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94a86be0 | 1 | // The template and inlines for the numeric_limits classes. -*- C++ -*- |
de96ac46 | 2 | |
99dee823 | 3 | // Copyright (C) 1999-2021 Free Software Foundation, Inc. |
de96ac46 BK |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
de96ac46 BK |
9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
de96ac46 | 24 | |
f910786b | 25 | /** @file include/limits |
0aa06b18 BK |
26 | * This is a Standard C++ Library header. |
27 | */ | |
28 | ||
54c1bf78 BK |
29 | // Note: this is not a conforming implementation. |
30 | // Written by Gabriel Dos Reis <gdr@codesourcery.com> | |
31 | ||
32 | // | |
33 | // ISO 14882:1998 | |
34 | // 18.2.1 | |
35 | // | |
36 | ||
1143680e SE |
37 | #ifndef _GLIBCXX_NUMERIC_LIMITS |
38 | #define _GLIBCXX_NUMERIC_LIMITS 1 | |
54c1bf78 BK |
39 | |
40 | #pragma GCC system_header | |
41 | ||
54c1bf78 BK |
42 | #include <bits/c++config.h> |
43 | ||
44 | // | |
45 | // The numeric_limits<> traits document implementation-defined aspects | |
46 | // of fundamental arithmetic data types (integers and floating points). | |
ce4674f2 | 47 | // From Standard C++ point of view, there are 14 such types: |
54c1bf78 | 48 | // * integers |
94a86be0 | 49 | // bool (1) |
ce4674f2 | 50 | // char, signed char, unsigned char, wchar_t (4) |
54c1bf78 BK |
51 | // short, unsigned short (2) |
52 | // int, unsigned (2) | |
53 | // long, unsigned long (2) | |
54 | // | |
55 | // * floating points | |
56 | // float (1) | |
57 | // double (1) | |
58 | // long double (1) | |
59 | // | |
28dac70a | 60 | // GNU C++ understands (where supported by the host C-library) |
54c1bf78 BK |
61 | // * integer |
62 | // long long, unsigned long long (2) | |
63 | // | |
ce4674f2 | 64 | // which brings us to 16 fundamental arithmetic data types in GNU C++. |
54c1bf78 | 65 | // |
6ad8f949 | 66 | // |
54c1bf78 BK |
67 | // Since a numeric_limits<> is a bit tricky to get right, we rely on |
68 | // an interface composed of macros which should be defined in config/os | |
69 | // or config/cpu when they differ from the generic (read arbitrary) | |
70 | // definitions given here. | |
71 | // | |
72 | ||
585e661a GDR |
73 | // These values can be overridden in the target configuration file. |
74 | // The default values are appropriate for many 32-bit targets. | |
54c1bf78 | 75 | |
28dac70a | 76 | // GCC only intrinsically supports modulo integral types. The only remaining |
da28539c RH |
77 | // integral exceptional values is division by zero. Only targets that do not |
78 | // signal division by zero in some "hard to ignore" way should use false. | |
2778669a PE |
79 | #ifndef __glibcxx_integral_traps |
80 | # define __glibcxx_integral_traps true | |
54c1bf78 BK |
81 | #endif |
82 | ||
54c1bf78 BK |
83 | // float |
84 | // | |
85 | ||
28dac70a | 86 | // Default values. Should be overridden in configuration files if necessary. |
54c1bf78 | 87 | |
2778669a PE |
88 | #ifndef __glibcxx_float_has_denorm_loss |
89 | # define __glibcxx_float_has_denorm_loss false | |
54c1bf78 | 90 | #endif |
2778669a PE |
91 | #ifndef __glibcxx_float_traps |
92 | # define __glibcxx_float_traps false | |
54c1bf78 | 93 | #endif |
2778669a PE |
94 | #ifndef __glibcxx_float_tinyness_before |
95 | # define __glibcxx_float_tinyness_before false | |
54c1bf78 BK |
96 | #endif |
97 | ||
54c1bf78 BK |
98 | // double |
99 | ||
28dac70a | 100 | // Default values. Should be overridden in configuration files if necessary. |
54c1bf78 | 101 | |
2778669a PE |
102 | #ifndef __glibcxx_double_has_denorm_loss |
103 | # define __glibcxx_double_has_denorm_loss false | |
54c1bf78 | 104 | #endif |
2778669a PE |
105 | #ifndef __glibcxx_double_traps |
106 | # define __glibcxx_double_traps false | |
54c1bf78 | 107 | #endif |
2778669a PE |
108 | #ifndef __glibcxx_double_tinyness_before |
109 | # define __glibcxx_double_tinyness_before false | |
54c1bf78 BK |
110 | #endif |
111 | ||
54c1bf78 BK |
112 | // long double |
113 | ||
28dac70a | 114 | // Default values. Should be overridden in configuration files if necessary. |
54c1bf78 | 115 | |
2778669a PE |
116 | #ifndef __glibcxx_long_double_has_denorm_loss |
117 | # define __glibcxx_long_double_has_denorm_loss false | |
54c1bf78 | 118 | #endif |
2778669a PE |
119 | #ifndef __glibcxx_long_double_traps |
120 | # define __glibcxx_long_double_traps false | |
54c1bf78 | 121 | #endif |
2778669a PE |
122 | #ifndef __glibcxx_long_double_tinyness_before |
123 | # define __glibcxx_long_double_tinyness_before false | |
725dc051 | 124 | #endif |
54c1bf78 | 125 | |
6ad8f949 RH |
126 | // You should not need to define any macros below this point. |
127 | ||
78a7c317 | 128 | #define __glibcxx_signed_b(T,B) ((T)(-1) < 0) |
6ad8f949 | 129 | |
78a7c317 DD |
130 | #define __glibcxx_min_b(T,B) \ |
131 | (__glibcxx_signed_b (T,B) ? -__glibcxx_max_b (T,B) - 1 : (T)0) | |
6ad8f949 | 132 | |
78a7c317 DD |
133 | #define __glibcxx_max_b(T,B) \ |
134 | (__glibcxx_signed_b (T,B) ? \ | |
135 | (((((T)1 << (__glibcxx_digits_b (T,B) - 1)) - 1) << 1) + 1) : ~(T)0) | |
6ad8f949 | 136 | |
78a7c317 DD |
137 | #define __glibcxx_digits_b(T,B) \ |
138 | (B - __glibcxx_signed_b (T,B)) | |
6ad8f949 RH |
139 | |
140 | // The fraction 643/2136 approximates log10(2) to 7 significant digits. | |
78a7c317 DD |
141 | #define __glibcxx_digits10_b(T,B) \ |
142 | (__glibcxx_digits_b (T,B) * 643L / 2136) | |
143 | ||
144 | #define __glibcxx_signed(T) \ | |
145 | __glibcxx_signed_b (T, sizeof(T) * __CHAR_BIT__) | |
146 | #define __glibcxx_min(T) \ | |
147 | __glibcxx_min_b (T, sizeof(T) * __CHAR_BIT__) | |
148 | #define __glibcxx_max(T) \ | |
149 | __glibcxx_max_b (T, sizeof(T) * __CHAR_BIT__) | |
150 | #define __glibcxx_digits(T) \ | |
151 | __glibcxx_digits_b (T, sizeof(T) * __CHAR_BIT__) | |
2778669a | 152 | #define __glibcxx_digits10(T) \ |
78a7c317 | 153 | __glibcxx_digits10_b (T, sizeof(T) * __CHAR_BIT__) |
6ad8f949 | 154 | |
018afad3 | 155 | #define __glibcxx_max_digits10(T) \ |
dd60dacd | 156 | (2 + (T) * 643L / 2136) |
54c1bf78 | 157 | |
12ffa228 BK |
158 | namespace std _GLIBCXX_VISIBILITY(default) |
159 | { | |
160 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
3cbc7af0 | 161 | |
bd2726e0 PE |
162 | /** |
163 | * @brief Describes the rounding style for floating-point types. | |
164 | * | |
165 | * This is used in the std::numeric_limits class. | |
166 | */ | |
6ad8f949 | 167 | enum float_round_style |
54c1bf78 | 168 | { |
f910786b BK |
169 | round_indeterminate = -1, /// Intermediate. |
170 | round_toward_zero = 0, /// To zero. | |
171 | round_to_nearest = 1, /// To the nearest representable value. | |
172 | round_toward_infinity = 2, /// To infinity. | |
173 | round_toward_neg_infinity = 3 /// To negative infinity. | |
54c1bf78 BK |
174 | }; |
175 | ||
bd2726e0 PE |
176 | /** |
177 | * @brief Describes the denormalization for floating-point types. | |
178 | * | |
179 | * These values represent the presence or absence of a variable number | |
180 | * of exponent bits. This type is used in the std::numeric_limits class. | |
181 | */ | |
6ad8f949 | 182 | enum float_denorm_style |
54c1bf78 | 183 | { |
bd2726e0 | 184 | /// Indeterminate at compile time whether denormalized values are allowed. |
54c1bf78 | 185 | denorm_indeterminate = -1, |
bd2726e0 | 186 | /// The type does not allow denormalized values. |
54c1bf78 | 187 | denorm_absent = 0, |
bd2726e0 | 188 | /// The type allows denormalized values. |
54c1bf78 BK |
189 | denorm_present = 1 |
190 | }; | |
191 | ||
bd2726e0 PE |
192 | /** |
193 | * @brief Part of std::numeric_limits. | |
194 | * | |
195 | * The @c static @c const members are usable as integral constant | |
196 | * expressions. | |
197 | * | |
28dac70a | 198 | * @note This is a separate class for purposes of efficiency; you |
bd2726e0 PE |
199 | * should only access these members as part of an instantiation |
200 | * of the std::numeric_limits class. | |
201 | */ | |
84979344 BK |
202 | struct __numeric_limits_base |
203 | { | |
bd2726e0 | 204 | /** This will be true for all fundamental types (which have |
94a86be0 BK |
205 | specializations), and false for everything else. */ |
206 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = false; | |
84979344 | 207 | |
bd2726e0 | 208 | /** The number of @c radix digits that be represented without change: for |
94a86be0 BK |
209 | integer types, the number of non-sign bits in the mantissa; for |
210 | floating types, the number of @c radix digits in the mantissa. */ | |
211 | static _GLIBCXX_USE_CONSTEXPR int digits = 0; | |
212 | ||
bd2726e0 | 213 | /** The number of base 10 digits that can be represented without change. */ |
94a86be0 BK |
214 | static _GLIBCXX_USE_CONSTEXPR int digits10 = 0; |
215 | ||
734f5023 | 216 | #if __cplusplus >= 201103L |
018afad3 ESR |
217 | /** The number of base 10 digits required to ensure that values which |
218 | differ are always differentiated. */ | |
94a86be0 | 219 | static constexpr int max_digits10 = 0; |
018afad3 | 220 | #endif |
94a86be0 | 221 | |
bd2726e0 | 222 | /** True if the type is signed. */ |
94a86be0 BK |
223 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
224 | ||
c0ffa2ba | 225 | /** True if the type is integer. */ |
94a86be0 BK |
226 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; |
227 | ||
c0ffa2ba | 228 | /** True if the type uses an exact representation. All integer types are |
94a86be0 | 229 | exact, but not all exact types are integer. For example, rational and |
c0ffa2ba | 230 | fixed-exponent representations are exact but not integer. */ |
94a86be0 BK |
231 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; |
232 | ||
bd2726e0 | 233 | /** For integer types, specifies the base of the representation. For |
94a86be0 BK |
234 | floating types, specifies the base of the exponent representation. */ |
235 | static _GLIBCXX_USE_CONSTEXPR int radix = 0; | |
84979344 | 236 | |
bd2726e0 | 237 | /** The minimum negative integer such that @c radix raised to the power of |
94a86be0 BK |
238 | (one less than that integer) is a normalized floating point number. */ |
239 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
240 | ||
bd2726e0 | 241 | /** The minimum negative integer such that 10 raised to that power is in |
94a86be0 BK |
242 | the range of normalized floating point numbers. */ |
243 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
244 | ||
bd2726e0 | 245 | /** The maximum positive integer such that @c radix raised to the power of |
94a86be0 | 246 | (one less than that integer) is a representable finite floating point |
bd2726e0 | 247 | number. */ |
94a86be0 BK |
248 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; |
249 | ||
bd2726e0 | 250 | /** The maximum positive integer such that 10 raised to that power is in |
94a86be0 BK |
251 | the range of representable finite floating point numbers. */ |
252 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
6ad8f949 | 253 | |
bd2726e0 | 254 | /** True if the type has a representation for positive infinity. */ |
94a86be0 BK |
255 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; |
256 | ||
bd2726e0 | 257 | /** True if the type has a representation for a quiet (non-signaling) |
c0ffa2ba | 258 | Not a Number. */ |
94a86be0 BK |
259 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; |
260 | ||
bd2726e0 | 261 | /** True if the type has a representation for a signaling |
c0ffa2ba | 262 | Not a Number. */ |
94a86be0 BK |
263 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; |
264 | ||
bd2726e0 | 265 | /** See std::float_denorm_style for more information. */ |
94a86be0 BK |
266 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm = denorm_absent; |
267 | ||
c0ffa2ba BK |
268 | /** True if loss of accuracy is detected as a denormalization loss, |
269 | rather than as an inexact result. */ | |
94a86be0 | 270 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; |
84979344 | 271 | |
bd2726e0 | 272 | /** True if-and-only-if the type adheres to the IEC 559 standard, also |
94a86be0 BK |
273 | known as IEEE 754. (Only makes sense for floating point types.) */ |
274 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
275 | ||
c0ffa2ba | 276 | /** True if the set of values representable by the type is |
94a86be0 | 277 | finite. All built-in types are bounded, this member would be |
c0ffa2ba | 278 | false for arbitrary precision types. */ |
94a86be0 BK |
279 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false; |
280 | ||
1c830087 MG |
281 | /** True if the type is @e modulo. A type is modulo if, for any |
282 | operation involving +, -, or * on values of that type whose | |
283 | result would fall outside the range [min(),max()], the value | |
284 | returned differs from the true value by an integer multiple of | |
285 | max() - min() + 1. On most machines, this is false for floating | |
286 | types, true for unsigned integers, and true for signed integers. | |
287 | See PR22200 about signed integers. */ | |
94a86be0 | 288 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
84979344 | 289 | |
bd2726e0 | 290 | /** True if trapping is implemented for this type. */ |
94a86be0 BK |
291 | static _GLIBCXX_USE_CONSTEXPR bool traps = false; |
292 | ||
28dac70a | 293 | /** True if tininess is detected before rounding. (see IEC 559) */ |
94a86be0 BK |
294 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; |
295 | ||
bd2726e0 | 296 | /** See std::float_round_style for more information. This is only |
94a86be0 | 297 | meaningful for floating types; integer types will all be |
bd2726e0 | 298 | round_toward_zero. */ |
33ac58d5 | 299 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style = |
94a86be0 | 300 | round_toward_zero; |
84979344 BK |
301 | }; |
302 | ||
bd2726e0 PE |
303 | /** |
304 | * @brief Properties of fundamental types. | |
305 | * | |
306 | * This class allows a program to obtain information about the | |
307 | * representation of a fundamental type on a given platform. For | |
308 | * non-fundamental types, the functions will return 0 and the data | |
309 | * members will all be @c false. | |
bd2726e0 | 310 | */ |
6ad8f949 RH |
311 | template<typename _Tp> |
312 | struct numeric_limits : public __numeric_limits_base | |
54c1bf78 | 313 | { |
bd2726e0 | 314 | /** The minimum finite value, or for floating types with |
94a86be0 BK |
315 | denormalization, the minimum positive normalized value. */ |
316 | static _GLIBCXX_CONSTEXPR _Tp | |
b98fcf6e | 317 | min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 318 | |
bd2726e0 | 319 | /** The maximum finite value. */ |
94a86be0 | 320 | static _GLIBCXX_CONSTEXPR _Tp |
b98fcf6e | 321 | max() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 322 | |
734f5023 | 323 | #if __cplusplus >= 201103L |
018afad3 ESR |
324 | /** A finite value x such that there is no other finite value y |
325 | * where y < x. */ | |
94a86be0 | 326 | static constexpr _Tp |
b98fcf6e | 327 | lowest() noexcept { return _Tp(); } |
018afad3 | 328 | #endif |
94a86be0 | 329 | |
bd2726e0 | 330 | /** The @e machine @e epsilon: the difference between 1 and the least |
94a86be0 BK |
331 | value greater than 1 that is representable. */ |
332 | static _GLIBCXX_CONSTEXPR _Tp | |
b98fcf6e | 333 | epsilon() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 334 | |
bd2726e0 | 335 | /** The maximum rounding error measurement (see LIA-1). */ |
94a86be0 | 336 | static _GLIBCXX_CONSTEXPR _Tp |
b98fcf6e | 337 | round_error() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 338 | |
bd2726e0 | 339 | /** The representation of positive infinity, if @c has_infinity. */ |
94a86be0 | 340 | static _GLIBCXX_CONSTEXPR _Tp |
b98fcf6e | 341 | infinity() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
2a60a9f6 | 342 | |
c0ffa2ba | 343 | /** The representation of a quiet Not a Number, |
2a60a9f6 | 344 | if @c has_quiet_NaN. */ |
94a86be0 | 345 | static _GLIBCXX_CONSTEXPR _Tp |
b98fcf6e | 346 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 347 | |
c0ffa2ba | 348 | /** The representation of a signaling Not a Number, if |
94a86be0 BK |
349 | @c has_signaling_NaN. */ |
350 | static _GLIBCXX_CONSTEXPR _Tp | |
b98fcf6e | 351 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
94a86be0 | 352 | |
bd2726e0 | 353 | /** The minimum positive denormalized value. For types where |
94a86be0 | 354 | @c has_denorm is false, this is the minimum positive normalized |
bd2726e0 | 355 | value. */ |
94a86be0 | 356 | static _GLIBCXX_CONSTEXPR _Tp |
b98fcf6e | 357 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } |
54c1bf78 BK |
358 | }; |
359 | ||
45e20696 JW |
360 | // _GLIBCXX_RESOLVE_LIB_DEFECTS |
361 | // 559. numeric_limits<const T> | |
362 | ||
ce4674f2 PC |
363 | template<typename _Tp> |
364 | struct numeric_limits<const _Tp> | |
365 | : public numeric_limits<_Tp> { }; | |
366 | ||
367 | template<typename _Tp> | |
368 | struct numeric_limits<volatile _Tp> | |
369 | : public numeric_limits<_Tp> { }; | |
370 | ||
371 | template<typename _Tp> | |
372 | struct numeric_limits<const volatile _Tp> | |
373 | : public numeric_limits<_Tp> { }; | |
ce4674f2 PC |
374 | |
375 | // Now there follow 16 explicit specializations. Yes, 16. Make sure | |
45e20696 | 376 | // you get the count right. (18 in C++11 mode, with char16_t and char32_t.) |
c124af93 | 377 | // (+1 if char8_t is enabled.) |
45e20696 JW |
378 | |
379 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
380 | // 184. numeric_limits<bool> wording problems | |
0aa06b18 BK |
381 | |
382 | /// numeric_limits<bool> specialization. | |
54c1bf78 BK |
383 | template<> |
384 | struct numeric_limits<bool> | |
385 | { | |
94a86be0 BK |
386 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
387 | ||
33ac58d5 | 388 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 389 | min() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 | 390 | |
33ac58d5 | 391 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 392 | max() _GLIBCXX_USE_NOEXCEPT { return true; } |
54c1bf78 | 393 | |
734f5023 | 394 | #if __cplusplus >= 201103L |
94a86be0 | 395 | static constexpr bool |
4d4cf144 | 396 | lowest() noexcept { return min(); } |
018afad3 | 397 | #endif |
94a86be0 BK |
398 | static _GLIBCXX_USE_CONSTEXPR int digits = 1; |
399 | static _GLIBCXX_USE_CONSTEXPR int digits10 = 0; | |
734f5023 | 400 | #if __cplusplus >= 201103L |
94a86be0 | 401 | static constexpr int max_digits10 = 0; |
018afad3 | 402 | #endif |
94a86be0 BK |
403 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
404 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
405 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
406 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
407 | ||
33ac58d5 | 408 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 409 | epsilon() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 | 410 | |
33ac58d5 | 411 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 412 | round_error() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 BK |
413 | |
414 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
415 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
416 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
417 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
418 | ||
419 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
420 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
421 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 422 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
423 | = denorm_absent; |
424 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
425 | ||
33ac58d5 | 426 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 427 | infinity() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 | 428 | |
33ac58d5 | 429 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 430 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 | 431 | |
33ac58d5 | 432 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 433 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 | 434 | |
33ac58d5 | 435 | static _GLIBCXX_CONSTEXPR bool |
4d4cf144 | 436 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return false; } |
94a86be0 BK |
437 | |
438 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
439 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
440 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; | |
54c1bf78 BK |
441 | |
442 | // It is not clear what it means for a boolean type to trap. | |
443 | // This is a DR on the LWG issue list. Here, I use integer | |
444 | // promotion semantics. | |
94a86be0 BK |
445 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; |
446 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 447 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 448 | = round_toward_zero; |
54c1bf78 BK |
449 | }; |
450 | ||
0aa06b18 | 451 | /// numeric_limits<char> specialization. |
54c1bf78 BK |
452 | template<> |
453 | struct numeric_limits<char> | |
454 | { | |
94a86be0 BK |
455 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
456 | ||
33ac58d5 | 457 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 458 | min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min(char); } |
94a86be0 | 459 | |
33ac58d5 | 460 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 461 | max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max(char); } |
54c1bf78 | 462 | |
734f5023 | 463 | #if __cplusplus >= 201103L |
33ac58d5 | 464 | static constexpr char |
4d4cf144 | 465 | lowest() noexcept { return min(); } |
018afad3 | 466 | #endif |
54c1bf78 | 467 | |
94a86be0 BK |
468 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char); |
469 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char); | |
734f5023 | 470 | #if __cplusplus >= 201103L |
94a86be0 | 471 | static constexpr int max_digits10 = 0; |
018afad3 | 472 | #endif |
94a86be0 BK |
473 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char); |
474 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
475 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
476 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
477 | ||
33ac58d5 | 478 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 479 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 480 | |
33ac58d5 | 481 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 482 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
483 | |
484 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
485 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
486 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
487 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
488 | ||
489 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
490 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
491 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 492 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
493 | = denorm_absent; |
494 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
495 | ||
33ac58d5 | 496 | static _GLIBCXX_CONSTEXPR |
4d4cf144 | 497 | char infinity() _GLIBCXX_USE_NOEXCEPT { return char(); } |
94a86be0 | 498 | |
33ac58d5 | 499 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 500 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); } |
94a86be0 | 501 | |
33ac58d5 | 502 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 503 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); } |
94a86be0 | 504 | |
33ac58d5 | 505 | static _GLIBCXX_CONSTEXPR char |
4d4cf144 | 506 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<char>(0); } |
94a86be0 BK |
507 | |
508 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
509 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 510 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; |
94a86be0 BK |
511 | |
512 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
513 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 514 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 515 | = round_toward_zero; |
54c1bf78 BK |
516 | }; |
517 | ||
0aa06b18 | 518 | /// numeric_limits<signed char> specialization. |
54c1bf78 BK |
519 | template<> |
520 | struct numeric_limits<signed char> | |
521 | { | |
94a86be0 BK |
522 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
523 | ||
33ac58d5 | 524 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 525 | min() _GLIBCXX_USE_NOEXCEPT { return -__SCHAR_MAX__ - 1; } |
94a86be0 | 526 | |
33ac58d5 | 527 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 528 | max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__; } |
54c1bf78 | 529 | |
734f5023 | 530 | #if __cplusplus >= 201103L |
33ac58d5 | 531 | static constexpr signed char |
4d4cf144 | 532 | lowest() noexcept { return min(); } |
018afad3 | 533 | #endif |
54c1bf78 | 534 | |
94a86be0 | 535 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (signed char); |
33ac58d5 | 536 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 537 | = __glibcxx_digits10 (signed char); |
734f5023 | 538 | #if __cplusplus >= 201103L |
94a86be0 | 539 | static constexpr int max_digits10 = 0; |
018afad3 | 540 | #endif |
94a86be0 BK |
541 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
542 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
543 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
544 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
545 | ||
33ac58d5 | 546 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 547 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 548 | |
33ac58d5 | 549 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 550 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
551 | |
552 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
553 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
554 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
555 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
556 | ||
557 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
558 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
559 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 560 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
561 | = denorm_absent; |
562 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
563 | ||
33ac58d5 | 564 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 565 | infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); } |
94a86be0 | 566 | |
33ac58d5 | 567 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 | 568 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); } |
94a86be0 | 569 | |
33ac58d5 | 570 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 PC |
571 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
572 | { return static_cast<signed char>(0); } | |
94a86be0 | 573 | |
33ac58d5 | 574 | static _GLIBCXX_CONSTEXPR signed char |
4d4cf144 PC |
575 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
576 | { return static_cast<signed char>(0); } | |
94a86be0 BK |
577 | |
578 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
579 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 580 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
94a86be0 BK |
581 | |
582 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
583 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 584 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 585 | = round_toward_zero; |
54c1bf78 BK |
586 | }; |
587 | ||
0aa06b18 | 588 | /// numeric_limits<unsigned char> specialization. |
54c1bf78 BK |
589 | template<> |
590 | struct numeric_limits<unsigned char> | |
591 | { | |
94a86be0 BK |
592 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
593 | ||
33ac58d5 | 594 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 | 595 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 596 | |
33ac58d5 | 597 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 | 598 | max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__ * 2U + 1; } |
54c1bf78 | 599 | |
734f5023 | 600 | #if __cplusplus >= 201103L |
33ac58d5 | 601 | static constexpr unsigned char |
4d4cf144 | 602 | lowest() noexcept { return min(); } |
018afad3 | 603 | #endif |
54c1bf78 | 604 | |
33ac58d5 | 605 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 606 | = __glibcxx_digits (unsigned char); |
33ac58d5 | 607 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 608 | = __glibcxx_digits10 (unsigned char); |
734f5023 | 609 | #if __cplusplus >= 201103L |
94a86be0 | 610 | static constexpr int max_digits10 = 0; |
018afad3 | 611 | #endif |
94a86be0 BK |
612 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
613 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
614 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
615 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
616 | ||
33ac58d5 | 617 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 | 618 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 619 | |
33ac58d5 | 620 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 | 621 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
622 | |
623 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
624 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
625 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
626 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
627 | ||
628 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
629 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
630 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 631 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
632 | = denorm_absent; |
633 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
634 | ||
33ac58d5 | 635 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 PC |
636 | infinity() _GLIBCXX_USE_NOEXCEPT |
637 | { return static_cast<unsigned char>(0); } | |
94a86be0 | 638 | |
33ac58d5 | 639 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 PC |
640 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT |
641 | { return static_cast<unsigned char>(0); } | |
94a86be0 | 642 | |
33ac58d5 | 643 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 PC |
644 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
645 | { return static_cast<unsigned char>(0); } | |
94a86be0 | 646 | |
33ac58d5 | 647 | static _GLIBCXX_CONSTEXPR unsigned char |
4d4cf144 PC |
648 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
649 | { return static_cast<unsigned char>(0); } | |
94a86be0 BK |
650 | |
651 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
652 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
653 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; | |
654 | ||
655 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
656 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 657 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 658 | = round_toward_zero; |
54c1bf78 BK |
659 | }; |
660 | ||
0aa06b18 | 661 | /// numeric_limits<wchar_t> specialization. |
54c1bf78 BK |
662 | template<> |
663 | struct numeric_limits<wchar_t> | |
664 | { | |
94a86be0 BK |
665 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
666 | ||
33ac58d5 | 667 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 668 | min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (wchar_t); } |
94a86be0 | 669 | |
33ac58d5 | 670 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 671 | max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (wchar_t); } |
54c1bf78 | 672 | |
734f5023 | 673 | #if __cplusplus >= 201103L |
4d4cf144 PC |
674 | static constexpr wchar_t |
675 | lowest() noexcept { return min(); } | |
018afad3 | 676 | #endif |
54c1bf78 | 677 | |
94a86be0 | 678 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (wchar_t); |
33ac58d5 | 679 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 680 | = __glibcxx_digits10 (wchar_t); |
734f5023 | 681 | #if __cplusplus >= 201103L |
94a86be0 | 682 | static constexpr int max_digits10 = 0; |
018afad3 | 683 | #endif |
94a86be0 BK |
684 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (wchar_t); |
685 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
686 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
687 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
688 | ||
33ac58d5 | 689 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 690 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 691 | |
33ac58d5 | 692 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 693 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
694 | |
695 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
696 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
697 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
698 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
699 | ||
700 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
701 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
702 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 703 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
704 | = denorm_absent; |
705 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
706 | ||
33ac58d5 | 707 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 708 | infinity() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } |
94a86be0 | 709 | |
33ac58d5 | 710 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 711 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } |
94a86be0 | 712 | |
33ac58d5 | 713 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 714 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } |
94a86be0 | 715 | |
33ac58d5 | 716 | static _GLIBCXX_CONSTEXPR wchar_t |
4d4cf144 | 717 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } |
94a86be0 BK |
718 | |
719 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
720 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 721 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; |
94a86be0 BK |
722 | |
723 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
724 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 725 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 726 | = round_toward_zero; |
54c1bf78 BK |
727 | }; |
728 | ||
c124af93 TH |
729 | #if _GLIBCXX_USE_CHAR8_T |
730 | /// numeric_limits<char8_t> specialization. | |
731 | template<> | |
732 | struct numeric_limits<char8_t> | |
733 | { | |
734 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; | |
735 | ||
736 | static _GLIBCXX_CONSTEXPR char8_t | |
737 | min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (char8_t); } | |
738 | ||
739 | static _GLIBCXX_CONSTEXPR char8_t | |
740 | max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (char8_t); } | |
741 | ||
742 | static _GLIBCXX_CONSTEXPR char8_t | |
743 | lowest() _GLIBCXX_USE_NOEXCEPT { return min(); } | |
744 | ||
745 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char8_t); | |
746 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char8_t); | |
747 | static _GLIBCXX_USE_CONSTEXPR int max_digits10 = 0; | |
748 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char8_t); | |
749 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
750 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
751 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
752 | ||
753 | static _GLIBCXX_CONSTEXPR char8_t | |
754 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } | |
755 | ||
756 | static _GLIBCXX_CONSTEXPR char8_t | |
757 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } | |
758 | ||
759 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
760 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
761 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
762 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
763 | ||
764 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
765 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
766 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
767 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm | |
768 | = denorm_absent; | |
769 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
770 | ||
771 | static _GLIBCXX_CONSTEXPR char8_t | |
772 | infinity() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } | |
773 | ||
774 | static _GLIBCXX_CONSTEXPR char8_t | |
775 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } | |
776 | ||
777 | static _GLIBCXX_CONSTEXPR char8_t | |
778 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } | |
779 | ||
780 | static _GLIBCXX_CONSTEXPR char8_t | |
781 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } | |
782 | ||
783 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
784 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
785 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; | |
786 | ||
787 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
788 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
789 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style | |
790 | = round_toward_zero; | |
791 | }; | |
792 | #endif | |
793 | ||
734f5023 | 794 | #if __cplusplus >= 201103L |
5fb0445d PC |
795 | /// numeric_limits<char16_t> specialization. |
796 | template<> | |
797 | struct numeric_limits<char16_t> | |
798 | { | |
4d4cf144 | 799 | static constexpr bool is_specialized = true; |
94a86be0 | 800 | |
33ac58d5 | 801 | static constexpr char16_t |
4d4cf144 | 802 | min() noexcept { return __glibcxx_min (char16_t); } |
94a86be0 | 803 | |
33ac58d5 | 804 | static constexpr char16_t |
4d4cf144 | 805 | max() noexcept { return __glibcxx_max (char16_t); } |
5fb0445d | 806 | |
33ac58d5 | 807 | static constexpr char16_t |
4d4cf144 | 808 | lowest() noexcept { return min(); } |
5fb0445d | 809 | |
4d4cf144 PC |
810 | static constexpr int digits = __glibcxx_digits (char16_t); |
811 | static constexpr int digits10 = __glibcxx_digits10 (char16_t); | |
94a86be0 | 812 | static constexpr int max_digits10 = 0; |
4d4cf144 PC |
813 | static constexpr bool is_signed = __glibcxx_signed (char16_t); |
814 | static constexpr bool is_integer = true; | |
815 | static constexpr bool is_exact = true; | |
816 | static constexpr int radix = 2; | |
94a86be0 | 817 | |
33ac58d5 | 818 | static constexpr char16_t |
4d4cf144 | 819 | epsilon() noexcept { return 0; } |
94a86be0 | 820 | |
33ac58d5 | 821 | static constexpr char16_t |
4d4cf144 | 822 | round_error() noexcept { return 0; } |
94a86be0 | 823 | |
4d4cf144 PC |
824 | static constexpr int min_exponent = 0; |
825 | static constexpr int min_exponent10 = 0; | |
826 | static constexpr int max_exponent = 0; | |
827 | static constexpr int max_exponent10 = 0; | |
94a86be0 | 828 | |
4d4cf144 PC |
829 | static constexpr bool has_infinity = false; |
830 | static constexpr bool has_quiet_NaN = false; | |
831 | static constexpr bool has_signaling_NaN = false; | |
832 | static constexpr float_denorm_style has_denorm = denorm_absent; | |
833 | static constexpr bool has_denorm_loss = false; | |
94a86be0 | 834 | |
33ac58d5 | 835 | static constexpr char16_t |
4d4cf144 | 836 | infinity() noexcept { return char16_t(); } |
94a86be0 | 837 | |
33ac58d5 | 838 | static constexpr char16_t |
4d4cf144 | 839 | quiet_NaN() noexcept { return char16_t(); } |
94a86be0 | 840 | |
33ac58d5 | 841 | static constexpr char16_t |
4d4cf144 | 842 | signaling_NaN() noexcept { return char16_t(); } |
94a86be0 | 843 | |
33ac58d5 | 844 | static constexpr char16_t |
4d4cf144 | 845 | denorm_min() noexcept { return char16_t(); } |
94a86be0 | 846 | |
4d4cf144 PC |
847 | static constexpr bool is_iec559 = false; |
848 | static constexpr bool is_bounded = true; | |
1c830087 | 849 | static constexpr bool is_modulo = !is_signed; |
94a86be0 | 850 | |
4d4cf144 PC |
851 | static constexpr bool traps = __glibcxx_integral_traps; |
852 | static constexpr bool tinyness_before = false; | |
853 | static constexpr float_round_style round_style = round_toward_zero; | |
5fb0445d PC |
854 | }; |
855 | ||
856 | /// numeric_limits<char32_t> specialization. | |
857 | template<> | |
858 | struct numeric_limits<char32_t> | |
859 | { | |
4d4cf144 | 860 | static constexpr bool is_specialized = true; |
94a86be0 | 861 | |
33ac58d5 | 862 | static constexpr char32_t |
4d4cf144 | 863 | min() noexcept { return __glibcxx_min (char32_t); } |
94a86be0 | 864 | |
33ac58d5 | 865 | static constexpr char32_t |
4d4cf144 | 866 | max() noexcept { return __glibcxx_max (char32_t); } |
5fb0445d | 867 | |
33ac58d5 | 868 | static constexpr char32_t |
4d4cf144 | 869 | lowest() noexcept { return min(); } |
5fb0445d | 870 | |
4d4cf144 PC |
871 | static constexpr int digits = __glibcxx_digits (char32_t); |
872 | static constexpr int digits10 = __glibcxx_digits10 (char32_t); | |
94a86be0 | 873 | static constexpr int max_digits10 = 0; |
4d4cf144 PC |
874 | static constexpr bool is_signed = __glibcxx_signed (char32_t); |
875 | static constexpr bool is_integer = true; | |
876 | static constexpr bool is_exact = true; | |
877 | static constexpr int radix = 2; | |
94a86be0 | 878 | |
33ac58d5 | 879 | static constexpr char32_t |
4d4cf144 | 880 | epsilon() noexcept { return 0; } |
94a86be0 | 881 | |
33ac58d5 | 882 | static constexpr char32_t |
4d4cf144 | 883 | round_error() noexcept { return 0; } |
94a86be0 | 884 | |
4d4cf144 PC |
885 | static constexpr int min_exponent = 0; |
886 | static constexpr int min_exponent10 = 0; | |
887 | static constexpr int max_exponent = 0; | |
888 | static constexpr int max_exponent10 = 0; | |
94a86be0 | 889 | |
4d4cf144 PC |
890 | static constexpr bool has_infinity = false; |
891 | static constexpr bool has_quiet_NaN = false; | |
892 | static constexpr bool has_signaling_NaN = false; | |
893 | static constexpr float_denorm_style has_denorm = denorm_absent; | |
894 | static constexpr bool has_denorm_loss = false; | |
94a86be0 | 895 | |
33ac58d5 | 896 | static constexpr char32_t |
4d4cf144 | 897 | infinity() noexcept { return char32_t(); } |
94a86be0 | 898 | |
33ac58d5 | 899 | static constexpr char32_t |
4d4cf144 | 900 | quiet_NaN() noexcept { return char32_t(); } |
94a86be0 | 901 | |
33ac58d5 | 902 | static constexpr char32_t |
4d4cf144 | 903 | signaling_NaN() noexcept { return char32_t(); } |
94a86be0 | 904 | |
33ac58d5 | 905 | static constexpr char32_t |
4d4cf144 | 906 | denorm_min() noexcept { return char32_t(); } |
94a86be0 | 907 | |
4d4cf144 PC |
908 | static constexpr bool is_iec559 = false; |
909 | static constexpr bool is_bounded = true; | |
1c830087 | 910 | static constexpr bool is_modulo = !is_signed; |
94a86be0 | 911 | |
4d4cf144 PC |
912 | static constexpr bool traps = __glibcxx_integral_traps; |
913 | static constexpr bool tinyness_before = false; | |
914 | static constexpr float_round_style round_style = round_toward_zero; | |
5fb0445d PC |
915 | }; |
916 | #endif | |
917 | ||
0aa06b18 | 918 | /// numeric_limits<short> specialization. |
54c1bf78 BK |
919 | template<> |
920 | struct numeric_limits<short> | |
921 | { | |
94a86be0 BK |
922 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
923 | ||
33ac58d5 | 924 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 925 | min() _GLIBCXX_USE_NOEXCEPT { return -__SHRT_MAX__ - 1; } |
94a86be0 | 926 | |
33ac58d5 | 927 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 928 | max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__; } |
54c1bf78 | 929 | |
734f5023 | 930 | #if __cplusplus >= 201103L |
33ac58d5 | 931 | static constexpr short |
4d4cf144 | 932 | lowest() noexcept { return min(); } |
018afad3 | 933 | #endif |
54c1bf78 | 934 | |
94a86be0 BK |
935 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (short); |
936 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (short); | |
734f5023 | 937 | #if __cplusplus >= 201103L |
94a86be0 | 938 | static constexpr int max_digits10 = 0; |
018afad3 | 939 | #endif |
94a86be0 BK |
940 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
941 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
942 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
943 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
944 | ||
33ac58d5 | 945 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 946 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 947 | |
33ac58d5 | 948 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 949 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
950 | |
951 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
952 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
953 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
954 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
955 | ||
956 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
957 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
958 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 959 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
960 | = denorm_absent; |
961 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
962 | ||
33ac58d5 | 963 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 964 | infinity() _GLIBCXX_USE_NOEXCEPT { return short(); } |
94a86be0 | 965 | |
33ac58d5 | 966 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 967 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); } |
94a86be0 | 968 | |
33ac58d5 | 969 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 970 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); } |
94a86be0 | 971 | |
33ac58d5 | 972 | static _GLIBCXX_CONSTEXPR short |
4d4cf144 | 973 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return short(); } |
94a86be0 BK |
974 | |
975 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
976 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 977 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
94a86be0 BK |
978 | |
979 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
980 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 981 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 982 | = round_toward_zero; |
54c1bf78 BK |
983 | }; |
984 | ||
0aa06b18 | 985 | /// numeric_limits<unsigned short> specialization. |
54c1bf78 BK |
986 | template<> |
987 | struct numeric_limits<unsigned short> | |
988 | { | |
94a86be0 BK |
989 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
990 | ||
33ac58d5 | 991 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 | 992 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 993 | |
33ac58d5 | 994 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 | 995 | max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__ * 2U + 1; } |
54c1bf78 | 996 | |
734f5023 | 997 | #if __cplusplus >= 201103L |
33ac58d5 | 998 | static constexpr unsigned short |
4d4cf144 | 999 | lowest() noexcept { return min(); } |
018afad3 | 1000 | #endif |
54c1bf78 | 1001 | |
33ac58d5 | 1002 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 1003 | = __glibcxx_digits (unsigned short); |
33ac58d5 | 1004 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 1005 | = __glibcxx_digits10 (unsigned short); |
734f5023 | 1006 | #if __cplusplus >= 201103L |
94a86be0 | 1007 | static constexpr int max_digits10 = 0; |
018afad3 | 1008 | #endif |
94a86be0 BK |
1009 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
1010 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1011 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1012 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1013 | ||
33ac58d5 | 1014 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 | 1015 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1016 | |
33ac58d5 | 1017 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 | 1018 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1019 | |
1020 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1021 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1022 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1023 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1024 | ||
1025 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1026 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1027 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1028 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1029 | = denorm_absent; |
1030 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1031 | ||
33ac58d5 | 1032 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 PC |
1033 | infinity() _GLIBCXX_USE_NOEXCEPT |
1034 | { return static_cast<unsigned short>(0); } | |
94a86be0 | 1035 | |
33ac58d5 | 1036 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 PC |
1037 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT |
1038 | { return static_cast<unsigned short>(0); } | |
94a86be0 | 1039 | |
33ac58d5 | 1040 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 PC |
1041 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
1042 | { return static_cast<unsigned short>(0); } | |
94a86be0 | 1043 | |
33ac58d5 | 1044 | static _GLIBCXX_CONSTEXPR unsigned short |
4d4cf144 PC |
1045 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
1046 | { return static_cast<unsigned short>(0); } | |
94a86be0 BK |
1047 | |
1048 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1049 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1050 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; | |
1051 | ||
1052 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1053 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1054 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1055 | = round_toward_zero; |
54c1bf78 BK |
1056 | }; |
1057 | ||
0aa06b18 | 1058 | /// numeric_limits<int> specialization. |
54c1bf78 BK |
1059 | template<> |
1060 | struct numeric_limits<int> | |
1061 | { | |
94a86be0 BK |
1062 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1063 | ||
33ac58d5 | 1064 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1065 | min() _GLIBCXX_USE_NOEXCEPT { return -__INT_MAX__ - 1; } |
94a86be0 | 1066 | |
33ac58d5 | 1067 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1068 | max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__; } |
54c1bf78 | 1069 | |
734f5023 | 1070 | #if __cplusplus >= 201103L |
33ac58d5 | 1071 | static constexpr int |
4d4cf144 | 1072 | lowest() noexcept { return min(); } |
018afad3 | 1073 | #endif |
54c1bf78 | 1074 | |
94a86be0 BK |
1075 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (int); |
1076 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (int); | |
734f5023 | 1077 | #if __cplusplus >= 201103L |
94a86be0 | 1078 | static constexpr int max_digits10 = 0; |
018afad3 | 1079 | #endif |
94a86be0 BK |
1080 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1081 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1082 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1083 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1084 | ||
33ac58d5 | 1085 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1086 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1087 | |
33ac58d5 | 1088 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1089 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1090 | |
1091 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1092 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1093 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1094 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1095 | ||
1096 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1097 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1098 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1099 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1100 | = denorm_absent; |
1101 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1102 | ||
33ac58d5 | 1103 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1104 | infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); } |
94a86be0 | 1105 | |
33ac58d5 | 1106 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1107 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); } |
94a86be0 | 1108 | |
33ac58d5 | 1109 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1110 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); } |
94a86be0 | 1111 | |
33ac58d5 | 1112 | static _GLIBCXX_CONSTEXPR int |
4d4cf144 | 1113 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); } |
94a86be0 BK |
1114 | |
1115 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1116 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 1117 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
94a86be0 BK |
1118 | |
1119 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1120 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1121 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1122 | = round_toward_zero; |
54c1bf78 BK |
1123 | }; |
1124 | ||
0aa06b18 | 1125 | /// numeric_limits<unsigned int> specialization. |
54c1bf78 BK |
1126 | template<> |
1127 | struct numeric_limits<unsigned int> | |
1128 | { | |
94a86be0 BK |
1129 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1130 | ||
33ac58d5 | 1131 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 | 1132 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1133 | |
33ac58d5 | 1134 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 | 1135 | max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__ * 2U + 1; } |
54c1bf78 | 1136 | |
734f5023 | 1137 | #if __cplusplus >= 201103L |
33ac58d5 | 1138 | static constexpr unsigned int |
4d4cf144 | 1139 | lowest() noexcept { return min(); } |
018afad3 | 1140 | #endif |
54c1bf78 | 1141 | |
33ac58d5 | 1142 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 1143 | = __glibcxx_digits (unsigned int); |
33ac58d5 | 1144 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 1145 | = __glibcxx_digits10 (unsigned int); |
734f5023 | 1146 | #if __cplusplus >= 201103L |
94a86be0 | 1147 | static constexpr int max_digits10 = 0; |
018afad3 | 1148 | #endif |
94a86be0 BK |
1149 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
1150 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1151 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1152 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1153 | ||
33ac58d5 | 1154 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 | 1155 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1156 | |
33ac58d5 | 1157 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 | 1158 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1159 | |
1160 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1161 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1162 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1163 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1164 | ||
1165 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1166 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1167 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1168 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1169 | = denorm_absent; |
1170 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1171 | ||
33ac58d5 | 1172 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 | 1173 | infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<unsigned int>(0); } |
94a86be0 | 1174 | |
33ac58d5 | 1175 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 PC |
1176 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT |
1177 | { return static_cast<unsigned int>(0); } | |
94a86be0 | 1178 | |
33ac58d5 | 1179 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 PC |
1180 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
1181 | { return static_cast<unsigned int>(0); } | |
94a86be0 | 1182 | |
33ac58d5 | 1183 | static _GLIBCXX_CONSTEXPR unsigned int |
4d4cf144 PC |
1184 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
1185 | { return static_cast<unsigned int>(0); } | |
94a86be0 BK |
1186 | |
1187 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1188 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1189 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; | |
1190 | ||
1191 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1192 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1193 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1194 | = round_toward_zero; |
54c1bf78 BK |
1195 | }; |
1196 | ||
0aa06b18 | 1197 | /// numeric_limits<long> specialization. |
54c1bf78 BK |
1198 | template<> |
1199 | struct numeric_limits<long> | |
1200 | { | |
94a86be0 BK |
1201 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1202 | ||
1203 | static _GLIBCXX_CONSTEXPR long | |
4d4cf144 | 1204 | min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_MAX__ - 1; } |
94a86be0 | 1205 | |
33ac58d5 | 1206 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1207 | max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__; } |
54c1bf78 | 1208 | |
734f5023 | 1209 | #if __cplusplus >= 201103L |
33ac58d5 | 1210 | static constexpr long |
4d4cf144 | 1211 | lowest() noexcept { return min(); } |
018afad3 | 1212 | #endif |
54c1bf78 | 1213 | |
94a86be0 BK |
1214 | static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (long); |
1215 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (long); | |
734f5023 | 1216 | #if __cplusplus >= 201103L |
94a86be0 | 1217 | static constexpr int max_digits10 = 0; |
018afad3 | 1218 | #endif |
94a86be0 BK |
1219 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1220 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1221 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1222 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1223 | ||
33ac58d5 | 1224 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1225 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1226 | |
33ac58d5 | 1227 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1228 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1229 | |
1230 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1231 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1232 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1233 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1234 | ||
1235 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1236 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1237 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1238 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1239 | = denorm_absent; |
1240 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1241 | ||
33ac58d5 | 1242 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1243 | infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); } |
94a86be0 | 1244 | |
33ac58d5 | 1245 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1246 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); } |
94a86be0 | 1247 | |
33ac58d5 | 1248 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1249 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); } |
94a86be0 | 1250 | |
33ac58d5 | 1251 | static _GLIBCXX_CONSTEXPR long |
4d4cf144 | 1252 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); } |
94a86be0 BK |
1253 | |
1254 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1255 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 1256 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
94a86be0 BK |
1257 | |
1258 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1259 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1260 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1261 | = round_toward_zero; |
54c1bf78 BK |
1262 | }; |
1263 | ||
0aa06b18 | 1264 | /// numeric_limits<unsigned long> specialization. |
54c1bf78 BK |
1265 | template<> |
1266 | struct numeric_limits<unsigned long> | |
1267 | { | |
94a86be0 BK |
1268 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1269 | ||
33ac58d5 | 1270 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 | 1271 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1272 | |
33ac58d5 | 1273 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 | 1274 | max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__ * 2UL + 1; } |
54c1bf78 | 1275 | |
734f5023 | 1276 | #if __cplusplus >= 201103L |
33ac58d5 | 1277 | static constexpr unsigned long |
4d4cf144 | 1278 | lowest() noexcept { return min(); } |
018afad3 | 1279 | #endif |
54c1bf78 | 1280 | |
33ac58d5 | 1281 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 1282 | = __glibcxx_digits (unsigned long); |
33ac58d5 | 1283 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 1284 | = __glibcxx_digits10 (unsigned long); |
734f5023 | 1285 | #if __cplusplus >= 201103L |
94a86be0 | 1286 | static constexpr int max_digits10 = 0; |
018afad3 | 1287 | #endif |
94a86be0 BK |
1288 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
1289 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1290 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1291 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1292 | ||
33ac58d5 | 1293 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 | 1294 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1295 | |
33ac58d5 | 1296 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 | 1297 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1298 | |
1299 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1300 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1301 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1302 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1303 | ||
1304 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1305 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1306 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1307 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1308 | = denorm_absent; |
1309 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1310 | ||
33ac58d5 | 1311 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 PC |
1312 | infinity() _GLIBCXX_USE_NOEXCEPT |
1313 | { return static_cast<unsigned long>(0); } | |
94a86be0 | 1314 | |
33ac58d5 | 1315 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 PC |
1316 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT |
1317 | { return static_cast<unsigned long>(0); } | |
94a86be0 | 1318 | |
33ac58d5 | 1319 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 PC |
1320 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
1321 | { return static_cast<unsigned long>(0); } | |
94a86be0 | 1322 | |
33ac58d5 | 1323 | static _GLIBCXX_CONSTEXPR unsigned long |
4d4cf144 PC |
1324 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
1325 | { return static_cast<unsigned long>(0); } | |
94a86be0 BK |
1326 | |
1327 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1328 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1329 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; | |
1330 | ||
1331 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1332 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1333 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1334 | = round_toward_zero; |
54c1bf78 BK |
1335 | }; |
1336 | ||
0aa06b18 | 1337 | /// numeric_limits<long long> specialization. |
54c1bf78 BK |
1338 | template<> |
1339 | struct numeric_limits<long long> | |
1340 | { | |
94a86be0 BK |
1341 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1342 | ||
33ac58d5 | 1343 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1344 | min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_LONG_MAX__ - 1; } |
94a86be0 | 1345 | |
33ac58d5 | 1346 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1347 | max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__; } |
6ad8f949 | 1348 | |
734f5023 | 1349 | #if __cplusplus >= 201103L |
33ac58d5 | 1350 | static constexpr long long |
4d4cf144 | 1351 | lowest() noexcept { return min(); } |
018afad3 | 1352 | #endif |
6ad8f949 | 1353 | |
33ac58d5 | 1354 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 1355 | = __glibcxx_digits (long long); |
33ac58d5 | 1356 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 1357 | = __glibcxx_digits10 (long long); |
734f5023 | 1358 | #if __cplusplus >= 201103L |
94a86be0 | 1359 | static constexpr int max_digits10 = 0; |
018afad3 | 1360 | #endif |
94a86be0 BK |
1361 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1362 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1363 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1364 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1365 | ||
33ac58d5 | 1366 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1367 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1368 | |
33ac58d5 | 1369 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1370 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1371 | |
1372 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1373 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1374 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1375 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1376 | ||
1377 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1378 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1379 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1380 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1381 | = denorm_absent; |
1382 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1383 | ||
33ac58d5 | 1384 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1385 | infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); } |
94a86be0 | 1386 | |
33ac58d5 | 1387 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1388 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); } |
94a86be0 | 1389 | |
33ac58d5 | 1390 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 PC |
1391 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
1392 | { return static_cast<long long>(0); } | |
94a86be0 | 1393 | |
33ac58d5 | 1394 | static _GLIBCXX_CONSTEXPR long long |
4d4cf144 | 1395 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); } |
94a86be0 BK |
1396 | |
1397 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1398 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1c830087 | 1399 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; |
94a86be0 BK |
1400 | |
1401 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1402 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1403 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1404 | = round_toward_zero; |
54c1bf78 BK |
1405 | }; |
1406 | ||
0aa06b18 | 1407 | /// numeric_limits<unsigned long long> specialization. |
54c1bf78 BK |
1408 | template<> |
1409 | struct numeric_limits<unsigned long long> | |
1410 | { | |
94a86be0 BK |
1411 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1412 | ||
33ac58d5 | 1413 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 | 1414 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1415 | |
33ac58d5 | 1416 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 | 1417 | max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__ * 2ULL + 1; } |
54c1bf78 | 1418 | |
734f5023 | 1419 | #if __cplusplus >= 201103L |
33ac58d5 | 1420 | static constexpr unsigned long long |
4d4cf144 | 1421 | lowest() noexcept { return min(); } |
018afad3 | 1422 | #endif |
54c1bf78 | 1423 | |
33ac58d5 | 1424 | static _GLIBCXX_USE_CONSTEXPR int digits |
94a86be0 | 1425 | = __glibcxx_digits (unsigned long long); |
33ac58d5 | 1426 | static _GLIBCXX_USE_CONSTEXPR int digits10 |
94a86be0 | 1427 | = __glibcxx_digits10 (unsigned long long); |
734f5023 | 1428 | #if __cplusplus >= 201103L |
94a86be0 | 1429 | static constexpr int max_digits10 = 0; |
018afad3 | 1430 | #endif |
94a86be0 BK |
1431 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; |
1432 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; | |
1433 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; | |
1434 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; | |
1435 | ||
33ac58d5 | 1436 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 | 1437 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 | 1438 | |
33ac58d5 | 1439 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 | 1440 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } |
94a86be0 BK |
1441 | |
1442 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; | |
1443 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; | |
1444 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; | |
1445 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; | |
1446 | ||
1447 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; | |
1448 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; | |
1449 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; | |
33ac58d5 | 1450 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm |
94a86be0 BK |
1451 | = denorm_absent; |
1452 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; | |
1453 | ||
33ac58d5 | 1454 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 PC |
1455 | infinity() _GLIBCXX_USE_NOEXCEPT |
1456 | { return static_cast<unsigned long long>(0); } | |
94a86be0 | 1457 | |
33ac58d5 | 1458 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 PC |
1459 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT |
1460 | { return static_cast<unsigned long long>(0); } | |
94a86be0 | 1461 | |
33ac58d5 | 1462 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 PC |
1463 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT |
1464 | { return static_cast<unsigned long long>(0); } | |
94a86be0 | 1465 | |
33ac58d5 | 1466 | static _GLIBCXX_CONSTEXPR unsigned long long |
4d4cf144 PC |
1467 | denorm_min() _GLIBCXX_USE_NOEXCEPT |
1468 | { return static_cast<unsigned long long>(0); } | |
94a86be0 BK |
1469 | |
1470 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; | |
1471 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1472 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; | |
1473 | ||
1474 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; | |
1475 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; | |
33ac58d5 | 1476 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1477 | = round_toward_zero; |
54c1bf78 BK |
1478 | }; |
1479 | ||
9ca8fefe | 1480 | #define __INT_N(TYPE, BITSIZE, EXT, UEXT) \ |
42167831 | 1481 | __extension__ \ |
9ca8fefe JW |
1482 | template<> \ |
1483 | struct numeric_limits<TYPE> \ | |
1484 | { \ | |
1485 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \ | |
1486 | \ | |
1487 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1488 | min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min_b (TYPE, BITSIZE); } \ | |
1489 | \ | |
1490 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1491 | max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max_b (TYPE, BITSIZE); } \ | |
1492 | \ | |
1493 | static _GLIBCXX_USE_CONSTEXPR int digits \ | |
1494 | = BITSIZE - 1; \ | |
1495 | static _GLIBCXX_USE_CONSTEXPR int digits10 \ | |
1496 | = (BITSIZE - 1) * 643L / 2136; \ | |
1497 | \ | |
1498 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; \ | |
1499 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \ | |
1500 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \ | |
1501 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; \ | |
1502 | \ | |
1503 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1504 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \ | |
1505 | \ | |
1506 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1507 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \ | |
1508 | \ | |
1509 | EXT \ | |
1510 | \ | |
1511 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \ | |
1512 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \ | |
1513 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \ | |
1514 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \ | |
1515 | \ | |
1516 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \ | |
1517 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \ | |
1518 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \ | |
1519 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \ | |
1520 | = denorm_absent; \ | |
1521 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \ | |
1522 | \ | |
1523 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1524 | infinity() _GLIBCXX_USE_NOEXCEPT \ | |
1525 | { return static_cast<TYPE>(0); } \ | |
1526 | \ | |
1527 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1528 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT \ | |
1529 | { return static_cast<TYPE>(0); } \ | |
1530 | \ | |
1531 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1532 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT \ | |
1533 | { return static_cast<TYPE>(0); } \ | |
1534 | \ | |
1535 | static _GLIBCXX_CONSTEXPR TYPE \ | |
1536 | denorm_min() _GLIBCXX_USE_NOEXCEPT \ | |
1537 | { return static_cast<TYPE>(0); } \ | |
161aa50e | 1538 | \ |
9ca8fefe JW |
1539 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \ |
1540 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \ | |
1541 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; \ | |
161aa50e | 1542 | \ |
9ca8fefe JW |
1543 | static _GLIBCXX_USE_CONSTEXPR bool traps \ |
1544 | = __glibcxx_integral_traps; \ | |
1545 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \ | |
1546 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \ | |
1547 | = round_toward_zero; \ | |
1548 | }; \ | |
1549 | \ | |
42167831 | 1550 | __extension__ \ |
9ca8fefe JW |
1551 | template<> \ |
1552 | struct numeric_limits<unsigned TYPE> \ | |
1553 | { \ | |
1554 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \ | |
1555 | \ | |
1556 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1557 | min() _GLIBCXX_USE_NOEXCEPT { return 0; } \ | |
1558 | \ | |
1559 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1560 | max() _GLIBCXX_USE_NOEXCEPT \ | |
1561 | { return __glibcxx_max_b (unsigned TYPE, BITSIZE); } \ | |
1562 | \ | |
1563 | UEXT \ | |
1564 | \ | |
1565 | static _GLIBCXX_USE_CONSTEXPR int digits \ | |
1566 | = BITSIZE; \ | |
1567 | static _GLIBCXX_USE_CONSTEXPR int digits10 \ | |
1568 | = BITSIZE * 643L / 2136; \ | |
1569 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; \ | |
1570 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \ | |
1571 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \ | |
1572 | static _GLIBCXX_USE_CONSTEXPR int radix = 2; \ | |
1573 | \ | |
1574 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1575 | epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \ | |
1576 | \ | |
1577 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1578 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \ | |
1579 | \ | |
1580 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \ | |
1581 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \ | |
1582 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \ | |
1583 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \ | |
1584 | \ | |
1585 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \ | |
1586 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \ | |
1587 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \ | |
1588 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \ | |
1589 | = denorm_absent; \ | |
1590 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \ | |
1591 | \ | |
1592 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1593 | infinity() _GLIBCXX_USE_NOEXCEPT \ | |
1594 | { return static_cast<unsigned TYPE>(0); } \ | |
1595 | \ | |
1596 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1597 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT \ | |
1598 | { return static_cast<unsigned TYPE>(0); } \ | |
1599 | \ | |
1600 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1601 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT \ | |
1602 | { return static_cast<unsigned TYPE>(0); } \ | |
1603 | \ | |
1604 | static _GLIBCXX_CONSTEXPR unsigned TYPE \ | |
1605 | denorm_min() _GLIBCXX_USE_NOEXCEPT \ | |
1606 | { return static_cast<unsigned TYPE>(0); } \ | |
1607 | \ | |
1608 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \ | |
1609 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \ | |
1610 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; \ | |
1611 | \ | |
1612 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; \ | |
1613 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \ | |
1614 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \ | |
1615 | = round_toward_zero; \ | |
78a7c317 | 1616 | }; |
12bfa8bd | 1617 | |
734f5023 | 1618 | #if __cplusplus >= 201103L |
12bfa8bd | 1619 | |
9ca8fefe JW |
1620 | #define __INT_N_201103(TYPE) \ |
1621 | static constexpr TYPE \ | |
1622 | lowest() noexcept { return min(); } \ | |
12bfa8bd | 1623 | static constexpr int max_digits10 = 0; |
12bfa8bd | 1624 | |
9ca8fefe JW |
1625 | #define __INT_N_U201103(TYPE) \ |
1626 | static constexpr unsigned TYPE \ | |
1627 | lowest() noexcept { return min(); } \ | |
78a7c317 | 1628 | static constexpr int max_digits10 = 0; |
12bfa8bd | 1629 | |
78a7c317 DD |
1630 | #else |
1631 | #define __INT_N_201103(TYPE) | |
1632 | #define __INT_N_U201103(TYPE) | |
12bfa8bd PC |
1633 | #endif |
1634 | ||
386fd16c | 1635 | #if !defined(__STRICT_ANSI__) |
78a7c317 DD |
1636 | #ifdef __GLIBCXX_TYPE_INT_N_0 |
1637 | __INT_N(__GLIBCXX_TYPE_INT_N_0, __GLIBCXX_BITSIZE_INT_N_0, | |
9ca8fefe JW |
1638 | __INT_N_201103 (__GLIBCXX_TYPE_INT_N_0), |
1639 | __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_0)) | |
78a7c317 DD |
1640 | #endif |
1641 | #ifdef __GLIBCXX_TYPE_INT_N_1 | |
1642 | __INT_N (__GLIBCXX_TYPE_INT_N_1, __GLIBCXX_BITSIZE_INT_N_1, | |
9ca8fefe JW |
1643 | __INT_N_201103 (__GLIBCXX_TYPE_INT_N_1), |
1644 | __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_1)) | |
78a7c317 DD |
1645 | #endif |
1646 | #ifdef __GLIBCXX_TYPE_INT_N_2 | |
1647 | __INT_N (__GLIBCXX_TYPE_INT_N_2, __GLIBCXX_BITSIZE_INT_N_2, | |
9ca8fefe JW |
1648 | __INT_N_201103 (__GLIBCXX_TYPE_INT_N_2), |
1649 | __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_2)) | |
78a7c317 DD |
1650 | #endif |
1651 | #ifdef __GLIBCXX_TYPE_INT_N_3 | |
1652 | __INT_N (__GLIBCXX_TYPE_INT_N_3, __GLIBCXX_BITSIZE_INT_N_3, | |
9ca8fefe JW |
1653 | __INT_N_201103 (__GLIBCXX_TYPE_INT_N_3), |
1654 | __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_3)) | |
12bfa8bd | 1655 | #endif |
12bfa8bd | 1656 | |
386fd16c JW |
1657 | #elif defined __STRICT_ANSI__ && defined __SIZEOF_INT128__ |
1658 | __INT_N(__int128, 128, | |
1659 | __INT_N_201103 (__int128), | |
1660 | __INT_N_U201103 (__int128)) | |
1661 | #endif | |
1662 | ||
78a7c317 DD |
1663 | #undef __INT_N |
1664 | #undef __INT_N_201103 | |
1665 | #undef __INT_N_U201103 | |
12bfa8bd | 1666 | |
12bfa8bd | 1667 | |
0aa06b18 | 1668 | /// numeric_limits<float> specialization. |
54c1bf78 BK |
1669 | template<> |
1670 | struct numeric_limits<float> | |
1671 | { | |
94a86be0 BK |
1672 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1673 | ||
33ac58d5 | 1674 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1675 | min() _GLIBCXX_USE_NOEXCEPT { return __FLT_MIN__; } |
94a86be0 | 1676 | |
33ac58d5 | 1677 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1678 | max() _GLIBCXX_USE_NOEXCEPT { return __FLT_MAX__; } |
54c1bf78 | 1679 | |
734f5023 | 1680 | #if __cplusplus >= 201103L |
33ac58d5 | 1681 | static constexpr float |
4d4cf144 | 1682 | lowest() noexcept { return -__FLT_MAX__; } |
018afad3 | 1683 | #endif |
54c1bf78 | 1684 | |
94a86be0 BK |
1685 | static _GLIBCXX_USE_CONSTEXPR int digits = __FLT_MANT_DIG__; |
1686 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __FLT_DIG__; | |
734f5023 | 1687 | #if __cplusplus >= 201103L |
94a86be0 | 1688 | static constexpr int max_digits10 |
018afad3 ESR |
1689 | = __glibcxx_max_digits10 (__FLT_MANT_DIG__); |
1690 | #endif | |
94a86be0 BK |
1691 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1692 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; | |
1693 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; | |
1694 | static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; | |
1695 | ||
33ac58d5 | 1696 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1697 | epsilon() _GLIBCXX_USE_NOEXCEPT { return __FLT_EPSILON__; } |
94a86be0 | 1698 | |
33ac58d5 | 1699 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1700 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5F; } |
94a86be0 BK |
1701 | |
1702 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = __FLT_MIN_EXP__; | |
1703 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __FLT_MIN_10_EXP__; | |
1704 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = __FLT_MAX_EXP__; | |
1705 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __FLT_MAX_10_EXP__; | |
1706 | ||
1707 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __FLT_HAS_INFINITY__; | |
1708 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __FLT_HAS_QUIET_NAN__; | |
1709 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; | |
1710 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm | |
264c41ed | 1711 | = bool(__FLT_HAS_DENORM__) ? denorm_present : denorm_absent; |
33ac58d5 | 1712 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss |
94a86be0 BK |
1713 | = __glibcxx_float_has_denorm_loss; |
1714 | ||
33ac58d5 | 1715 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1716 | infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_valf(); } |
54c1bf78 | 1717 | |
33ac58d5 | 1718 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1719 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanf(""); } |
94a86be0 | 1720 | |
33ac58d5 | 1721 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1722 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansf(""); } |
94a86be0 | 1723 | |
33ac58d5 | 1724 | static _GLIBCXX_CONSTEXPR float |
4d4cf144 | 1725 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return __FLT_DENORM_MIN__; } |
94a86be0 BK |
1726 | |
1727 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 | |
1728 | = has_infinity && has_quiet_NaN && has_denorm == denorm_present; | |
1729 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1730 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; | |
1731 | ||
1732 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_float_traps; | |
33ac58d5 | 1733 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before |
94a86be0 | 1734 | = __glibcxx_float_tinyness_before; |
33ac58d5 | 1735 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1736 | = round_to_nearest; |
54c1bf78 BK |
1737 | }; |
1738 | ||
2778669a PE |
1739 | #undef __glibcxx_float_has_denorm_loss |
1740 | #undef __glibcxx_float_traps | |
1741 | #undef __glibcxx_float_tinyness_before | |
54c1bf78 | 1742 | |
0aa06b18 | 1743 | /// numeric_limits<double> specialization. |
54c1bf78 BK |
1744 | template<> |
1745 | struct numeric_limits<double> | |
1746 | { | |
94a86be0 BK |
1747 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1748 | ||
33ac58d5 | 1749 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1750 | min() _GLIBCXX_USE_NOEXCEPT { return __DBL_MIN__; } |
94a86be0 | 1751 | |
33ac58d5 | 1752 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1753 | max() _GLIBCXX_USE_NOEXCEPT { return __DBL_MAX__; } |
54c1bf78 | 1754 | |
734f5023 | 1755 | #if __cplusplus >= 201103L |
33ac58d5 | 1756 | static constexpr double |
4d4cf144 | 1757 | lowest() noexcept { return -__DBL_MAX__; } |
018afad3 | 1758 | #endif |
54c1bf78 | 1759 | |
94a86be0 BK |
1760 | static _GLIBCXX_USE_CONSTEXPR int digits = __DBL_MANT_DIG__; |
1761 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __DBL_DIG__; | |
734f5023 | 1762 | #if __cplusplus >= 201103L |
94a86be0 | 1763 | static constexpr int max_digits10 |
018afad3 ESR |
1764 | = __glibcxx_max_digits10 (__DBL_MANT_DIG__); |
1765 | #endif | |
94a86be0 BK |
1766 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1767 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; | |
1768 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; | |
1769 | static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; | |
1770 | ||
33ac58d5 | 1771 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1772 | epsilon() _GLIBCXX_USE_NOEXCEPT { return __DBL_EPSILON__; } |
94a86be0 | 1773 | |
33ac58d5 | 1774 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1775 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5; } |
94a86be0 BK |
1776 | |
1777 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = __DBL_MIN_EXP__; | |
1778 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __DBL_MIN_10_EXP__; | |
1779 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = __DBL_MAX_EXP__; | |
1780 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __DBL_MAX_10_EXP__; | |
1781 | ||
1782 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __DBL_HAS_INFINITY__; | |
1783 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __DBL_HAS_QUIET_NAN__; | |
1784 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; | |
1785 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm | |
264c41ed | 1786 | = bool(__DBL_HAS_DENORM__) ? denorm_present : denorm_absent; |
33ac58d5 | 1787 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss |
94a86be0 BK |
1788 | = __glibcxx_double_has_denorm_loss; |
1789 | ||
33ac58d5 | 1790 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1791 | infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_val(); } |
94a86be0 | 1792 | |
33ac58d5 | 1793 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1794 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nan(""); } |
54c1bf78 | 1795 | |
33ac58d5 | 1796 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1797 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nans(""); } |
94a86be0 | 1798 | |
33ac58d5 | 1799 | static _GLIBCXX_CONSTEXPR double |
4d4cf144 | 1800 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return __DBL_DENORM_MIN__; } |
94a86be0 BK |
1801 | |
1802 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 | |
1803 | = has_infinity && has_quiet_NaN && has_denorm == denorm_present; | |
1804 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1805 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; | |
1806 | ||
1807 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_double_traps; | |
33ac58d5 | 1808 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before |
94a86be0 | 1809 | = __glibcxx_double_tinyness_before; |
33ac58d5 | 1810 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style |
94a86be0 | 1811 | = round_to_nearest; |
54c1bf78 BK |
1812 | }; |
1813 | ||
2778669a PE |
1814 | #undef __glibcxx_double_has_denorm_loss |
1815 | #undef __glibcxx_double_traps | |
1816 | #undef __glibcxx_double_tinyness_before | |
6ad8f949 | 1817 | |
0aa06b18 | 1818 | /// numeric_limits<long double> specialization. |
54c1bf78 BK |
1819 | template<> |
1820 | struct numeric_limits<long double> | |
1821 | { | |
94a86be0 BK |
1822 | static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; |
1823 | ||
33ac58d5 | 1824 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1825 | min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MIN__; } |
94a86be0 | 1826 | |
33ac58d5 | 1827 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1828 | max() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MAX__; } |
54c1bf78 | 1829 | |
734f5023 | 1830 | #if __cplusplus >= 201103L |
33ac58d5 | 1831 | static constexpr long double |
4d4cf144 | 1832 | lowest() noexcept { return -__LDBL_MAX__; } |
018afad3 | 1833 | #endif |
54c1bf78 | 1834 | |
94a86be0 BK |
1835 | static _GLIBCXX_USE_CONSTEXPR int digits = __LDBL_MANT_DIG__; |
1836 | static _GLIBCXX_USE_CONSTEXPR int digits10 = __LDBL_DIG__; | |
734f5023 | 1837 | #if __cplusplus >= 201103L |
94a86be0 | 1838 | static _GLIBCXX_USE_CONSTEXPR int max_digits10 |
018afad3 ESR |
1839 | = __glibcxx_max_digits10 (__LDBL_MANT_DIG__); |
1840 | #endif | |
94a86be0 BK |
1841 | static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; |
1842 | static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; | |
1843 | static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; | |
1844 | static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; | |
1845 | ||
33ac58d5 | 1846 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1847 | epsilon() _GLIBCXX_USE_NOEXCEPT { return __LDBL_EPSILON__; } |
94a86be0 | 1848 | |
33ac58d5 | 1849 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1850 | round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5L; } |
94a86be0 BK |
1851 | |
1852 | static _GLIBCXX_USE_CONSTEXPR int min_exponent = __LDBL_MIN_EXP__; | |
1853 | static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __LDBL_MIN_10_EXP__; | |
1854 | static _GLIBCXX_USE_CONSTEXPR int max_exponent = __LDBL_MAX_EXP__; | |
1855 | static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __LDBL_MAX_10_EXP__; | |
1856 | ||
1857 | static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __LDBL_HAS_INFINITY__; | |
1858 | static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __LDBL_HAS_QUIET_NAN__; | |
1859 | static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; | |
1860 | static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm | |
264c41ed | 1861 | = bool(__LDBL_HAS_DENORM__) ? denorm_present : denorm_absent; |
94a86be0 | 1862 | static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss |
2778669a | 1863 | = __glibcxx_long_double_has_denorm_loss; |
54c1bf78 | 1864 | |
33ac58d5 | 1865 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1866 | infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_vall(); } |
54c1bf78 | 1867 | |
33ac58d5 | 1868 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1869 | quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanl(""); } |
54c1bf78 | 1870 | |
33ac58d5 | 1871 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1872 | signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansl(""); } |
94a86be0 | 1873 | |
33ac58d5 | 1874 | static _GLIBCXX_CONSTEXPR long double |
4d4cf144 | 1875 | denorm_min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_DENORM_MIN__; } |
94a86be0 BK |
1876 | |
1877 | static _GLIBCXX_USE_CONSTEXPR bool is_iec559 | |
1878 | = has_infinity && has_quiet_NaN && has_denorm == denorm_present; | |
1879 | static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; | |
1880 | static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; | |
1881 | ||
1882 | static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_long_double_traps; | |
33ac58d5 | 1883 | static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = |
94a86be0 | 1884 | __glibcxx_long_double_tinyness_before; |
33ac58d5 | 1885 | static _GLIBCXX_USE_CONSTEXPR float_round_style round_style = |
94a86be0 | 1886 | round_to_nearest; |
54c1bf78 BK |
1887 | }; |
1888 | ||
2778669a PE |
1889 | #undef __glibcxx_long_double_has_denorm_loss |
1890 | #undef __glibcxx_long_double_traps | |
1891 | #undef __glibcxx_long_double_tinyness_before | |
be71ea9d | 1892 | |
12ffa228 BK |
1893 | _GLIBCXX_END_NAMESPACE_VERSION |
1894 | } // namespace | |
54c1bf78 | 1895 | |
2778669a PE |
1896 | #undef __glibcxx_signed |
1897 | #undef __glibcxx_min | |
1898 | #undef __glibcxx_max | |
1899 | #undef __glibcxx_digits | |
1900 | #undef __glibcxx_digits10 | |
018afad3 | 1901 | #undef __glibcxx_max_digits10 |
6ad8f949 | 1902 | |
1143680e | 1903 | #endif // _GLIBCXX_NUMERIC_LIMITS |