2 //===---------------------------- limits ----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_LIMITS
12 #define _LIBCPP_LIMITS
24 static constexpr bool is_specialized = false;
25 static constexpr T min() noexcept;
26 static constexpr T max() noexcept;
27 static constexpr T lowest() noexcept;
29 static constexpr int digits = 0;
30 static constexpr int digits10 = 0;
31 static constexpr int max_digits10 = 0;
32 static constexpr bool is_signed = false;
33 static constexpr bool is_integer = false;
34 static constexpr bool is_exact = false;
35 static constexpr int radix = 0;
36 static constexpr T epsilon() noexcept;
37 static constexpr T round_error() noexcept;
39 static constexpr int min_exponent = 0;
40 static constexpr int min_exponent10 = 0;
41 static constexpr int max_exponent = 0;
42 static constexpr int max_exponent10 = 0;
44 static constexpr bool has_infinity = false;
45 static constexpr bool has_quiet_NaN = false;
46 static constexpr bool has_signaling_NaN = false;
47 static constexpr float_denorm_style has_denorm = denorm_absent;
48 static constexpr bool has_denorm_loss = false;
49 static constexpr T infinity() noexcept;
50 static constexpr T quiet_NaN() noexcept;
51 static constexpr T signaling_NaN() noexcept;
52 static constexpr T denorm_min() noexcept;
54 static constexpr bool is_iec559 = false;
55 static constexpr bool is_bounded = false;
56 static constexpr bool is_modulo = false;
58 static constexpr bool traps = false;
59 static constexpr bool tinyness_before = false;
60 static constexpr float_round_style round_style = round_toward_zero;
63 enum float_round_style
65 round_indeterminate = -1,
66 round_toward_zero = 0,
68 round_toward_infinity = 2,
69 round_toward_neg_infinity = 3
72 enum float_denorm_style
74 denorm_indeterminate = -1,
79 template<> class numeric_limits<cv bool>;
81 template<> class numeric_limits<cv char>;
82 template<> class numeric_limits<cv signed char>;
83 template<> class numeric_limits<cv unsigned char>;
84 template<> class numeric_limits<cv wchar_t>;
85 template<> class numeric_limits<cv char16_t>;
86 template<> class numeric_limits<cv char32_t>;
88 template<> class numeric_limits<cv short>;
89 template<> class numeric_limits<cv int>;
90 template<> class numeric_limits<cv long>;
91 template<> class numeric_limits<cv long long>;
92 template<> class numeric_limits<cv unsigned short>;
93 template<> class numeric_limits<cv unsigned int>;
94 template<> class numeric_limits<cv unsigned long>;
95 template<> class numeric_limits<cv unsigned long long>;
97 template<> class numeric_limits<cv float>;
98 template<> class numeric_limits<cv double>;
99 template<> class numeric_limits<cv long double>;
105 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
106 #pragma GCC system_header
110 #include <type_traits>
112 #include <__undef_min_max>
114 #if defined(_LIBCPP_MSVCRT)
115 #include "support/win32/limits_win32.h"
116 #endif // _LIBCPP_MSVCRT
118 #if defined(__IBMCPP__)
119 #include "support/ibm/limits.h"
122 _LIBCPP_BEGIN_NAMESPACE_STD
124 enum float_round_style
126 round_indeterminate = -1,
127 round_toward_zero = 0,
128 round_to_nearest = 1,
129 round_toward_infinity = 2,
130 round_toward_neg_infinity = 3
133 enum float_denorm_style
135 denorm_indeterminate = -1,
140 template <class _Tp, bool = is_arithmetic<_Tp>::value>
141 class __libcpp_numeric_limits
146 static _LIBCPP_CONSTEXPR const bool is_specialized = false;
147 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return type();}
148 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return type();}
149 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return type();}
151 static _LIBCPP_CONSTEXPR const int digits = 0;
152 static _LIBCPP_CONSTEXPR const int digits10 = 0;
153 static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
154 static _LIBCPP_CONSTEXPR const bool is_signed = false;
155 static _LIBCPP_CONSTEXPR const bool is_integer = false;
156 static _LIBCPP_CONSTEXPR const bool is_exact = false;
157 static _LIBCPP_CONSTEXPR const int radix = 0;
158 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type();}
159 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type();}
161 static _LIBCPP_CONSTEXPR const int min_exponent = 0;
162 static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
163 static _LIBCPP_CONSTEXPR const int max_exponent = 0;
164 static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
166 static _LIBCPP_CONSTEXPR const bool has_infinity = false;
167 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
168 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
169 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
170 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
171 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type();}
172 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type();}
173 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type();}
174 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type();}
176 static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
177 static _LIBCPP_CONSTEXPR const bool is_bounded = false;
178 static _LIBCPP_CONSTEXPR const bool is_modulo = false;
180 static _LIBCPP_CONSTEXPR const bool traps = false;
181 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
182 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
185 template <class _Tp, int digits, bool is_signed>
186 struct __libcpp_compute_min
188 static _LIBCPP_CONSTEXPR const _Tp value = _Tp(_Tp(1) << digits);
191 template <class _Tp, int digits>
192 struct __libcpp_compute_min<_Tp, digits, false>
194 static _LIBCPP_CONSTEXPR const _Tp value = _Tp(0);
198 class __libcpp_numeric_limits<_Tp, true>
203 static _LIBCPP_CONSTEXPR const bool is_specialized = true;
205 static _LIBCPP_CONSTEXPR const bool is_signed = type(-1) < type(0);
206 static _LIBCPP_CONSTEXPR const int digits = static_cast<int>(sizeof(type) * __CHAR_BIT__ - is_signed);
207 static _LIBCPP_CONSTEXPR const int digits10 = digits * 3 / 10;
208 static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
209 static _LIBCPP_CONSTEXPR const type __min = __libcpp_compute_min<type, digits, is_signed>::value;
210 static _LIBCPP_CONSTEXPR const type __max = is_signed ? type(type(~0) ^ __min) : type(~0);
211 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __min;}
212 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __max;}
213 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return min();}
215 static _LIBCPP_CONSTEXPR const bool is_integer = true;
216 static _LIBCPP_CONSTEXPR const bool is_exact = true;
217 static _LIBCPP_CONSTEXPR const int radix = 2;
218 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type(0);}
219 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type(0);}
221 static _LIBCPP_CONSTEXPR const int min_exponent = 0;
222 static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
223 static _LIBCPP_CONSTEXPR const int max_exponent = 0;
224 static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
226 static _LIBCPP_CONSTEXPR const bool has_infinity = false;
227 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
228 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
229 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
230 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
231 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type(0);}
232 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type(0);}
233 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type(0);}
234 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type(0);}
236 static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
237 static _LIBCPP_CONSTEXPR const bool is_bounded = true;
238 static _LIBCPP_CONSTEXPR const bool is_modulo = !_VSTD::is_signed<_Tp>::value;
240 #if defined(__i386__) || defined(__x86_64__) || defined(__pnacl__)
241 static _LIBCPP_CONSTEXPR const bool traps = true;
243 static _LIBCPP_CONSTEXPR const bool traps = false;
245 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
246 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
250 class __libcpp_numeric_limits<bool, true>
255 static _LIBCPP_CONSTEXPR const bool is_specialized = true;
257 static _LIBCPP_CONSTEXPR const bool is_signed = false;
258 static _LIBCPP_CONSTEXPR const int digits = 1;
259 static _LIBCPP_CONSTEXPR const int digits10 = 0;
260 static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
261 static _LIBCPP_CONSTEXPR const type __min = false;
262 static _LIBCPP_CONSTEXPR const type __max = true;
263 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __min;}
264 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __max;}
265 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return min();}
267 static _LIBCPP_CONSTEXPR const bool is_integer = true;
268 static _LIBCPP_CONSTEXPR const bool is_exact = true;
269 static _LIBCPP_CONSTEXPR const int radix = 2;
270 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type(0);}
271 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type(0);}
273 static _LIBCPP_CONSTEXPR const int min_exponent = 0;
274 static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
275 static _LIBCPP_CONSTEXPR const int max_exponent = 0;
276 static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
278 static _LIBCPP_CONSTEXPR const bool has_infinity = false;
279 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
280 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
281 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
282 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
283 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type(0);}
284 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type(0);}
285 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type(0);}
286 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type(0);}
288 static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
289 static _LIBCPP_CONSTEXPR const bool is_bounded = true;
290 static _LIBCPP_CONSTEXPR const bool is_modulo = false;
292 static _LIBCPP_CONSTEXPR const bool traps = false;
293 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
294 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
298 class __libcpp_numeric_limits<float, true>
303 static _LIBCPP_CONSTEXPR const bool is_specialized = true;
305 static _LIBCPP_CONSTEXPR const bool is_signed = true;
306 static _LIBCPP_CONSTEXPR const int digits = __FLT_MANT_DIG__;
307 static _LIBCPP_CONSTEXPR const int digits10 = __FLT_DIG__;
308 static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103)/100000;
309 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __FLT_MIN__;}
310 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __FLT_MAX__;}
311 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
313 static _LIBCPP_CONSTEXPR const bool is_integer = false;
314 static _LIBCPP_CONSTEXPR const bool is_exact = false;
315 static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
316 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __FLT_EPSILON__;}
317 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5F;}
319 static _LIBCPP_CONSTEXPR const int min_exponent = __FLT_MIN_EXP__;
320 static _LIBCPP_CONSTEXPR const int min_exponent10 = __FLT_MIN_10_EXP__;
321 static _LIBCPP_CONSTEXPR const int max_exponent = __FLT_MAX_EXP__;
322 static _LIBCPP_CONSTEXPR const int max_exponent10 = __FLT_MAX_10_EXP__;
324 static _LIBCPP_CONSTEXPR const bool has_infinity = true;
325 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
326 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
327 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
328 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
329 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_valf();}
330 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nanf("");}
331 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nansf("");}
332 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __FLT_DENORM_MIN__;}
334 static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
335 static _LIBCPP_CONSTEXPR const bool is_bounded = true;
336 static _LIBCPP_CONSTEXPR const bool is_modulo = false;
338 static _LIBCPP_CONSTEXPR const bool traps = false;
339 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
340 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
344 class __libcpp_numeric_limits<double, true>
349 static _LIBCPP_CONSTEXPR const bool is_specialized = true;
351 static _LIBCPP_CONSTEXPR const bool is_signed = true;
352 static _LIBCPP_CONSTEXPR const int digits = __DBL_MANT_DIG__;
353 static _LIBCPP_CONSTEXPR const int digits10 = __DBL_DIG__;
354 static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103)/100000;
355 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __DBL_MIN__;}
356 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __DBL_MAX__;}
357 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
359 static _LIBCPP_CONSTEXPR const bool is_integer = false;
360 static _LIBCPP_CONSTEXPR const bool is_exact = false;
361 static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
362 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __DBL_EPSILON__;}
363 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5;}
365 static _LIBCPP_CONSTEXPR const int min_exponent = __DBL_MIN_EXP__;
366 static _LIBCPP_CONSTEXPR const int min_exponent10 = __DBL_MIN_10_EXP__;
367 static _LIBCPP_CONSTEXPR const int max_exponent = __DBL_MAX_EXP__;
368 static _LIBCPP_CONSTEXPR const int max_exponent10 = __DBL_MAX_10_EXP__;
370 static _LIBCPP_CONSTEXPR const bool has_infinity = true;
371 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
372 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
373 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
374 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
375 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_val();}
376 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nan("");}
377 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nans("");}
378 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __DBL_DENORM_MIN__;}
380 static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
381 static _LIBCPP_CONSTEXPR const bool is_bounded = true;
382 static _LIBCPP_CONSTEXPR const bool is_modulo = false;
384 static _LIBCPP_CONSTEXPR const bool traps = false;
385 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
386 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
390 class __libcpp_numeric_limits<long double, true>
393 typedef long double type;
395 static _LIBCPP_CONSTEXPR const bool is_specialized = true;
397 static _LIBCPP_CONSTEXPR const bool is_signed = true;
398 static _LIBCPP_CONSTEXPR const int digits = __LDBL_MANT_DIG__;
399 static _LIBCPP_CONSTEXPR const int digits10 = __LDBL_DIG__;
400 static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103)/100000;
401 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __LDBL_MIN__;}
402 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __LDBL_MAX__;}
403 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
405 static _LIBCPP_CONSTEXPR const bool is_integer = false;
406 static _LIBCPP_CONSTEXPR const bool is_exact = false;
407 static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
408 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __LDBL_EPSILON__;}
409 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5;}
411 static _LIBCPP_CONSTEXPR const int min_exponent = __LDBL_MIN_EXP__;
412 static _LIBCPP_CONSTEXPR const int min_exponent10 = __LDBL_MIN_10_EXP__;
413 static _LIBCPP_CONSTEXPR const int max_exponent = __LDBL_MAX_EXP__;
414 static _LIBCPP_CONSTEXPR const int max_exponent10 = __LDBL_MAX_10_EXP__;
416 static _LIBCPP_CONSTEXPR const bool has_infinity = true;
417 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
418 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
419 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
420 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
421 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_vall();}
422 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nanl("");}
423 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nansl("");}
424 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __LDBL_DENORM_MIN__;}
426 #if (defined(__ppc__) || defined(__ppc64__))
427 static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
429 static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
431 static _LIBCPP_CONSTEXPR const bool is_bounded = true;
432 static _LIBCPP_CONSTEXPR const bool is_modulo = false;
434 static _LIBCPP_CONSTEXPR const bool traps = false;
435 static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
436 static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
440 class _LIBCPP_TYPE_VIS_ONLY numeric_limits
441 : private __libcpp_numeric_limits<typename remove_cv<_Tp>::type>
443 typedef __libcpp_numeric_limits<typename remove_cv<_Tp>::type> __base;
444 typedef typename __base::type type;
446 static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
447 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
448 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
449 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
451 static _LIBCPP_CONSTEXPR const int digits = __base::digits;
452 static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
453 static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
454 static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
455 static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
456 static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
457 static _LIBCPP_CONSTEXPR const int radix = __base::radix;
458 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
459 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
461 static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
462 static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
463 static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
464 static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
466 static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
467 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
468 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
469 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
470 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
471 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
472 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
473 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
474 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
476 static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
477 static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
478 static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
480 static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
481 static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
482 static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
486 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_specialized;
488 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::digits;
490 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::digits10;
492 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_digits10;
494 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_signed;
496 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_integer;
498 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_exact;
500 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::radix;
502 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::min_exponent;
504 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::min_exponent10;
506 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_exponent;
508 _LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_exponent10;
510 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_infinity;
512 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_quiet_NaN;
514 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_signaling_NaN;
516 _LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<_Tp>::has_denorm;
518 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_denorm_loss;
520 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_iec559;
522 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_bounded;
524 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_modulo;
526 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::traps;
528 _LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::tinyness_before;
530 _LIBCPP_CONSTEXPR const float_round_style numeric_limits<_Tp>::round_style;
533 class _LIBCPP_TYPE_VIS_ONLY numeric_limits<const _Tp>
534 : private numeric_limits<_Tp>
536 typedef numeric_limits<_Tp> __base;
539 static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
540 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
541 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
542 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
544 static _LIBCPP_CONSTEXPR const int digits = __base::digits;
545 static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
546 static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
547 static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
548 static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
549 static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
550 static _LIBCPP_CONSTEXPR const int radix = __base::radix;
551 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
552 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
554 static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
555 static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
556 static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
557 static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
559 static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
560 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
561 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
562 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
563 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
564 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
565 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
566 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
567 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
569 static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
570 static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
571 static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
573 static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
574 static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
575 static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
579 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_specialized;
581 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::digits;
583 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::digits10;
585 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_digits10;
587 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_signed;
589 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_integer;
591 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_exact;
593 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::radix;
595 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::min_exponent;
597 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::min_exponent10;
599 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_exponent;
601 _LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_exponent10;
603 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_infinity;
605 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_quiet_NaN;
607 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_signaling_NaN;
609 _LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<const _Tp>::has_denorm;
611 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_denorm_loss;
613 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_iec559;
615 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_bounded;
617 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_modulo;
619 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::traps;
621 _LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::tinyness_before;
623 _LIBCPP_CONSTEXPR const float_round_style numeric_limits<const _Tp>::round_style;
626 class _LIBCPP_TYPE_VIS_ONLY numeric_limits<volatile _Tp>
627 : private numeric_limits<_Tp>
629 typedef numeric_limits<_Tp> __base;
632 static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
633 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
634 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
635 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
637 static _LIBCPP_CONSTEXPR const int digits = __base::digits;
638 static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
639 static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
640 static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
641 static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
642 static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
643 static _LIBCPP_CONSTEXPR const int radix = __base::radix;
644 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
645 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
647 static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
648 static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
649 static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
650 static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
652 static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
653 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
654 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
655 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
656 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
657 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
658 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
659 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
660 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
662 static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
663 static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
664 static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
666 static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
667 static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
668 static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
672 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_specialized;
674 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::digits;
676 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::digits10;
678 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_digits10;
680 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_signed;
682 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_integer;
684 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_exact;
686 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::radix;
688 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::min_exponent;
690 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::min_exponent10;
692 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_exponent;
694 _LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_exponent10;
696 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_infinity;
698 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_quiet_NaN;
700 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_signaling_NaN;
702 _LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<volatile _Tp>::has_denorm;
704 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_denorm_loss;
706 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_iec559;
708 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_bounded;
710 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_modulo;
712 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::traps;
714 _LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::tinyness_before;
716 _LIBCPP_CONSTEXPR const float_round_style numeric_limits<volatile _Tp>::round_style;
719 class _LIBCPP_TYPE_VIS_ONLY numeric_limits<const volatile _Tp>
720 : private numeric_limits<_Tp>
722 typedef numeric_limits<_Tp> __base;
725 static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
726 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
727 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
728 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
730 static _LIBCPP_CONSTEXPR const int digits = __base::digits;
731 static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
732 static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
733 static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
734 static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
735 static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
736 static _LIBCPP_CONSTEXPR const int radix = __base::radix;
737 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
738 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
740 static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
741 static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
742 static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
743 static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
745 static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
746 static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
747 static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
748 static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
749 static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
750 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
751 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
752 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
753 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
755 static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
756 static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
757 static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
759 static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
760 static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
761 static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
765 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_specialized;
767 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::digits;
769 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::digits10;
771 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_digits10;
773 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_signed;
775 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_integer;
777 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_exact;
779 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::radix;
781 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::min_exponent;
783 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::min_exponent10;
785 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_exponent;
787 _LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_exponent10;
789 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_infinity;
791 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_quiet_NaN;
793 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_signaling_NaN;
795 _LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<const volatile _Tp>::has_denorm;
797 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_denorm_loss;
799 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_iec559;
801 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_bounded;
803 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_modulo;
805 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::traps;
807 _LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::tinyness_before;
809 _LIBCPP_CONSTEXPR const float_round_style numeric_limits<const volatile _Tp>::round_style;
811 _LIBCPP_END_NAMESPACE_STD
813 #endif // _LIBCPP_LIMITS