1 // The template and inlines for the numeric_limits classes. -*- C++ -*-
3 // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 // 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
26 /** @file include/limits
27 * This is a Standard C++ Library header.
30 // Note: this is not a conforming implementation.
31 // Written by Gabriel Dos Reis <gdr@codesourcery.com>
38 #ifndef _GLIBCXX_NUMERIC_LIMITS
39 #define _GLIBCXX_NUMERIC_LIMITS 1
41 #pragma GCC system_header
43 #include <bits/c++config.h>
46 // The numeric_limits<> traits document implementation-defined aspects
47 // of fundamental arithmetic data types (integers and floating points).
48 // From Standard C++ point of view, there are 14 such types:
51 // char, signed char, unsigned char, wchar_t (4)
52 // short, unsigned short (2)
54 // long, unsigned long (2)
61 // GNU C++ understands (where supported by the host C-library)
63 // long long, unsigned long long (2)
65 // which brings us to 16 fundamental arithmetic data types in GNU C++.
68 // Since a numeric_limits<> is a bit tricky to get right, we rely on
69 // an interface composed of macros which should be defined in config/os
70 // or config/cpu when they differ from the generic (read arbitrary)
71 // definitions given here.
74 // These values can be overridden in the target configuration file.
75 // The default values are appropriate for many 32-bit targets.
77 // GCC only intrinsically supports modulo integral types. The only remaining
78 // integral exceptional values is division by zero. Only targets that do not
79 // signal division by zero in some "hard to ignore" way should use false.
80 #ifndef __glibcxx_integral_traps
81 # define __glibcxx_integral_traps true
87 // Default values. Should be overridden in configuration files if necessary.
89 #ifndef __glibcxx_float_has_denorm_loss
90 # define __glibcxx_float_has_denorm_loss false
92 #ifndef __glibcxx_float_traps
93 # define __glibcxx_float_traps false
95 #ifndef __glibcxx_float_tinyness_before
96 # define __glibcxx_float_tinyness_before false
101 // Default values. Should be overridden in configuration files if necessary.
103 #ifndef __glibcxx_double_has_denorm_loss
104 # define __glibcxx_double_has_denorm_loss false
106 #ifndef __glibcxx_double_traps
107 # define __glibcxx_double_traps false
109 #ifndef __glibcxx_double_tinyness_before
110 # define __glibcxx_double_tinyness_before false
115 // Default values. Should be overridden in configuration files if necessary.
117 #ifndef __glibcxx_long_double_has_denorm_loss
118 # define __glibcxx_long_double_has_denorm_loss false
120 #ifndef __glibcxx_long_double_traps
121 # define __glibcxx_long_double_traps false
123 #ifndef __glibcxx_long_double_tinyness_before
124 # define __glibcxx_long_double_tinyness_before false
127 // You should not need to define any macros below this point.
129 #define __glibcxx_signed(T) ((T)(-1) < 0)
131 #define __glibcxx_min(T) \
132 (__glibcxx_signed (T) ? (T)1 << __glibcxx_digits (T) : (T)0)
134 #define __glibcxx_max(T) \
135 (__glibcxx_signed (T) ? \
136 (((((T)1 << (__glibcxx_digits (T) - 1)) - 1) << 1) + 1) : ~(T)0)
138 #define __glibcxx_digits(T) \
139 (sizeof(T) * __CHAR_BIT__ - __glibcxx_signed (T))
141 // The fraction 643/2136 approximates log10(2) to 7 significant digits.
142 #define __glibcxx_digits10(T) \
143 (__glibcxx_digits (T) * 643L / 2136)
145 #define __glibcxx_max_digits10(T) \
146 (2 + (T) * 643L / 2136)
148 namespace std _GLIBCXX_VISIBILITY(default)
150 _GLIBCXX_BEGIN_NAMESPACE_VERSION
153 * @brief Describes the rounding style for floating-point types.
155 * This is used in the std::numeric_limits class.
157 enum float_round_style
159 round_indeterminate = -1, /// Intermediate.
160 round_toward_zero = 0, /// To zero.
161 round_to_nearest = 1, /// To the nearest representable value.
162 round_toward_infinity = 2, /// To infinity.
163 round_toward_neg_infinity = 3 /// To negative infinity.
167 * @brief Describes the denormalization for floating-point types.
169 * These values represent the presence or absence of a variable number
170 * of exponent bits. This type is used in the std::numeric_limits class.
172 enum float_denorm_style
174 /// Indeterminate at compile time whether denormalized values are allowed.
175 denorm_indeterminate = -1,
176 /// The type does not allow denormalized values.
178 /// The type allows denormalized values.
183 * @brief Part of std::numeric_limits.
185 * The @c static @c const members are usable as integral constant
188 * @note This is a separate class for purposes of efficiency; you
189 * should only access these members as part of an instantiation
190 * of the std::numeric_limits class.
192 struct __numeric_limits_base
194 /** This will be true for all fundamental types (which have
195 specializations), and false for everything else. */
196 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = false;
198 /** The number of @c radix digits that be represented without change: for
199 integer types, the number of non-sign bits in the mantissa; for
200 floating types, the number of @c radix digits in the mantissa. */
201 static _GLIBCXX_USE_CONSTEXPR int digits = 0;
203 /** The number of base 10 digits that can be represented without change. */
204 static _GLIBCXX_USE_CONSTEXPR int digits10 = 0;
206 #ifdef __GXX_EXPERIMENTAL_CXX0X__
207 /** The number of base 10 digits required to ensure that values which
208 differ are always differentiated. */
209 static constexpr int max_digits10 = 0;
212 /** True if the type is signed. */
213 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
215 /** True if the type is integer.
216 * Is this supposed to be <em>if the type is integral?</em> */
217 static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
219 /** True if the type uses an exact representation. <em>All integer types are
220 exact, but not all exact types are integer. For example, rational and
221 fixed-exponent representations are exact but not integer.</em>
223 static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
225 /** For integer types, specifies the base of the representation. For
226 floating types, specifies the base of the exponent representation. */
227 static _GLIBCXX_USE_CONSTEXPR int radix = 0;
229 /** The minimum negative integer such that @c radix raised to the power of
230 (one less than that integer) is a normalized floating point number. */
231 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
233 /** The minimum negative integer such that 10 raised to that power is in
234 the range of normalized floating point numbers. */
235 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
237 /** The maximum positive integer such that @c radix raised to the power of
238 (one less than that integer) is a representable finite floating point
240 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
242 /** The maximum positive integer such that 10 raised to that power is in
243 the range of representable finite floating point numbers. */
244 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
246 /** True if the type has a representation for positive infinity. */
247 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
249 /** True if the type has a representation for a quiet (non-signaling)
250 <em>Not a Number</em>. */
251 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
253 /** True if the type has a representation for a signaling
254 <em>Not a Number</em>. */
255 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
257 /** See std::float_denorm_style for more information. */
258 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm = denorm_absent;
260 /** <em>True if loss of accuracy is detected as a denormalization loss,
261 rather than as an inexact result.</em> [18.2.1.2]/42 */
262 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
264 /** True if-and-only-if the type adheres to the IEC 559 standard, also
265 known as IEEE 754. (Only makes sense for floating point types.) */
266 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
268 /** <em>True if the set of values representable by the type is
269 finite. All built-in types are bounded, this member would be
270 false for arbitrary precision types.</em> [18.2.1.2]/54 */
271 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false;
273 /** True if the type is @e modulo, that is, if it is possible to add two
274 positive numbers and have a result that wraps around to a third number
275 that is less. Typically false for floating types, true for unsigned
276 integers, and true for signed integers. */
277 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
279 /** True if trapping is implemented for this type. */
280 static _GLIBCXX_USE_CONSTEXPR bool traps = false;
282 /** True if tininess is detected before rounding. (see IEC 559) */
283 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
285 /** See std::float_round_style for more information. This is only
286 meaningful for floating types; integer types will all be
287 round_toward_zero. */
288 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style =
293 * @brief Properties of fundamental types.
295 * This class allows a program to obtain information about the
296 * representation of a fundamental type on a given platform. For
297 * non-fundamental types, the functions will return 0 and the data
298 * members will all be @c false.
300 * _GLIBCXX_RESOLVE_LIB_DEFECTS: DRs 201 and 184 (hi Gaby!) are
301 * noted, but not incorporated in this documented (yet).
303 template<typename _Tp>
304 struct numeric_limits : public __numeric_limits_base
306 /** The minimum finite value, or for floating types with
307 denormalization, the minimum positive normalized value. */
308 static _GLIBCXX_CONSTEXPR _Tp
309 min() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
311 /** The maximum finite value. */
312 static _GLIBCXX_CONSTEXPR _Tp
313 max() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
315 #ifdef __GXX_EXPERIMENTAL_CXX0X__
316 /** A finite value x such that there is no other finite value y
319 lowest() noexcept { return static_cast<_Tp>(0); }
322 /** The @e machine @e epsilon: the difference between 1 and the least
323 value greater than 1 that is representable. */
324 static _GLIBCXX_CONSTEXPR _Tp
325 epsilon() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
327 /** The maximum rounding error measurement (see LIA-1). */
328 static _GLIBCXX_CONSTEXPR _Tp
329 round_error() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
331 /** The representation of positive infinity, if @c has_infinity. */
332 static _GLIBCXX_CONSTEXPR _Tp
333 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
335 /** The representation of a quiet <em>Not a Number</em>,
336 if @c has_quiet_NaN. */
337 static _GLIBCXX_CONSTEXPR _Tp
338 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
340 /** The representation of a signaling <em>Not a Number</em>, if
341 @c has_signaling_NaN. */
342 static _GLIBCXX_CONSTEXPR _Tp
343 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
345 /** The minimum positive denormalized value. For types where
346 @c has_denorm is false, this is the minimum positive normalized
348 static _GLIBCXX_CONSTEXPR _Tp
349 denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
352 #ifdef __GXX_EXPERIMENTAL_CXX0X__
353 template<typename _Tp>
354 struct numeric_limits<const _Tp>
355 : public numeric_limits<_Tp> { };
357 template<typename _Tp>
358 struct numeric_limits<volatile _Tp>
359 : public numeric_limits<_Tp> { };
361 template<typename _Tp>
362 struct numeric_limits<const volatile _Tp>
363 : public numeric_limits<_Tp> { };
366 // Now there follow 16 explicit specializations. Yes, 16. Make sure
367 // you get the count right. (18 in c++0x mode)
369 /// numeric_limits<bool> specialization.
371 struct numeric_limits<bool>
373 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
375 static _GLIBCXX_CONSTEXPR bool
376 min() _GLIBCXX_USE_NOEXCEPT { return false; }
378 static _GLIBCXX_CONSTEXPR bool
379 max() _GLIBCXX_USE_NOEXCEPT { return true; }
381 #ifdef __GXX_EXPERIMENTAL_CXX0X__
382 static constexpr bool
383 lowest() noexcept { return min(); }
385 static _GLIBCXX_USE_CONSTEXPR int digits = 1;
386 static _GLIBCXX_USE_CONSTEXPR int digits10 = 0;
387 #ifdef __GXX_EXPERIMENTAL_CXX0X__
388 static constexpr int max_digits10 = 0;
390 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
391 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
392 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
393 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
395 static _GLIBCXX_CONSTEXPR bool
396 epsilon() _GLIBCXX_USE_NOEXCEPT { return false; }
398 static _GLIBCXX_CONSTEXPR bool
399 round_error() _GLIBCXX_USE_NOEXCEPT { return false; }
401 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
402 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
403 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
404 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
406 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
407 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
408 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
409 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
411 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
413 static _GLIBCXX_CONSTEXPR bool
414 infinity() _GLIBCXX_USE_NOEXCEPT { return false; }
416 static _GLIBCXX_CONSTEXPR bool
417 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return false; }
419 static _GLIBCXX_CONSTEXPR bool
420 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return false; }
422 static _GLIBCXX_CONSTEXPR bool
423 denorm_min() _GLIBCXX_USE_NOEXCEPT { return false; }
425 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
426 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
427 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
429 // It is not clear what it means for a boolean type to trap.
430 // This is a DR on the LWG issue list. Here, I use integer
431 // promotion semantics.
432 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
433 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
434 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
438 /// numeric_limits<char> specialization.
440 struct numeric_limits<char>
442 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
444 static _GLIBCXX_CONSTEXPR char
445 min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min(char); }
447 static _GLIBCXX_CONSTEXPR char
448 max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max(char); }
450 #ifdef __GXX_EXPERIMENTAL_CXX0X__
451 static constexpr char
452 lowest() noexcept { return min(); }
455 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char);
456 static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char);
457 #ifdef __GXX_EXPERIMENTAL_CXX0X__
458 static constexpr int max_digits10 = 0;
460 static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char);
461 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
462 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
463 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
465 static _GLIBCXX_CONSTEXPR char
466 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
468 static _GLIBCXX_CONSTEXPR char
469 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
471 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
472 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
473 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
474 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
476 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
477 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
478 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
479 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
481 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
483 static _GLIBCXX_CONSTEXPR
484 char infinity() _GLIBCXX_USE_NOEXCEPT { return char(); }
486 static _GLIBCXX_CONSTEXPR char
487 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); }
489 static _GLIBCXX_CONSTEXPR char
490 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); }
492 static _GLIBCXX_CONSTEXPR char
493 denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<char>(0); }
495 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
496 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
497 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
499 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
500 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
501 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
505 /// numeric_limits<signed char> specialization.
507 struct numeric_limits<signed char>
509 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
511 static _GLIBCXX_CONSTEXPR signed char
512 min() _GLIBCXX_USE_NOEXCEPT { return -__SCHAR_MAX__ - 1; }
514 static _GLIBCXX_CONSTEXPR signed char
515 max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__; }
517 #ifdef __GXX_EXPERIMENTAL_CXX0X__
518 static constexpr signed char
519 lowest() noexcept { return min(); }
522 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (signed char);
523 static _GLIBCXX_USE_CONSTEXPR int digits10
524 = __glibcxx_digits10 (signed char);
525 #ifdef __GXX_EXPERIMENTAL_CXX0X__
526 static constexpr int max_digits10 = 0;
528 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
529 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
530 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
531 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
533 static _GLIBCXX_CONSTEXPR signed char
534 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
536 static _GLIBCXX_CONSTEXPR signed char
537 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
539 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
540 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
541 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
542 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
544 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
545 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
546 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
547 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
549 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
551 static _GLIBCXX_CONSTEXPR signed char
552 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); }
554 static _GLIBCXX_CONSTEXPR signed char
555 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); }
557 static _GLIBCXX_CONSTEXPR signed char
558 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
559 { return static_cast<signed char>(0); }
561 static _GLIBCXX_CONSTEXPR signed char
562 denorm_min() _GLIBCXX_USE_NOEXCEPT
563 { return static_cast<signed char>(0); }
565 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
566 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
567 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
569 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
570 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
571 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
575 /// numeric_limits<unsigned char> specialization.
577 struct numeric_limits<unsigned char>
579 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
581 static _GLIBCXX_CONSTEXPR unsigned char
582 min() _GLIBCXX_USE_NOEXCEPT { return 0; }
584 static _GLIBCXX_CONSTEXPR unsigned char
585 max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__ * 2U + 1; }
587 #ifdef __GXX_EXPERIMENTAL_CXX0X__
588 static constexpr unsigned char
589 lowest() noexcept { return min(); }
592 static _GLIBCXX_USE_CONSTEXPR int digits
593 = __glibcxx_digits (unsigned char);
594 static _GLIBCXX_USE_CONSTEXPR int digits10
595 = __glibcxx_digits10 (unsigned char);
596 #ifdef __GXX_EXPERIMENTAL_CXX0X__
597 static constexpr int max_digits10 = 0;
599 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
600 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
601 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
602 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
604 static _GLIBCXX_CONSTEXPR unsigned char
605 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
607 static _GLIBCXX_CONSTEXPR unsigned char
608 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
610 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
611 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
612 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
613 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
615 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
616 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
617 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
618 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
620 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
622 static _GLIBCXX_CONSTEXPR unsigned char
623 infinity() _GLIBCXX_USE_NOEXCEPT
624 { return static_cast<unsigned char>(0); }
626 static _GLIBCXX_CONSTEXPR unsigned char
627 quiet_NaN() _GLIBCXX_USE_NOEXCEPT
628 { return static_cast<unsigned char>(0); }
630 static _GLIBCXX_CONSTEXPR unsigned char
631 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
632 { return static_cast<unsigned char>(0); }
634 static _GLIBCXX_CONSTEXPR unsigned char
635 denorm_min() _GLIBCXX_USE_NOEXCEPT
636 { return static_cast<unsigned char>(0); }
638 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
639 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
640 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
642 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
643 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
644 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
648 /// numeric_limits<wchar_t> specialization.
650 struct numeric_limits<wchar_t>
652 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
654 static _GLIBCXX_CONSTEXPR wchar_t
655 min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (wchar_t); }
657 static _GLIBCXX_CONSTEXPR wchar_t
658 max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (wchar_t); }
660 #ifdef __GXX_EXPERIMENTAL_CXX0X__
661 static constexpr wchar_t
662 lowest() noexcept { return min(); }
665 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (wchar_t);
666 static _GLIBCXX_USE_CONSTEXPR int digits10
667 = __glibcxx_digits10 (wchar_t);
668 #ifdef __GXX_EXPERIMENTAL_CXX0X__
669 static constexpr int max_digits10 = 0;
671 static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (wchar_t);
672 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
673 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
674 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
676 static _GLIBCXX_CONSTEXPR wchar_t
677 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
679 static _GLIBCXX_CONSTEXPR wchar_t
680 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
682 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
683 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
684 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
685 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
687 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
688 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
689 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
690 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
692 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
694 static _GLIBCXX_CONSTEXPR wchar_t
695 infinity() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
697 static _GLIBCXX_CONSTEXPR wchar_t
698 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
700 static _GLIBCXX_CONSTEXPR wchar_t
701 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
703 static _GLIBCXX_CONSTEXPR wchar_t
704 denorm_min() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
706 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
707 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
708 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
710 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
711 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
712 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
716 #ifdef __GXX_EXPERIMENTAL_CXX0X__
717 /// numeric_limits<char16_t> specialization.
719 struct numeric_limits<char16_t>
721 static constexpr bool is_specialized = true;
723 static constexpr char16_t
724 min() noexcept { return __glibcxx_min (char16_t); }
726 static constexpr char16_t
727 max() noexcept { return __glibcxx_max (char16_t); }
729 static constexpr char16_t
730 lowest() noexcept { return min(); }
732 static constexpr int digits = __glibcxx_digits (char16_t);
733 static constexpr int digits10 = __glibcxx_digits10 (char16_t);
734 static constexpr int max_digits10 = 0;
735 static constexpr bool is_signed = __glibcxx_signed (char16_t);
736 static constexpr bool is_integer = true;
737 static constexpr bool is_exact = true;
738 static constexpr int radix = 2;
740 static constexpr char16_t
741 epsilon() noexcept { return 0; }
743 static constexpr char16_t
744 round_error() noexcept { return 0; }
746 static constexpr int min_exponent = 0;
747 static constexpr int min_exponent10 = 0;
748 static constexpr int max_exponent = 0;
749 static constexpr int max_exponent10 = 0;
751 static constexpr bool has_infinity = false;
752 static constexpr bool has_quiet_NaN = false;
753 static constexpr bool has_signaling_NaN = false;
754 static constexpr float_denorm_style has_denorm = denorm_absent;
755 static constexpr bool has_denorm_loss = false;
757 static constexpr char16_t
758 infinity() noexcept { return char16_t(); }
760 static constexpr char16_t
761 quiet_NaN() noexcept { return char16_t(); }
763 static constexpr char16_t
764 signaling_NaN() noexcept { return char16_t(); }
766 static constexpr char16_t
767 denorm_min() noexcept { return char16_t(); }
769 static constexpr bool is_iec559 = false;
770 static constexpr bool is_bounded = true;
771 static constexpr bool is_modulo = true;
773 static constexpr bool traps = __glibcxx_integral_traps;
774 static constexpr bool tinyness_before = false;
775 static constexpr float_round_style round_style = round_toward_zero;
778 /// numeric_limits<char32_t> specialization.
780 struct numeric_limits<char32_t>
782 static constexpr bool is_specialized = true;
784 static constexpr char32_t
785 min() noexcept { return __glibcxx_min (char32_t); }
787 static constexpr char32_t
788 max() noexcept { return __glibcxx_max (char32_t); }
790 static constexpr char32_t
791 lowest() noexcept { return min(); }
793 static constexpr int digits = __glibcxx_digits (char32_t);
794 static constexpr int digits10 = __glibcxx_digits10 (char32_t);
795 static constexpr int max_digits10 = 0;
796 static constexpr bool is_signed = __glibcxx_signed (char32_t);
797 static constexpr bool is_integer = true;
798 static constexpr bool is_exact = true;
799 static constexpr int radix = 2;
801 static constexpr char32_t
802 epsilon() noexcept { return 0; }
804 static constexpr char32_t
805 round_error() noexcept { return 0; }
807 static constexpr int min_exponent = 0;
808 static constexpr int min_exponent10 = 0;
809 static constexpr int max_exponent = 0;
810 static constexpr int max_exponent10 = 0;
812 static constexpr bool has_infinity = false;
813 static constexpr bool has_quiet_NaN = false;
814 static constexpr bool has_signaling_NaN = false;
815 static constexpr float_denorm_style has_denorm = denorm_absent;
816 static constexpr bool has_denorm_loss = false;
818 static constexpr char32_t
819 infinity() noexcept { return char32_t(); }
821 static constexpr char32_t
822 quiet_NaN() noexcept { return char32_t(); }
824 static constexpr char32_t
825 signaling_NaN() noexcept { return char32_t(); }
827 static constexpr char32_t
828 denorm_min() noexcept { return char32_t(); }
830 static constexpr bool is_iec559 = false;
831 static constexpr bool is_bounded = true;
832 static constexpr bool is_modulo = true;
834 static constexpr bool traps = __glibcxx_integral_traps;
835 static constexpr bool tinyness_before = false;
836 static constexpr float_round_style round_style = round_toward_zero;
840 /// numeric_limits<short> specialization.
842 struct numeric_limits<short>
844 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
846 static _GLIBCXX_CONSTEXPR short
847 min() _GLIBCXX_USE_NOEXCEPT { return -__SHRT_MAX__ - 1; }
849 static _GLIBCXX_CONSTEXPR short
850 max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__; }
852 #ifdef __GXX_EXPERIMENTAL_CXX0X__
853 static constexpr short
854 lowest() noexcept { return min(); }
857 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (short);
858 static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (short);
859 #ifdef __GXX_EXPERIMENTAL_CXX0X__
860 static constexpr int max_digits10 = 0;
862 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
863 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
864 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
865 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
867 static _GLIBCXX_CONSTEXPR short
868 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
870 static _GLIBCXX_CONSTEXPR short
871 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
873 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
874 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
875 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
876 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
878 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
879 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
880 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
881 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
883 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
885 static _GLIBCXX_CONSTEXPR short
886 infinity() _GLIBCXX_USE_NOEXCEPT { return short(); }
888 static _GLIBCXX_CONSTEXPR short
889 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); }
891 static _GLIBCXX_CONSTEXPR short
892 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); }
894 static _GLIBCXX_CONSTEXPR short
895 denorm_min() _GLIBCXX_USE_NOEXCEPT { return short(); }
897 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
898 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
899 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
901 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
902 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
903 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
907 /// numeric_limits<unsigned short> specialization.
909 struct numeric_limits<unsigned short>
911 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
913 static _GLIBCXX_CONSTEXPR unsigned short
914 min() _GLIBCXX_USE_NOEXCEPT { return 0; }
916 static _GLIBCXX_CONSTEXPR unsigned short
917 max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__ * 2U + 1; }
919 #ifdef __GXX_EXPERIMENTAL_CXX0X__
920 static constexpr unsigned short
921 lowest() noexcept { return min(); }
924 static _GLIBCXX_USE_CONSTEXPR int digits
925 = __glibcxx_digits (unsigned short);
926 static _GLIBCXX_USE_CONSTEXPR int digits10
927 = __glibcxx_digits10 (unsigned short);
928 #ifdef __GXX_EXPERIMENTAL_CXX0X__
929 static constexpr int max_digits10 = 0;
931 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
932 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
933 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
934 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
936 static _GLIBCXX_CONSTEXPR unsigned short
937 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
939 static _GLIBCXX_CONSTEXPR unsigned short
940 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
942 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
943 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
944 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
945 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
947 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
948 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
949 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
950 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
952 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
954 static _GLIBCXX_CONSTEXPR unsigned short
955 infinity() _GLIBCXX_USE_NOEXCEPT
956 { return static_cast<unsigned short>(0); }
958 static _GLIBCXX_CONSTEXPR unsigned short
959 quiet_NaN() _GLIBCXX_USE_NOEXCEPT
960 { return static_cast<unsigned short>(0); }
962 static _GLIBCXX_CONSTEXPR unsigned short
963 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
964 { return static_cast<unsigned short>(0); }
966 static _GLIBCXX_CONSTEXPR unsigned short
967 denorm_min() _GLIBCXX_USE_NOEXCEPT
968 { return static_cast<unsigned short>(0); }
970 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
971 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
972 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
974 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
975 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
976 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
980 /// numeric_limits<int> specialization.
982 struct numeric_limits<int>
984 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
986 static _GLIBCXX_CONSTEXPR int
987 min() _GLIBCXX_USE_NOEXCEPT { return -__INT_MAX__ - 1; }
989 static _GLIBCXX_CONSTEXPR int
990 max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__; }
992 #ifdef __GXX_EXPERIMENTAL_CXX0X__
994 lowest() noexcept { return min(); }
997 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (int);
998 static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (int);
999 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1000 static constexpr int max_digits10 = 0;
1002 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1003 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1004 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1005 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1007 static _GLIBCXX_CONSTEXPR int
1008 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1010 static _GLIBCXX_CONSTEXPR int
1011 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1013 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1014 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1015 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1016 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1018 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1019 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1020 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1021 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1023 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1025 static _GLIBCXX_CONSTEXPR int
1026 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
1028 static _GLIBCXX_CONSTEXPR int
1029 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
1031 static _GLIBCXX_CONSTEXPR int
1032 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
1034 static _GLIBCXX_CONSTEXPR int
1035 denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
1037 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1038 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1039 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1041 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1042 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1043 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1044 = round_toward_zero;
1047 /// numeric_limits<unsigned int> specialization.
1049 struct numeric_limits<unsigned int>
1051 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1053 static _GLIBCXX_CONSTEXPR unsigned int
1054 min() _GLIBCXX_USE_NOEXCEPT { return 0; }
1056 static _GLIBCXX_CONSTEXPR unsigned int
1057 max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__ * 2U + 1; }
1059 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1060 static constexpr unsigned int
1061 lowest() noexcept { return min(); }
1064 static _GLIBCXX_USE_CONSTEXPR int digits
1065 = __glibcxx_digits (unsigned int);
1066 static _GLIBCXX_USE_CONSTEXPR int digits10
1067 = __glibcxx_digits10 (unsigned int);
1068 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1069 static constexpr int max_digits10 = 0;
1071 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
1072 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1073 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1074 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1076 static _GLIBCXX_CONSTEXPR unsigned int
1077 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1079 static _GLIBCXX_CONSTEXPR unsigned int
1080 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1082 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1083 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1084 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1085 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1087 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1088 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1089 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1090 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1092 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1094 static _GLIBCXX_CONSTEXPR unsigned int
1095 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<unsigned int>(0); }
1097 static _GLIBCXX_CONSTEXPR unsigned int
1098 quiet_NaN() _GLIBCXX_USE_NOEXCEPT
1099 { return static_cast<unsigned int>(0); }
1101 static _GLIBCXX_CONSTEXPR unsigned int
1102 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
1103 { return static_cast<unsigned int>(0); }
1105 static _GLIBCXX_CONSTEXPR unsigned int
1106 denorm_min() _GLIBCXX_USE_NOEXCEPT
1107 { return static_cast<unsigned int>(0); }
1109 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1110 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1111 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1113 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1114 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1115 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1116 = round_toward_zero;
1119 /// numeric_limits<long> specialization.
1121 struct numeric_limits<long>
1123 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1125 static _GLIBCXX_CONSTEXPR long
1126 min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_MAX__ - 1; }
1128 static _GLIBCXX_CONSTEXPR long
1129 max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__; }
1131 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1132 static constexpr long
1133 lowest() noexcept { return min(); }
1136 static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (long);
1137 static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (long);
1138 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1139 static constexpr int max_digits10 = 0;
1141 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1142 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1143 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1144 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1146 static _GLIBCXX_CONSTEXPR long
1147 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1149 static _GLIBCXX_CONSTEXPR long
1150 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1152 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1153 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1154 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1155 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1157 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1158 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1159 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1160 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1162 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1164 static _GLIBCXX_CONSTEXPR long
1165 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
1167 static _GLIBCXX_CONSTEXPR long
1168 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
1170 static _GLIBCXX_CONSTEXPR long
1171 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
1173 static _GLIBCXX_CONSTEXPR long
1174 denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
1176 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1177 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1178 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1180 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1181 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1182 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1183 = round_toward_zero;
1186 /// numeric_limits<unsigned long> specialization.
1188 struct numeric_limits<unsigned long>
1190 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1192 static _GLIBCXX_CONSTEXPR unsigned long
1193 min() _GLIBCXX_USE_NOEXCEPT { return 0; }
1195 static _GLIBCXX_CONSTEXPR unsigned long
1196 max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__ * 2UL + 1; }
1198 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1199 static constexpr unsigned long
1200 lowest() noexcept { return min(); }
1203 static _GLIBCXX_USE_CONSTEXPR int digits
1204 = __glibcxx_digits (unsigned long);
1205 static _GLIBCXX_USE_CONSTEXPR int digits10
1206 = __glibcxx_digits10 (unsigned long);
1207 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1208 static constexpr int max_digits10 = 0;
1210 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
1211 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1212 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1213 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1215 static _GLIBCXX_CONSTEXPR unsigned long
1216 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1218 static _GLIBCXX_CONSTEXPR unsigned long
1219 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1221 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1222 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1223 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1224 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1226 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1227 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1228 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1229 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1231 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1233 static _GLIBCXX_CONSTEXPR unsigned long
1234 infinity() _GLIBCXX_USE_NOEXCEPT
1235 { return static_cast<unsigned long>(0); }
1237 static _GLIBCXX_CONSTEXPR unsigned long
1238 quiet_NaN() _GLIBCXX_USE_NOEXCEPT
1239 { return static_cast<unsigned long>(0); }
1241 static _GLIBCXX_CONSTEXPR unsigned long
1242 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
1243 { return static_cast<unsigned long>(0); }
1245 static _GLIBCXX_CONSTEXPR unsigned long
1246 denorm_min() _GLIBCXX_USE_NOEXCEPT
1247 { return static_cast<unsigned long>(0); }
1249 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1250 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1251 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1253 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1254 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1255 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1256 = round_toward_zero;
1259 /// numeric_limits<long long> specialization.
1261 struct numeric_limits<long long>
1263 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1265 static _GLIBCXX_CONSTEXPR long long
1266 min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_LONG_MAX__ - 1; }
1268 static _GLIBCXX_CONSTEXPR long long
1269 max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__; }
1271 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1272 static constexpr long long
1273 lowest() noexcept { return min(); }
1276 static _GLIBCXX_USE_CONSTEXPR int digits
1277 = __glibcxx_digits (long long);
1278 static _GLIBCXX_USE_CONSTEXPR int digits10
1279 = __glibcxx_digits10 (long long);
1280 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1281 static constexpr int max_digits10 = 0;
1283 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1284 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1285 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1286 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1288 static _GLIBCXX_CONSTEXPR long long
1289 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1291 static _GLIBCXX_CONSTEXPR long long
1292 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1294 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1295 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1296 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1297 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1299 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1300 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1301 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1302 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1304 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1306 static _GLIBCXX_CONSTEXPR long long
1307 infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
1309 static _GLIBCXX_CONSTEXPR long long
1310 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
1312 static _GLIBCXX_CONSTEXPR long long
1313 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
1314 { return static_cast<long long>(0); }
1316 static _GLIBCXX_CONSTEXPR long long
1317 denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
1319 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1320 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1321 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1323 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1324 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1325 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1326 = round_toward_zero;
1329 /// numeric_limits<unsigned long long> specialization.
1331 struct numeric_limits<unsigned long long>
1333 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1335 static _GLIBCXX_CONSTEXPR unsigned long long
1336 min() _GLIBCXX_USE_NOEXCEPT { return 0; }
1338 static _GLIBCXX_CONSTEXPR unsigned long long
1339 max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__ * 2ULL + 1; }
1341 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1342 static constexpr unsigned long long
1343 lowest() noexcept { return min(); }
1346 static _GLIBCXX_USE_CONSTEXPR int digits
1347 = __glibcxx_digits (unsigned long long);
1348 static _GLIBCXX_USE_CONSTEXPR int digits10
1349 = __glibcxx_digits10 (unsigned long long);
1350 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1351 static constexpr int max_digits10 = 0;
1353 static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
1354 static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
1355 static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
1356 static _GLIBCXX_USE_CONSTEXPR int radix = 2;
1358 static _GLIBCXX_CONSTEXPR unsigned long long
1359 epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
1361 static _GLIBCXX_CONSTEXPR unsigned long long
1362 round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
1364 static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
1365 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
1366 static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
1367 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
1369 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
1370 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
1371 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
1372 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1374 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
1376 static _GLIBCXX_CONSTEXPR unsigned long long
1377 infinity() _GLIBCXX_USE_NOEXCEPT
1378 { return static_cast<unsigned long long>(0); }
1380 static _GLIBCXX_CONSTEXPR unsigned long long
1381 quiet_NaN() _GLIBCXX_USE_NOEXCEPT
1382 { return static_cast<unsigned long long>(0); }
1384 static _GLIBCXX_CONSTEXPR unsigned long long
1385 signaling_NaN() _GLIBCXX_USE_NOEXCEPT
1386 { return static_cast<unsigned long long>(0); }
1388 static _GLIBCXX_CONSTEXPR unsigned long long
1389 denorm_min() _GLIBCXX_USE_NOEXCEPT
1390 { return static_cast<unsigned long long>(0); }
1392 static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
1393 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1394 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
1396 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
1397 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
1398 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1399 = round_toward_zero;
1402 /// numeric_limits<float> specialization.
1404 struct numeric_limits<float>
1406 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1408 static _GLIBCXX_CONSTEXPR float
1409 min() _GLIBCXX_USE_NOEXCEPT { return __FLT_MIN__; }
1411 static _GLIBCXX_CONSTEXPR float
1412 max() _GLIBCXX_USE_NOEXCEPT { return __FLT_MAX__; }
1414 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1415 static constexpr float
1416 lowest() noexcept { return -__FLT_MAX__; }
1419 static _GLIBCXX_USE_CONSTEXPR int digits = __FLT_MANT_DIG__;
1420 static _GLIBCXX_USE_CONSTEXPR int digits10 = __FLT_DIG__;
1421 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1422 static constexpr int max_digits10
1423 = __glibcxx_max_digits10 (__FLT_MANT_DIG__);
1425 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1426 static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
1427 static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
1428 static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
1430 static _GLIBCXX_CONSTEXPR float
1431 epsilon() _GLIBCXX_USE_NOEXCEPT { return __FLT_EPSILON__; }
1433 static _GLIBCXX_CONSTEXPR float
1434 round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5F; }
1436 static _GLIBCXX_USE_CONSTEXPR int min_exponent = __FLT_MIN_EXP__;
1437 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __FLT_MIN_10_EXP__;
1438 static _GLIBCXX_USE_CONSTEXPR int max_exponent = __FLT_MAX_EXP__;
1439 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __FLT_MAX_10_EXP__;
1441 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __FLT_HAS_INFINITY__;
1442 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __FLT_HAS_QUIET_NAN__;
1443 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
1444 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1445 = bool(__FLT_HAS_DENORM__) ? denorm_present : denorm_absent;
1446 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
1447 = __glibcxx_float_has_denorm_loss;
1449 static _GLIBCXX_CONSTEXPR float
1450 infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_valf(); }
1452 static _GLIBCXX_CONSTEXPR float
1453 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanf(""); }
1455 static _GLIBCXX_CONSTEXPR float
1456 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansf(""); }
1458 static _GLIBCXX_CONSTEXPR float
1459 denorm_min() _GLIBCXX_USE_NOEXCEPT { return __FLT_DENORM_MIN__; }
1461 static _GLIBCXX_USE_CONSTEXPR bool is_iec559
1462 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
1463 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1464 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
1466 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_float_traps;
1467 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before
1468 = __glibcxx_float_tinyness_before;
1469 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1473 #undef __glibcxx_float_has_denorm_loss
1474 #undef __glibcxx_float_traps
1475 #undef __glibcxx_float_tinyness_before
1477 /// numeric_limits<double> specialization.
1479 struct numeric_limits<double>
1481 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1483 static _GLIBCXX_CONSTEXPR double
1484 min() _GLIBCXX_USE_NOEXCEPT { return __DBL_MIN__; }
1486 static _GLIBCXX_CONSTEXPR double
1487 max() _GLIBCXX_USE_NOEXCEPT { return __DBL_MAX__; }
1489 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1490 static constexpr double
1491 lowest() noexcept { return -__DBL_MAX__; }
1494 static _GLIBCXX_USE_CONSTEXPR int digits = __DBL_MANT_DIG__;
1495 static _GLIBCXX_USE_CONSTEXPR int digits10 = __DBL_DIG__;
1496 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1497 static constexpr int max_digits10
1498 = __glibcxx_max_digits10 (__DBL_MANT_DIG__);
1500 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1501 static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
1502 static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
1503 static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
1505 static _GLIBCXX_CONSTEXPR double
1506 epsilon() _GLIBCXX_USE_NOEXCEPT { return __DBL_EPSILON__; }
1508 static _GLIBCXX_CONSTEXPR double
1509 round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5; }
1511 static _GLIBCXX_USE_CONSTEXPR int min_exponent = __DBL_MIN_EXP__;
1512 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __DBL_MIN_10_EXP__;
1513 static _GLIBCXX_USE_CONSTEXPR int max_exponent = __DBL_MAX_EXP__;
1514 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __DBL_MAX_10_EXP__;
1516 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __DBL_HAS_INFINITY__;
1517 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __DBL_HAS_QUIET_NAN__;
1518 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
1519 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1520 = bool(__DBL_HAS_DENORM__) ? denorm_present : denorm_absent;
1521 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
1522 = __glibcxx_double_has_denorm_loss;
1524 static _GLIBCXX_CONSTEXPR double
1525 infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_val(); }
1527 static _GLIBCXX_CONSTEXPR double
1528 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nan(""); }
1530 static _GLIBCXX_CONSTEXPR double
1531 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nans(""); }
1533 static _GLIBCXX_CONSTEXPR double
1534 denorm_min() _GLIBCXX_USE_NOEXCEPT { return __DBL_DENORM_MIN__; }
1536 static _GLIBCXX_USE_CONSTEXPR bool is_iec559
1537 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
1538 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1539 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
1541 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_double_traps;
1542 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before
1543 = __glibcxx_double_tinyness_before;
1544 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
1548 #undef __glibcxx_double_has_denorm_loss
1549 #undef __glibcxx_double_traps
1550 #undef __glibcxx_double_tinyness_before
1552 /// numeric_limits<long double> specialization.
1554 struct numeric_limits<long double>
1556 static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
1558 static _GLIBCXX_CONSTEXPR long double
1559 min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MIN__; }
1561 static _GLIBCXX_CONSTEXPR long double
1562 max() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MAX__; }
1564 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1565 static constexpr long double
1566 lowest() noexcept { return -__LDBL_MAX__; }
1569 static _GLIBCXX_USE_CONSTEXPR int digits = __LDBL_MANT_DIG__;
1570 static _GLIBCXX_USE_CONSTEXPR int digits10 = __LDBL_DIG__;
1571 #ifdef __GXX_EXPERIMENTAL_CXX0X__
1572 static _GLIBCXX_USE_CONSTEXPR int max_digits10
1573 = __glibcxx_max_digits10 (__LDBL_MANT_DIG__);
1575 static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
1576 static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
1577 static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
1578 static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
1580 static _GLIBCXX_CONSTEXPR long double
1581 epsilon() _GLIBCXX_USE_NOEXCEPT { return __LDBL_EPSILON__; }
1583 static _GLIBCXX_CONSTEXPR long double
1584 round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5L; }
1586 static _GLIBCXX_USE_CONSTEXPR int min_exponent = __LDBL_MIN_EXP__;
1587 static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __LDBL_MIN_10_EXP__;
1588 static _GLIBCXX_USE_CONSTEXPR int max_exponent = __LDBL_MAX_EXP__;
1589 static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __LDBL_MAX_10_EXP__;
1591 static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __LDBL_HAS_INFINITY__;
1592 static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __LDBL_HAS_QUIET_NAN__;
1593 static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
1594 static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
1595 = bool(__LDBL_HAS_DENORM__) ? denorm_present : denorm_absent;
1596 static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
1597 = __glibcxx_long_double_has_denorm_loss;
1599 static _GLIBCXX_CONSTEXPR long double
1600 infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_vall(); }
1602 static _GLIBCXX_CONSTEXPR long double
1603 quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanl(""); }
1605 static _GLIBCXX_CONSTEXPR long double
1606 signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansl(""); }
1608 static _GLIBCXX_CONSTEXPR long double
1609 denorm_min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_DENORM_MIN__; }
1611 static _GLIBCXX_USE_CONSTEXPR bool is_iec559
1612 = has_infinity && has_quiet_NaN && has_denorm == denorm_present;
1613 static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
1614 static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
1616 static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_long_double_traps;
1617 static _GLIBCXX_USE_CONSTEXPR bool tinyness_before =
1618 __glibcxx_long_double_tinyness_before;
1619 static _GLIBCXX_USE_CONSTEXPR float_round_style round_style =
1623 #undef __glibcxx_long_double_has_denorm_loss
1624 #undef __glibcxx_long_double_traps
1625 #undef __glibcxx_long_double_tinyness_before
1627 _GLIBCXX_END_NAMESPACE_VERSION
1630 #undef __glibcxx_signed
1631 #undef __glibcxx_min
1632 #undef __glibcxx_max
1633 #undef __glibcxx_digits
1634 #undef __glibcxx_digits10
1635 #undef __glibcxx_max_digits10
1637 #endif // _GLIBCXX_NUMERIC_LIMITS