |
| 428 | 2233 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2234 Lisp_Object res0 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2235 = 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
|
2236 number, Qunbound); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2237 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2238 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2239 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
|
2240 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
|
2241 - XFLOAT_DATA (res0)))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2242 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2243 else |
|
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 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
|
2246 - XREALINT (res0))); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2247 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2248 } |
| 428 | 2249 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2250 EXFUN (Fftruncate, 2); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2251 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2252 static Lisp_Object |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2253 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
|
2254 int return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2255 { |
| 1983 | 2256 #ifdef HAVE_BIGNUM |
| 2257 if (INTEGERP (number)) | |
| 2258 #else | |
| 444 | 2259 if (INTP (number)) |
| 1983 | 2260 #endif |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2261 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2262 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2263 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2264 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
|
2265 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2266 else |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2267 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2268 return values2 (number, Qzero); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2269 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2270 } |
| 428 | 2271 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2272 MAYBE_CHAR_OR_MARKER (truncate); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2273 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2274 if (return_float) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2275 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2276 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
|
2277 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2278 else |
| 1983 | 2279 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2280 return Ftruncate (wrong_type_argument (Qnumberp, number), divisor); |
| 1983 | 2281 } |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2282 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2283 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2284 /* 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
|
2285 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2286 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
|
2287 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
|
2288 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2289 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
|
2290 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
|
2291 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2292 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
|
2293 `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
|
2294 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
|
2295 is omitted or one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2296 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2297 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2298 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2299 ROUNDING_CONVERT(ceiling, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2300 } |
| 1983 | 2301 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2302 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
|
2303 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
|
2304 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
|
2305 greater than the quotient of NUMBER and DIVISOR. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2306 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2307 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
|
2308 `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
|
2309 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
|
2310 one. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2311 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2312 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2313 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2314 ROUNDING_CONVERT(floor, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2315 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2316 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2317 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
|
2318 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
|
2319 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
|
2320 is even. |
| 1983 | 2321 |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2322 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
|
2323 divided by DIVISOR. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2324 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2325 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
|
2326 `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
|
2327 in the calculation. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2328 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2329 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2330 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2331 ROUNDING_CONVERT(round, 0); |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2332 } |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2333 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2334 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
|
2335 Truncate a floating point number to an integer. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2336 Rounds the value toward zero. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2337 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2338 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:
2286
diff
changeset
|
2339 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2340 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
|
2341 `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
|
2342 */ |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2343 (number, divisor)) |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2344 { |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2345 ROUNDING_CONVERT(truncate, 0); |
| 428 | 2346 } |
| 2347 | |
| 2348 /* Float-rounding functions. */ | |
| 2349 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2350 DEFUN ("fceiling", Ffceiling, 1, 2, 0, /* |
| 444 | 2351 Return the smallest integer no less than NUMBER, as a float. |
| 428 | 2352 \(Round toward +inf.\) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2353 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2354 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
|
2355 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
|
2356 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2357 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
|
2358 the calculation. |
| 428 | 2359 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2360 (number, divisor)) |
| 428 | 2361 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2362 ROUNDING_CONVERT(ceiling, 1); |
| 428 | 2363 } |
| 2364 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2365 DEFUN ("ffloor", Fffloor, 1, 2, 0, /* |
| 444 | 2366 Return the largest integer no greater than NUMBER, as a float. |
| 428 | 2367 \(Round towards -inf.\) |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2368 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2369 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
|
2370 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
|
2371 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2372 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
|
2373 the calculation. |
| 428 | 2374 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2375 (number, divisor)) |
| 428 | 2376 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2377 ROUNDING_CONVERT(floor, 1); |
| 428 | 2378 } |
| 2379 | |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2380 DEFUN ("fround", Ffround, 1, 2, 0, /* |
| 444 | 2381 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
|
2382 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
|
2383 even. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2384 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2385 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
|
2386 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
|
2387 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2388 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
|
2389 the calculation. |
| 428 | 2390 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
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|
2391 (number, divisor)) |
| 428 | 2392 { |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2393 ROUNDING_CONVERT(round, 1); |
| 428 | 2394 } |
| 2395 | |
|
4678
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Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2396 DEFUN ("ftruncate", Fftruncate, 1, 2, 0, /* |
| 428 | 2397 Truncate a floating point number to an integral float value. |
| 2398 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
|
2399 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2400 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
|
2401 to an integral float value. |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2402 |
|
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2403 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
|
2404 the calculation. |
| 428 | 2405 */ |
|
4678
b5e1d4f6b66f
Make #'floor, #'ceiling, #'round, #'truncate conform to Common Lisp.
Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2406 (number, divisor)) |
| 428 | 2407 { |
|
4678
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Aidan Kehoe <kehoea@parhasard.net>
parents:
2286
diff
changeset
|
2408 ROUNDING_CONVERT(truncate, 1); |
| 428 | 2409 } |
| 2410 | |
| 2411 #ifdef FLOAT_CATCH_SIGILL | |
| 2412 static SIGTYPE | |
| 2413 float_error (int signo) | |
| 2414 { | |
| 2415 if (! in_float) | |
| 2416 fatal_error_signal (signo); | |
| 2417 | |
| 2418 EMACS_REESTABLISH_SIGNAL (signo, arith_error); | |
| 2419 EMACS_UNBLOCK_SIGNAL (signo); | |
| 2420 | |
| 2421 in_float = 0; | |
| 2422 | |
| 2423 /* Was Fsignal(), but it just doesn't make sense for an error | |
| 2424 occurring inside a signal handler to be restartable, considering | |
| 2425 that anything could happen when the error is signaled and trapped | |
| 2426 and considering the asynchronous nature of signal handlers. */ | |
| 563 | 2427 signal_error (Qarith_error, 0, float_error_arg); |
| 428 | 2428 } |
| 2429 | |
| 2430 /* Another idea was to replace the library function `infnan' | |
| 2431 where SIGILL is signaled. */ | |
| 2432 | |
| 2433 #endif /* FLOAT_CATCH_SIGILL */ | |
| 2434 | |
| 2435 /* In C++, it is impossible to determine what type matherr expects | |
| 2436 without some more configure magic. | |
| 2437 We shouldn't be using matherr anyways - it's a non-standard SYSVism. */ | |
| 2438 #if defined (HAVE_MATHERR) && !defined(__cplusplus) | |
| 2439 int | |
| 2440 matherr (struct exception *x) | |
| 2441 { | |
| 2442 Lisp_Object args; | |
| 2443 if (! in_float) | |
| 2444 /* Not called from emacs-lisp float routines; do the default thing. */ | |
| 2445 return 0; | |
| 2446 | |
| 2447 /* if (!strcmp (x->name, "pow")) x->name = "expt"; */ | |
| 2448 | |
| 2449 args = Fcons (build_string (x->name), | |
| 2450 Fcons (make_float (x->arg1), | |
| 2451 ((in_float == 2) | |
| 2452 ? Fcons (make_float (x->arg2), Qnil) | |
| 2453 : Qnil))); | |
| 2454 switch (x->type) | |
| 2455 { | |
| 2456 case DOMAIN: Fsignal (Qdomain_error, args); break; | |
| 2457 case SING: Fsignal (Qsingularity_error, args); break; | |
| 2458 case OVERFLOW: Fsignal (Qoverflow_error, args); break; | |
| 2459 case UNDERFLOW: Fsignal (Qunderflow_error, args); break; | |
| 2460 default: Fsignal (Qarith_error, args); break; | |
| 2461 } | |
| 2462 return 1; /* don't set errno or print a message */ | |
| 2463 } | |
| 2464 #endif /* HAVE_MATHERR */ | |
| 2465 | |
| 2466 void | |
| 2467 init_floatfns_very_early (void) | |
| 2468 { | |
| 2469 # ifdef FLOAT_CATCH_SIGILL | |
| 613 | 2470 EMACS_SIGNAL (SIGILL, float_error); |
| 428 | 2471 # endif |
| 2472 in_float = 0; | |
| 2473 } | |
| 2474 | |
| 2475 void | |
| 2476 syms_of_floatfns (void) | |
| 2477 { | |
|
5117
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Ben Wing <ben@xemacs.org>
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diff
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|
2478 INIT_LISP_OBJECT (float); |
| 428 | 2479 |
| 2480 /* Trig functions. */ | |
| 2481 | |
| 2482 DEFSUBR (Facos); | |
| 2483 DEFSUBR (Fasin); | |
| 2484 DEFSUBR (Fatan); | |
| 2485 DEFSUBR (Fcos); | |
| 2486 DEFSUBR (Fsin); | |
| 2487 DEFSUBR (Ftan); | |
| 2488 | |
| 2489 /* Bessel functions */ | |
| 2490 | |
| 2491 #if 0 | |
| 2492 DEFSUBR (Fbessel_y0); | |
| 2493 DEFSUBR (Fbessel_y1); | |
| 2494 DEFSUBR (Fbessel_yn); | |
| 2495 DEFSUBR (Fbessel_j0); | |
| 2496 DEFSUBR (Fbessel_j1); | |
| 2497 DEFSUBR (Fbessel_jn); | |
| 2498 #endif /* 0 */ | |
| 2499 | |
| 2500 /* Error functions. */ | |
| 2501 | |
| 2502 #if 0 | |
| 2503 DEFSUBR (Ferf); | |
| 2504 DEFSUBR (Ferfc); | |
| 2505 DEFSUBR (Flog_gamma); | |
| 2506 #endif /* 0 */ | |
| 2507 | |
| 2508 /* Root and Log functions. */ | |
| 2509 | |
| 2510 DEFSUBR (Fexp); | |
| 2511 DEFSUBR (Fexpt); | |
| 2512 DEFSUBR (Flog); | |
| 2513 DEFSUBR (Flog10); | |
| 2514 DEFSUBR (Fsqrt); | |
| 2515 DEFSUBR (Fcube_root); | |
| 2516 | |
| 2517 /* Inverse trig functions. */ | |
| 2518 | |
| 2519 DEFSUBR (Facosh); | |
| 2520 DEFSUBR (Fasinh); | |
| 2521 DEFSUBR (Fatanh); | |
| 2522 DEFSUBR (Fcosh); | |
| 2523 DEFSUBR (Fsinh); | |
| 2524 DEFSUBR (Ftanh); | |
| 2525 | |
| 2526 /* Rounding functions */ | |
| 2527 | |
| 2528 DEFSUBR (Fabs); | |
| 2529 DEFSUBR (Ffloat); | |
| 2530 DEFSUBR (Flogb); | |
| 2531 DEFSUBR (Fceiling); | |
| 2532 DEFSUBR (Ffloor); | |
| 2533 DEFSUBR (Fround); | |
| 2534 DEFSUBR (Ftruncate); | |
| 2535 | |
| 2536 /* Float-rounding functions. */ | |
| 2537 | |
| 2538 DEFSUBR (Ffceiling); | |
| 2539 DEFSUBR (Fffloor); | |
| 2540 DEFSUBR (Ffround); | |
| 2541 DEFSUBR (Fftruncate); | |
| 2542 } | |
| 2543 | |
| 2544 void | |
| 2545 vars_of_floatfns (void) | |
| 2546 { | |
| 2547 Fprovide (intern ("lisp-float-type")); | |
| 2548 } |