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83ffe9cd | 1 | /* Copyright (C) 2002-2023 Free Software Foundation, Inc. |
d57a4b98 | 2 | |
e531258e | 3 | This file is part of GCC. |
d57a4b98 | 4 | |
e531258e | 5 | GCC is free software; you can redistribute it and/or modify |
d57a4b98 | 6 | it under the terms of the GNU General Public License as published by |
748086b7 | 7 | the Free Software Foundation; either version 3, or (at your option) |
d57a4b98 RH |
8 | any later version. |
9 | ||
e531258e | 10 | GCC is distributed in the hope that it will be useful, |
d57a4b98 RH |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
748086b7 JJ |
15 | Under Section 7 of GPL version 3, you are granted additional |
16 | permissions described in the GCC Runtime Library Exception, version | |
17 | 3.1, as published by the Free Software Foundation. | |
18 | ||
19 | You should have received a copy of the GNU General Public License and | |
20 | a copy of the GCC Runtime Library Exception along with this program; | |
21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | <http://www.gnu.org/licenses/>. */ | |
d57a4b98 RH |
23 | |
24 | /* | |
25 | * ISO C Standard: 5.2.4.2.2 Characteristics of floating types <float.h> | |
26 | */ | |
27 | ||
28 | #ifndef _FLOAT_H___ | |
29 | #define _FLOAT_H___ | |
30 | ||
31 | /* Radix of exponent representation, b. */ | |
32 | #undef FLT_RADIX | |
33 | #define FLT_RADIX __FLT_RADIX__ | |
34 | ||
35 | /* Number of base-FLT_RADIX digits in the significand, p. */ | |
36 | #undef FLT_MANT_DIG | |
37 | #undef DBL_MANT_DIG | |
38 | #undef LDBL_MANT_DIG | |
39 | #define FLT_MANT_DIG __FLT_MANT_DIG__ | |
40 | #define DBL_MANT_DIG __DBL_MANT_DIG__ | |
41 | #define LDBL_MANT_DIG __LDBL_MANT_DIG__ | |
42 | ||
43 | /* Number of decimal digits, q, such that any floating-point number with q | |
44 | decimal digits can be rounded into a floating-point number with p radix b | |
45 | digits and back again without change to the q decimal digits, | |
46 | ||
47 | p * log10(b) if b is a power of 10 | |
48 | floor((p - 1) * log10(b)) otherwise | |
49 | */ | |
50 | #undef FLT_DIG | |
51 | #undef DBL_DIG | |
52 | #undef LDBL_DIG | |
53 | #define FLT_DIG __FLT_DIG__ | |
54 | #define DBL_DIG __DBL_DIG__ | |
55 | #define LDBL_DIG __LDBL_DIG__ | |
56 | ||
981f6289 | 57 | /* Minimum int x such that FLT_RADIX**(x-1) is a normalized float, emin */ |
d57a4b98 RH |
58 | #undef FLT_MIN_EXP |
59 | #undef DBL_MIN_EXP | |
60 | #undef LDBL_MIN_EXP | |
61 | #define FLT_MIN_EXP __FLT_MIN_EXP__ | |
62 | #define DBL_MIN_EXP __DBL_MIN_EXP__ | |
63 | #define LDBL_MIN_EXP __LDBL_MIN_EXP__ | |
64 | ||
65 | /* Minimum negative integer such that 10 raised to that power is in the | |
66 | range of normalized floating-point numbers, | |
67 | ||
68 | ceil(log10(b) * (emin - 1)) | |
69 | */ | |
70 | #undef FLT_MIN_10_EXP | |
71 | #undef DBL_MIN_10_EXP | |
72 | #undef LDBL_MIN_10_EXP | |
73 | #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ | |
74 | #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ | |
75 | #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ | |
76 | ||
77 | /* Maximum int x such that FLT_RADIX**(x-1) is a representable float, emax. */ | |
78 | #undef FLT_MAX_EXP | |
79 | #undef DBL_MAX_EXP | |
80 | #undef LDBL_MAX_EXP | |
81 | #define FLT_MAX_EXP __FLT_MAX_EXP__ | |
82 | #define DBL_MAX_EXP __DBL_MAX_EXP__ | |
83 | #define LDBL_MAX_EXP __LDBL_MAX_EXP__ | |
84 | ||
85 | /* Maximum integer such that 10 raised to that power is in the range of | |
86 | representable finite floating-point numbers, | |
87 | ||
88 | floor(log10((1 - b**-p) * b**emax)) | |
89 | */ | |
90 | #undef FLT_MAX_10_EXP | |
91 | #undef DBL_MAX_10_EXP | |
92 | #undef LDBL_MAX_10_EXP | |
93 | #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ | |
94 | #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ | |
95 | #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ | |
96 | ||
97 | /* Maximum representable finite floating-point number, | |
98 | ||
99 | (1 - b**-p) * b**emax | |
100 | */ | |
101 | #undef FLT_MAX | |
102 | #undef DBL_MAX | |
103 | #undef LDBL_MAX | |
104 | #define FLT_MAX __FLT_MAX__ | |
105 | #define DBL_MAX __DBL_MAX__ | |
106 | #define LDBL_MAX __LDBL_MAX__ | |
107 | ||
108 | /* The difference between 1 and the least value greater than 1 that is | |
109 | representable in the given floating point type, b**1-p. */ | |
110 | #undef FLT_EPSILON | |
111 | #undef DBL_EPSILON | |
112 | #undef LDBL_EPSILON | |
113 | #define FLT_EPSILON __FLT_EPSILON__ | |
114 | #define DBL_EPSILON __DBL_EPSILON__ | |
115 | #define LDBL_EPSILON __LDBL_EPSILON__ | |
116 | ||
117 | /* Minimum normalized positive floating-point number, b**(emin - 1). */ | |
118 | #undef FLT_MIN | |
119 | #undef DBL_MIN | |
120 | #undef LDBL_MIN | |
121 | #define FLT_MIN __FLT_MIN__ | |
122 | #define DBL_MIN __DBL_MIN__ | |
123 | #define LDBL_MIN __LDBL_MIN__ | |
124 | ||
125 | /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown. */ | |
126 | /* ??? This is supposed to change with calls to fesetround in <fenv.h>. */ | |
127 | #undef FLT_ROUNDS | |
128 | #define FLT_ROUNDS 1 | |
129 | ||
00ec75a0 JW |
130 | #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \ |
131 | || (defined (__cplusplus) && __cplusplus >= 201103L) | |
56d8ffc1 JG |
132 | /* The floating-point expression evaluation method. The precise |
133 | definitions of these values are generalised to include support for | |
134 | the interchange and extended types defined in ISO/IEC TS 18661-3. | |
135 | Prior to this (for C99/C11) the definitions were: | |
136 | ||
137 | -1 indeterminate | |
138 | 0 evaluate all operations and constants just to the range and | |
139 | precision of the type | |
140 | 1 evaluate operations and constants of type float and double | |
141 | to the range and precision of the double type, evaluate | |
142 | long double operations and constants to the range and | |
143 | precision of the long double type | |
144 | 2 evaluate all operations and constants to the range and | |
145 | precision of the long double type | |
146 | ||
147 | The TS 18661-3 definitions are: | |
148 | ||
149 | -1 indeterminate | |
150 | 0 evaluate all operations and constants, whose semantic type has | |
151 | at most the range and precision of float, to the range and | |
152 | precision of float; evaluate all other operations and constants | |
153 | to the range and precision of the semantic type. | |
154 | 1 evaluate all operations and constants, whose semantic type has | |
155 | at most the range and precision of double, to the range and | |
156 | precision of double; evaluate all other operations and constants | |
157 | to the range and precision of the semantic type. | |
158 | 2 evaluate all operations and constants, whose semantic type has | |
159 | at most the range and precision of long double, to the range and | |
160 | precision of long double; evaluate all other operations and | |
161 | constants to the range and precision of the semantic type. | |
162 | N where _FloatN is a supported interchange floating type | |
163 | evaluate all operations and constants, whose semantic type has | |
164 | at most the range and precision of the _FloatN type, to the | |
165 | range and precision of the _FloatN type; evaluate all other | |
166 | operations and constants to the range and precision of the | |
167 | semantic type. | |
168 | N + 1, where _FloatNx is a supported extended floating type | |
169 | evaluate operations and constants, whose semantic type has at | |
170 | most the range and precision of the _FloatNx type, to the range | |
171 | and precision of the _FloatNx type; evaluate all other | |
172 | operations and constants to the range and precision of the | |
173 | semantic type. | |
174 | ||
175 | The compiler predefines two macros: | |
176 | ||
177 | __FLT_EVAL_METHOD__ | |
178 | Which, depending on the value given for | |
179 | -fpermitted-flt-eval-methods, may be limited to only those values | |
180 | for FLT_EVAL_METHOD defined in C99/C11. | |
181 | ||
182 | __FLT_EVAL_METHOD_TS_18661_3__ | |
183 | Which always permits the values for FLT_EVAL_METHOD defined in | |
184 | ISO/IEC TS 18661-3. | |
185 | ||
186 | Here we want to use __FLT_EVAL_METHOD__, unless | |
187 | __STDC_WANT_IEC_60559_TYPES_EXT__ is defined, in which case the user | |
188 | is specifically asking for the ISO/IEC TS 18661-3 types, so we use | |
189 | __FLT_EVAL_METHOD_TS_18661_3__. | |
d57a4b98 RH |
190 | |
191 | ??? This ought to change with the setting of the fp control word; | |
192 | the value provided by the compiler assumes the widest setting. */ | |
193 | #undef FLT_EVAL_METHOD | |
56d8ffc1 JG |
194 | #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ |
195 | #define FLT_EVAL_METHOD __FLT_EVAL_METHOD_TS_18661_3__ | |
196 | #else | |
d57a4b98 | 197 | #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ |
56d8ffc1 | 198 | #endif |
d57a4b98 RH |
199 | |
200 | /* Number of decimal digits, n, such that any floating-point number in the | |
201 | widest supported floating type with pmax radix b digits can be rounded | |
202 | to a floating-point number with n decimal digits and back again without | |
203 | change to the value, | |
204 | ||
205 | pmax * log10(b) if b is a power of 10 | |
206 | ceil(1 + pmax * log10(b)) otherwise | |
207 | */ | |
208 | #undef DECIMAL_DIG | |
209 | #define DECIMAL_DIG __DECIMAL_DIG__ | |
210 | ||
211 | #endif /* C99 */ | |
b7f0fff2 | 212 | |
ff164b60 JW |
213 | #if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \ |
214 | || (defined (__cplusplus) && __cplusplus >= 201703L) | |
2778d766 JM |
215 | /* Versions of DECIMAL_DIG for each floating-point type. */ |
216 | #undef FLT_DECIMAL_DIG | |
217 | #undef DBL_DECIMAL_DIG | |
218 | #undef LDBL_DECIMAL_DIG | |
219 | #define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__ | |
220 | #define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__ | |
c65699ef | 221 | #define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__ |
2778d766 JM |
222 | |
223 | /* Whether types support subnormal numbers. */ | |
224 | #undef FLT_HAS_SUBNORM | |
225 | #undef DBL_HAS_SUBNORM | |
226 | #undef LDBL_HAS_SUBNORM | |
227 | #define FLT_HAS_SUBNORM __FLT_HAS_DENORM__ | |
228 | #define DBL_HAS_SUBNORM __DBL_HAS_DENORM__ | |
229 | #define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__ | |
230 | ||
231 | /* Minimum positive values, including subnormals. */ | |
232 | #undef FLT_TRUE_MIN | |
233 | #undef DBL_TRUE_MIN | |
234 | #undef LDBL_TRUE_MIN | |
2778d766 | 235 | #define FLT_TRUE_MIN __FLT_DENORM_MIN__ |
2778d766 | 236 | #define DBL_TRUE_MIN __DBL_DENORM_MIN__ |
2778d766 | 237 | #define LDBL_TRUE_MIN __LDBL_DENORM_MIN__ |
2778d766 | 238 | |
48b0b196 | 239 | #endif /* C11 */ |
2778d766 | 240 | |
00be2a5f JM |
241 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
242 | /* Maximum finite positive value with MANT_DIG digits in the | |
243 | significand taking their maximum value. */ | |
244 | #undef FLT_NORM_MAX | |
245 | #undef DBL_NORM_MAX | |
246 | #undef LDBL_NORM_MAX | |
247 | #define FLT_NORM_MAX __FLT_NORM_MAX__ | |
248 | #define DBL_NORM_MAX __DBL_NORM_MAX__ | |
249 | #define LDBL_NORM_MAX __LDBL_NORM_MAX__ | |
250 | ||
e867f6b7 | 251 | /* Whether each type matches an IEC 60559 format. */ |
ac30c8b8 JM |
252 | #undef FLT_IS_IEC_60559 |
253 | #undef DBL_IS_IEC_60559 | |
254 | #undef LDBL_IS_IEC_60559 | |
255 | #define FLT_IS_IEC_60559 __FLT_IS_IEC_60559__ | |
256 | #define DBL_IS_IEC_60559 __DBL_IS_IEC_60559__ | |
257 | #define LDBL_IS_IEC_60559 __LDBL_IS_IEC_60559__ | |
258 | ||
6248f4ff JM |
259 | /* Infinity in type float; not defined if infinity not supported. */ |
260 | #if __FLT_HAS_INFINITY__ | |
3cfe746f JM |
261 | #undef INFINITY |
262 | #define INFINITY (__builtin_inff ()) | |
6248f4ff | 263 | #endif |
3cfe746f JM |
264 | |
265 | /* Quiet NaN, if supported for float. */ | |
266 | #if __FLT_HAS_QUIET_NAN__ | |
267 | #undef NAN | |
268 | #define NAN (__builtin_nanf ("")) | |
269 | #endif | |
270 | ||
271 | /* Signaling NaN, if supported for each type. All formats supported | |
272 | by GCC support either both quiet and signaling NaNs, or neither | |
273 | kind of NaN. */ | |
274 | #if __FLT_HAS_QUIET_NAN__ | |
275 | #undef FLT_SNAN | |
276 | #define FLT_SNAN (__builtin_nansf ("")) | |
277 | #endif | |
278 | #if __DBL_HAS_QUIET_NAN__ | |
279 | #undef DBL_SNAN | |
280 | #define DBL_SNAN (__builtin_nans ("")) | |
281 | #endif | |
282 | #if __LDBL_HAS_QUIET_NAN__ | |
283 | #undef LDBL_SNAN | |
284 | #define LDBL_SNAN (__builtin_nansl ("")) | |
285 | #endif | |
286 | ||
00be2a5f JM |
287 | #endif /* C2X */ |
288 | ||
1ffd8e34 JM |
289 | #if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \ |
290 | || defined __STDC_WANT_IEC_60559_EXT__) | |
1f2071fa JM |
291 | /* Number of decimal digits for which conversions between decimal |
292 | character strings and binary formats, in both directions, are | |
293 | correctly rounded. */ | |
294 | #define CR_DECIMAL_DIG __UINTMAX_MAX__ | |
295 | #endif | |
296 | ||
c65699ef JM |
297 | #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ |
298 | /* Constants for _FloatN and _FloatNx types from TS 18661-3. See | |
299 | comments above for their semantics. */ | |
300 | ||
301 | #ifdef __FLT16_MANT_DIG__ | |
302 | #undef FLT16_MANT_DIG | |
303 | #define FLT16_MANT_DIG __FLT16_MANT_DIG__ | |
304 | #undef FLT16_DIG | |
305 | #define FLT16_DIG __FLT16_DIG__ | |
306 | #undef FLT16_MIN_EXP | |
307 | #define FLT16_MIN_EXP __FLT16_MIN_EXP__ | |
308 | #undef FLT16_MIN_10_EXP | |
309 | #define FLT16_MIN_10_EXP __FLT16_MIN_10_EXP__ | |
310 | #undef FLT16_MAX_EXP | |
311 | #define FLT16_MAX_EXP __FLT16_MAX_EXP__ | |
312 | #undef FLT16_MAX_10_EXP | |
313 | #define FLT16_MAX_10_EXP __FLT16_MAX_10_EXP__ | |
314 | #undef FLT16_MAX | |
315 | #define FLT16_MAX __FLT16_MAX__ | |
316 | #undef FLT16_EPSILON | |
317 | #define FLT16_EPSILON __FLT16_EPSILON__ | |
318 | #undef FLT16_MIN | |
319 | #define FLT16_MIN __FLT16_MIN__ | |
320 | #undef FLT16_DECIMAL_DIG | |
321 | #define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__ | |
322 | #undef FLT16_TRUE_MIN | |
323 | #define FLT16_TRUE_MIN __FLT16_DENORM_MIN__ | |
3cfe746f JM |
324 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
325 | #undef FLT16_SNAN | |
326 | #define FLT16_SNAN (__builtin_nansf16 ("")) | |
327 | #endif /* C2X */ | |
c65699ef JM |
328 | #endif /* __FLT16_MANT_DIG__. */ |
329 | ||
330 | #ifdef __FLT32_MANT_DIG__ | |
331 | #undef FLT32_MANT_DIG | |
332 | #define FLT32_MANT_DIG __FLT32_MANT_DIG__ | |
333 | #undef FLT32_DIG | |
334 | #define FLT32_DIG __FLT32_DIG__ | |
335 | #undef FLT32_MIN_EXP | |
336 | #define FLT32_MIN_EXP __FLT32_MIN_EXP__ | |
337 | #undef FLT32_MIN_10_EXP | |
338 | #define FLT32_MIN_10_EXP __FLT32_MIN_10_EXP__ | |
339 | #undef FLT32_MAX_EXP | |
340 | #define FLT32_MAX_EXP __FLT32_MAX_EXP__ | |
341 | #undef FLT32_MAX_10_EXP | |
342 | #define FLT32_MAX_10_EXP __FLT32_MAX_10_EXP__ | |
343 | #undef FLT32_MAX | |
344 | #define FLT32_MAX __FLT32_MAX__ | |
345 | #undef FLT32_EPSILON | |
346 | #define FLT32_EPSILON __FLT32_EPSILON__ | |
347 | #undef FLT32_MIN | |
348 | #define FLT32_MIN __FLT32_MIN__ | |
349 | #undef FLT32_DECIMAL_DIG | |
350 | #define FLT32_DECIMAL_DIG __FLT32_DECIMAL_DIG__ | |
351 | #undef FLT32_TRUE_MIN | |
352 | #define FLT32_TRUE_MIN __FLT32_DENORM_MIN__ | |
3cfe746f JM |
353 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
354 | #undef FLT32_SNAN | |
355 | #define FLT32_SNAN (__builtin_nansf32 ("")) | |
356 | #endif /* C2X */ | |
c65699ef JM |
357 | #endif /* __FLT32_MANT_DIG__. */ |
358 | ||
359 | #ifdef __FLT64_MANT_DIG__ | |
360 | #undef FLT64_MANT_DIG | |
361 | #define FLT64_MANT_DIG __FLT64_MANT_DIG__ | |
362 | #undef FLT64_DIG | |
363 | #define FLT64_DIG __FLT64_DIG__ | |
364 | #undef FLT64_MIN_EXP | |
365 | #define FLT64_MIN_EXP __FLT64_MIN_EXP__ | |
366 | #undef FLT64_MIN_10_EXP | |
367 | #define FLT64_MIN_10_EXP __FLT64_MIN_10_EXP__ | |
368 | #undef FLT64_MAX_EXP | |
369 | #define FLT64_MAX_EXP __FLT64_MAX_EXP__ | |
370 | #undef FLT64_MAX_10_EXP | |
371 | #define FLT64_MAX_10_EXP __FLT64_MAX_10_EXP__ | |
372 | #undef FLT64_MAX | |
373 | #define FLT64_MAX __FLT64_MAX__ | |
374 | #undef FLT64_EPSILON | |
375 | #define FLT64_EPSILON __FLT64_EPSILON__ | |
376 | #undef FLT64_MIN | |
377 | #define FLT64_MIN __FLT64_MIN__ | |
378 | #undef FLT64_DECIMAL_DIG | |
379 | #define FLT64_DECIMAL_DIG __FLT64_DECIMAL_DIG__ | |
380 | #undef FLT64_TRUE_MIN | |
381 | #define FLT64_TRUE_MIN __FLT64_DENORM_MIN__ | |
3cfe746f JM |
382 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
383 | #undef FLT64_SNAN | |
384 | #define FLT64_SNAN (__builtin_nansf64 ("")) | |
385 | #endif /* C2X */ | |
c65699ef JM |
386 | #endif /* __FLT64_MANT_DIG__. */ |
387 | ||
388 | #ifdef __FLT128_MANT_DIG__ | |
389 | #undef FLT128_MANT_DIG | |
390 | #define FLT128_MANT_DIG __FLT128_MANT_DIG__ | |
391 | #undef FLT128_DIG | |
392 | #define FLT128_DIG __FLT128_DIG__ | |
393 | #undef FLT128_MIN_EXP | |
394 | #define FLT128_MIN_EXP __FLT128_MIN_EXP__ | |
395 | #undef FLT128_MIN_10_EXP | |
396 | #define FLT128_MIN_10_EXP __FLT128_MIN_10_EXP__ | |
397 | #undef FLT128_MAX_EXP | |
398 | #define FLT128_MAX_EXP __FLT128_MAX_EXP__ | |
399 | #undef FLT128_MAX_10_EXP | |
400 | #define FLT128_MAX_10_EXP __FLT128_MAX_10_EXP__ | |
401 | #undef FLT128_MAX | |
402 | #define FLT128_MAX __FLT128_MAX__ | |
403 | #undef FLT128_EPSILON | |
404 | #define FLT128_EPSILON __FLT128_EPSILON__ | |
405 | #undef FLT128_MIN | |
406 | #define FLT128_MIN __FLT128_MIN__ | |
407 | #undef FLT128_DECIMAL_DIG | |
408 | #define FLT128_DECIMAL_DIG __FLT128_DECIMAL_DIG__ | |
409 | #undef FLT128_TRUE_MIN | |
410 | #define FLT128_TRUE_MIN __FLT128_DENORM_MIN__ | |
3cfe746f JM |
411 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
412 | #undef FLT128_SNAN | |
413 | #define FLT128_SNAN (__builtin_nansf128 ("")) | |
414 | #endif /* C2X */ | |
c65699ef JM |
415 | #endif /* __FLT128_MANT_DIG__. */ |
416 | ||
417 | #ifdef __FLT32X_MANT_DIG__ | |
418 | #undef FLT32X_MANT_DIG | |
419 | #define FLT32X_MANT_DIG __FLT32X_MANT_DIG__ | |
420 | #undef FLT32X_DIG | |
421 | #define FLT32X_DIG __FLT32X_DIG__ | |
422 | #undef FLT32X_MIN_EXP | |
423 | #define FLT32X_MIN_EXP __FLT32X_MIN_EXP__ | |
424 | #undef FLT32X_MIN_10_EXP | |
425 | #define FLT32X_MIN_10_EXP __FLT32X_MIN_10_EXP__ | |
426 | #undef FLT32X_MAX_EXP | |
427 | #define FLT32X_MAX_EXP __FLT32X_MAX_EXP__ | |
428 | #undef FLT32X_MAX_10_EXP | |
429 | #define FLT32X_MAX_10_EXP __FLT32X_MAX_10_EXP__ | |
430 | #undef FLT32X_MAX | |
431 | #define FLT32X_MAX __FLT32X_MAX__ | |
432 | #undef FLT32X_EPSILON | |
433 | #define FLT32X_EPSILON __FLT32X_EPSILON__ | |
434 | #undef FLT32X_MIN | |
435 | #define FLT32X_MIN __FLT32X_MIN__ | |
436 | #undef FLT32X_DECIMAL_DIG | |
437 | #define FLT32X_DECIMAL_DIG __FLT32X_DECIMAL_DIG__ | |
438 | #undef FLT32X_TRUE_MIN | |
439 | #define FLT32X_TRUE_MIN __FLT32X_DENORM_MIN__ | |
3cfe746f JM |
440 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
441 | #undef FLT32X_SNAN | |
442 | #define FLT32X_SNAN (__builtin_nansf32x ("")) | |
443 | #endif /* C2X */ | |
c65699ef JM |
444 | #endif /* __FLT32X_MANT_DIG__. */ |
445 | ||
446 | #ifdef __FLT64X_MANT_DIG__ | |
447 | #undef FLT64X_MANT_DIG | |
448 | #define FLT64X_MANT_DIG __FLT64X_MANT_DIG__ | |
449 | #undef FLT64X_DIG | |
450 | #define FLT64X_DIG __FLT64X_DIG__ | |
451 | #undef FLT64X_MIN_EXP | |
452 | #define FLT64X_MIN_EXP __FLT64X_MIN_EXP__ | |
453 | #undef FLT64X_MIN_10_EXP | |
454 | #define FLT64X_MIN_10_EXP __FLT64X_MIN_10_EXP__ | |
455 | #undef FLT64X_MAX_EXP | |
456 | #define FLT64X_MAX_EXP __FLT64X_MAX_EXP__ | |
457 | #undef FLT64X_MAX_10_EXP | |
458 | #define FLT64X_MAX_10_EXP __FLT64X_MAX_10_EXP__ | |
459 | #undef FLT64X_MAX | |
460 | #define FLT64X_MAX __FLT64X_MAX__ | |
461 | #undef FLT64X_EPSILON | |
462 | #define FLT64X_EPSILON __FLT64X_EPSILON__ | |
463 | #undef FLT64X_MIN | |
464 | #define FLT64X_MIN __FLT64X_MIN__ | |
465 | #undef FLT64X_DECIMAL_DIG | |
466 | #define FLT64X_DECIMAL_DIG __FLT64X_DECIMAL_DIG__ | |
467 | #undef FLT64X_TRUE_MIN | |
468 | #define FLT64X_TRUE_MIN __FLT64X_DENORM_MIN__ | |
3cfe746f JM |
469 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
470 | #undef FLT64X_SNAN | |
471 | #define FLT64X_SNAN (__builtin_nansf64x ("")) | |
472 | #endif /* C2X */ | |
c65699ef JM |
473 | #endif /* __FLT64X_MANT_DIG__. */ |
474 | ||
475 | #ifdef __FLT128X_MANT_DIG__ | |
476 | #undef FLT128X_MANT_DIG | |
477 | #define FLT128X_MANT_DIG __FLT128X_MANT_DIG__ | |
478 | #undef FLT128X_DIG | |
479 | #define FLT128X_DIG __FLT128X_DIG__ | |
480 | #undef FLT128X_MIN_EXP | |
481 | #define FLT128X_MIN_EXP __FLT128X_MIN_EXP__ | |
482 | #undef FLT128X_MIN_10_EXP | |
483 | #define FLT128X_MIN_10_EXP __FLT128X_MIN_10_EXP__ | |
484 | #undef FLT128X_MAX_EXP | |
485 | #define FLT128X_MAX_EXP __FLT128X_MAX_EXP__ | |
486 | #undef FLT128X_MAX_10_EXP | |
487 | #define FLT128X_MAX_10_EXP __FLT128X_MAX_10_EXP__ | |
488 | #undef FLT128X_MAX | |
489 | #define FLT128X_MAX __FLT128X_MAX__ | |
490 | #undef FLT128X_EPSILON | |
491 | #define FLT128X_EPSILON __FLT128X_EPSILON__ | |
492 | #undef FLT128X_MIN | |
493 | #define FLT128X_MIN __FLT128X_MIN__ | |
494 | #undef FLT128X_DECIMAL_DIG | |
495 | #define FLT128X_DECIMAL_DIG __FLT128X_DECIMAL_DIG__ | |
496 | #undef FLT128X_TRUE_MIN | |
497 | #define FLT128X_TRUE_MIN __FLT128X_DENORM_MIN__ | |
3cfe746f JM |
498 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
499 | #undef FLT128X_SNAN | |
500 | #define FLT128X_SNAN (__builtin_nansf128x ("")) | |
501 | #endif /* C2X */ | |
c65699ef JM |
502 | #endif /* __FLT128X_MANT_DIG__. */ |
503 | ||
504 | #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__. */ | |
505 | ||
27dfdc0f JM |
506 | #ifdef __DEC32_MANT_DIG__ |
507 | #if (defined __STDC_WANT_DEC_FP__ \ | |
508 | || defined __STDC_WANT_IEC_60559_DFP_EXT__ \ | |
509 | || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L)) | |
510 | /* C2X; formerly Technical Report 24732, extension for decimal | |
511 | floating-point arithmetic: Characteristic of decimal floating types | |
512 | <float.h>, and TS 18661-2. */ | |
b7f0fff2 JJ |
513 | |
514 | /* Number of base-FLT_RADIX digits in the significand, p. */ | |
515 | #undef DEC32_MANT_DIG | |
516 | #undef DEC64_MANT_DIG | |
517 | #undef DEC128_MANT_DIG | |
518 | #define DEC32_MANT_DIG __DEC32_MANT_DIG__ | |
519 | #define DEC64_MANT_DIG __DEC64_MANT_DIG__ | |
520 | #define DEC128_MANT_DIG __DEC128_MANT_DIG__ | |
521 | ||
522 | /* Minimum exponent. */ | |
523 | #undef DEC32_MIN_EXP | |
524 | #undef DEC64_MIN_EXP | |
525 | #undef DEC128_MIN_EXP | |
526 | #define DEC32_MIN_EXP __DEC32_MIN_EXP__ | |
527 | #define DEC64_MIN_EXP __DEC64_MIN_EXP__ | |
528 | #define DEC128_MIN_EXP __DEC128_MIN_EXP__ | |
529 | ||
530 | /* Maximum exponent. */ | |
531 | #undef DEC32_MAX_EXP | |
532 | #undef DEC64_MAX_EXP | |
533 | #undef DEC128_MAX_EXP | |
534 | #define DEC32_MAX_EXP __DEC32_MAX_EXP__ | |
535 | #define DEC64_MAX_EXP __DEC64_MAX_EXP__ | |
536 | #define DEC128_MAX_EXP __DEC128_MAX_EXP__ | |
537 | ||
538 | /* Maximum representable finite decimal floating-point number | |
539 | (there are 6, 15, and 33 9s after the decimal points respectively). */ | |
540 | #undef DEC32_MAX | |
541 | #undef DEC64_MAX | |
542 | #undef DEC128_MAX | |
543 | #define DEC32_MAX __DEC32_MAX__ | |
544 | #define DEC64_MAX __DEC64_MAX__ | |
545 | #define DEC128_MAX __DEC128_MAX__ | |
546 | ||
547 | /* The difference between 1 and the least value greater than 1 that is | |
548 | representable in the given floating point type. */ | |
549 | #undef DEC32_EPSILON | |
550 | #undef DEC64_EPSILON | |
551 | #undef DEC128_EPSILON | |
552 | #define DEC32_EPSILON __DEC32_EPSILON__ | |
553 | #define DEC64_EPSILON __DEC64_EPSILON__ | |
554 | #define DEC128_EPSILON __DEC128_EPSILON__ | |
555 | ||
556 | /* Minimum normalized positive floating-point number. */ | |
557 | #undef DEC32_MIN | |
558 | #undef DEC64_MIN | |
559 | #undef DEC128_MIN | |
560 | #define DEC32_MIN __DEC32_MIN__ | |
561 | #define DEC64_MIN __DEC64_MIN__ | |
562 | #define DEC128_MIN __DEC128_MIN__ | |
563 | ||
b7f0fff2 JJ |
564 | /* The floating-point expression evaluation method. |
565 | -1 indeterminate | |
566 | 0 evaluate all operations and constants just to the range and | |
567 | precision of the type | |
568 | 1 evaluate operations and constants of type _Decimal32 | |
569 | and _Decimal64 to the range and precision of the _Decimal64 | |
570 | type, evaluate _Decimal128 operations and constants to the | |
571 | range and precision of the _Decimal128 type; | |
572 | 2 evaluate all operations and constants to the range and | |
573 | precision of the _Decimal128 type. */ | |
574 | ||
7ecb6f5b JJ |
575 | #undef DEC_EVAL_METHOD |
576 | #define DEC_EVAL_METHOD __DEC_EVAL_METHOD__ | |
b7f0fff2 | 577 | |
27dfdc0f JM |
578 | #endif /* __STDC_WANT_DEC_FP__ || __STDC_WANT_IEC_60559_DFP_EXT__ || C2X. */ |
579 | ||
580 | #ifdef __STDC_WANT_DEC_FP__ | |
581 | ||
582 | /* Minimum subnormal positive floating-point number. */ | |
583 | #undef DEC32_SUBNORMAL_MIN | |
584 | #undef DEC64_SUBNORMAL_MIN | |
585 | #undef DEC128_SUBNORMAL_MIN | |
586 | #define DEC32_SUBNORMAL_MIN __DEC32_SUBNORMAL_MIN__ | |
587 | #define DEC64_SUBNORMAL_MIN __DEC64_SUBNORMAL_MIN__ | |
588 | #define DEC128_SUBNORMAL_MIN __DEC128_SUBNORMAL_MIN__ | |
589 | ||
590 | #endif /* __STDC_WANT_DEC_FP__. */ | |
591 | ||
592 | #if (defined __STDC_WANT_IEC_60559_DFP_EXT__ \ | |
593 | || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L)) | |
594 | ||
595 | /* Minimum subnormal positive floating-point number. */ | |
596 | #undef DEC32_TRUE_MIN | |
597 | #undef DEC64_TRUE_MIN | |
598 | #undef DEC128_TRUE_MIN | |
599 | #define DEC32_TRUE_MIN __DEC32_SUBNORMAL_MIN__ | |
600 | #define DEC64_TRUE_MIN __DEC64_SUBNORMAL_MIN__ | |
601 | #define DEC128_TRUE_MIN __DEC128_SUBNORMAL_MIN__ | |
602 | ||
603 | #endif /* __STDC_WANT_IEC_60559_DFP_EXT__ || C2X. */ | |
604 | ||
3cfe746f JM |
605 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
606 | ||
607 | /* Infinity in type _Decimal32. */ | |
608 | #undef DEC_INFINITY | |
609 | #define DEC_INFINITY (__builtin_infd32 ()) | |
610 | ||
611 | /* Quiet NaN in type _Decimal32. */ | |
612 | #undef DEC_NAN | |
613 | #define DEC_NAN (__builtin_nand32 ("")) | |
614 | ||
f8e4c55c JM |
615 | /* Signaling NaN in each decimal floating-point type. */ |
616 | #undef DEC32_SNAN | |
617 | #define DEC32_SNAN (__builtin_nansd32 ("")) | |
618 | #undef DEC64_SNAN | |
619 | #define DEC64_SNAN (__builtin_nansd64 ("")) | |
620 | #undef DEC128_SNAN | |
621 | #define DEC128_SNAN (__builtin_nansd128 ("")) | |
622 | ||
3cfe746f JM |
623 | #endif /* C2X */ |
624 | ||
27dfdc0f | 625 | #endif /* __DEC32_MANT_DIG__ */ |
b7f0fff2 | 626 | |
9a265c97 JM |
627 | #if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L |
628 | #define __STDC_VERSION_FLOAT_H__ 202311L | |
629 | #endif | |
630 | ||
d57a4b98 | 631 | #endif /* _FLOAT_H___ */ |