Index: gcc/libstdc++-v3/include/std/limits |
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-// The template and inlines for the numeric_limits classes. -*- C++ -*- |
- |
-// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
-// 2008, 2009 Free Software Foundation, Inc. |
-// |
-// This file is part of the GNU ISO C++ Library. This library is free |
-// software; you can redistribute it and/or modify it under the |
-// terms of the GNU General Public License as published by the |
-// Free Software Foundation; either version 3, or (at your option) |
-// any later version. |
- |
-// This library is distributed in the hope that it will be useful, |
-// but WITHOUT ANY WARRANTY; without even the implied warranty of |
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
-// GNU General Public License for more details. |
- |
-// Under Section 7 of GPL version 3, you are granted additional |
-// permissions described in the GCC Runtime Library Exception, version |
-// 3.1, as published by the Free Software Foundation. |
- |
-// You should have received a copy of the GNU General Public License and |
-// a copy of the GCC Runtime Library Exception along with this program; |
-// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
-// <http://www.gnu.org/licenses/>. |
- |
-/** @file limits |
- * This is a Standard C++ Library header. |
- */ |
- |
-// Note: this is not a conforming implementation. |
-// Written by Gabriel Dos Reis <gdr@codesourcery.com> |
- |
-// |
-// ISO 14882:1998 |
-// 18.2.1 |
-// |
- |
-#ifndef _GLIBCXX_NUMERIC_LIMITS |
-#define _GLIBCXX_NUMERIC_LIMITS 1 |
- |
-#pragma GCC system_header |
- |
-#include <bits/c++config.h> |
- |
-// |
-// The numeric_limits<> traits document implementation-defined aspects |
-// of fundamental arithmetic data types (integers and floating points). |
-// From Standard C++ point of view, there are 13 such types: |
-// * integers |
-// bool (1) |
-// char, signed char, unsigned char (3) |
-// short, unsigned short (2) |
-// int, unsigned (2) |
-// long, unsigned long (2) |
-// |
-// * floating points |
-// float (1) |
-// double (1) |
-// long double (1) |
-// |
-// GNU C++ understands (where supported by the host C-library) |
-// * integer |
-// long long, unsigned long long (2) |
-// |
-// which brings us to 15 fundamental arithmetic data types in GNU C++. |
-// |
-// |
-// Since a numeric_limits<> is a bit tricky to get right, we rely on |
-// an interface composed of macros which should be defined in config/os |
-// or config/cpu when they differ from the generic (read arbitrary) |
-// definitions given here. |
-// |
- |
-// These values can be overridden in the target configuration file. |
-// The default values are appropriate for many 32-bit targets. |
- |
-// GCC only intrinsically supports modulo integral types. The only remaining |
-// integral exceptional values is division by zero. Only targets that do not |
-// signal division by zero in some "hard to ignore" way should use false. |
-#ifndef __glibcxx_integral_traps |
-# define __glibcxx_integral_traps true |
-#endif |
- |
-// float |
-// |
- |
-// Default values. Should be overridden in configuration files if necessary. |
- |
-#ifndef __glibcxx_float_has_denorm_loss |
-# define __glibcxx_float_has_denorm_loss false |
-#endif |
-#ifndef __glibcxx_float_traps |
-# define __glibcxx_float_traps false |
-#endif |
-#ifndef __glibcxx_float_tinyness_before |
-# define __glibcxx_float_tinyness_before false |
-#endif |
- |
-// double |
- |
-// Default values. Should be overridden in configuration files if necessary. |
- |
-#ifndef __glibcxx_double_has_denorm_loss |
-# define __glibcxx_double_has_denorm_loss false |
-#endif |
-#ifndef __glibcxx_double_traps |
-# define __glibcxx_double_traps false |
-#endif |
-#ifndef __glibcxx_double_tinyness_before |
-# define __glibcxx_double_tinyness_before false |
-#endif |
- |
-// long double |
- |
-// Default values. Should be overridden in configuration files if necessary. |
- |
-#ifndef __glibcxx_long_double_has_denorm_loss |
-# define __glibcxx_long_double_has_denorm_loss false |
-#endif |
-#ifndef __glibcxx_long_double_traps |
-# define __glibcxx_long_double_traps false |
-#endif |
-#ifndef __glibcxx_long_double_tinyness_before |
-# define __glibcxx_long_double_tinyness_before false |
-#endif |
- |
-// You should not need to define any macros below this point. |
- |
-#define __glibcxx_signed(T) ((T)(-1) < 0) |
- |
-#define __glibcxx_min(T) \ |
- (__glibcxx_signed (T) ? (T)1 << __glibcxx_digits (T) : (T)0) |
- |
-#define __glibcxx_max(T) \ |
- (__glibcxx_signed (T) ? \ |
- (((((T)1 << (__glibcxx_digits (T) - 1)) - 1) << 1) + 1) : ~(T)0) |
- |
-#define __glibcxx_digits(T) \ |
- (sizeof(T) * __CHAR_BIT__ - __glibcxx_signed (T)) |
- |
-// The fraction 643/2136 approximates log10(2) to 7 significant digits. |
-#define __glibcxx_digits10(T) \ |
- (__glibcxx_digits (T) * 643 / 2136) |
- |
- |
-_GLIBCXX_BEGIN_NAMESPACE(std) |
- |
- /** |
- * @brief Describes the rounding style for floating-point types. |
- * |
- * This is used in the std::numeric_limits class. |
- */ |
- enum float_round_style |
- { |
- round_indeterminate = -1, ///< Self-explanatory. |
- round_toward_zero = 0, ///< Self-explanatory. |
- round_to_nearest = 1, ///< To the nearest representable value. |
- round_toward_infinity = 2, ///< Self-explanatory. |
- round_toward_neg_infinity = 3 ///< Self-explanatory. |
- }; |
- |
- /** |
- * @brief Describes the denormalization for floating-point types. |
- * |
- * These values represent the presence or absence of a variable number |
- * of exponent bits. This type is used in the std::numeric_limits class. |
- */ |
- enum float_denorm_style |
- { |
- /// Indeterminate at compile time whether denormalized values are allowed. |
- denorm_indeterminate = -1, |
- /// The type does not allow denormalized values. |
- denorm_absent = 0, |
- /// The type allows denormalized values. |
- denorm_present = 1 |
- }; |
- |
- /** |
- * @brief Part of std::numeric_limits. |
- * |
- * The @c static @c const members are usable as integral constant |
- * expressions. |
- * |
- * @note This is a separate class for purposes of efficiency; you |
- * should only access these members as part of an instantiation |
- * of the std::numeric_limits class. |
- */ |
- struct __numeric_limits_base |
- { |
- /** This will be true for all fundamental types (which have |
- specializations), and false for everything else. */ |
- static const bool is_specialized = false; |
- |
- /** The number of @c radix digits that be represented without change: for |
- integer types, the number of non-sign bits in the mantissa; for |
- floating types, the number of @c radix digits in the mantissa. */ |
- static const int digits = 0; |
- /** The number of base 10 digits that can be represented without change. */ |
- static const int digits10 = 0; |
- /** True if the type is signed. */ |
- static const bool is_signed = false; |
- /** True if the type is integer. |
- * Is this supposed to be "if the type is integral"? |
- */ |
- static const bool is_integer = false; |
- /** True if the type uses an exact representation. "All integer types are |
- exact, but not all exact types are integer. For example, rational and |
- fixed-exponent representations are exact but not integer." |
- [18.2.1.2]/15 */ |
- static const bool is_exact = false; |
- /** For integer types, specifies the base of the representation. For |
- floating types, specifies the base of the exponent representation. */ |
- static const int radix = 0; |
- |
- /** The minimum negative integer such that @c radix raised to the power of |
- (one less than that integer) is a normalized floating point number. */ |
- static const int min_exponent = 0; |
- /** The minimum negative integer such that 10 raised to that power is in |
- the range of normalized floating point numbers. */ |
- static const int min_exponent10 = 0; |
- /** The maximum positive integer such that @c radix raised to the power of |
- (one less than that integer) is a representable finite floating point |
- number. */ |
- static const int max_exponent = 0; |
- /** The maximum positive integer such that 10 raised to that power is in |
- the range of representable finite floating point numbers. */ |
- static const int max_exponent10 = 0; |
- |
- /** True if the type has a representation for positive infinity. */ |
- static const bool has_infinity = false; |
- /** True if the type has a representation for a quiet (non-signaling) |
- "Not a Number." */ |
- static const bool has_quiet_NaN = false; |
- /** True if the type has a representation for a signaling |
- "Not a Number." */ |
- static const bool has_signaling_NaN = false; |
- /** See std::float_denorm_style for more information. */ |
- static const float_denorm_style has_denorm = denorm_absent; |
- /** "True if loss of accuracy is detected as a denormalization loss, |
- rather than as an inexact result." [18.2.1.2]/42 */ |
- static const bool has_denorm_loss = false; |
- |
- /** True if-and-only-if the type adheres to the IEC 559 standard, also |
- known as IEEE 754. (Only makes sense for floating point types.) */ |
- static const bool is_iec559 = false; |
- /** "True if the set of values representable by the type is finite. All |
- built-in types are bounded, this member would be false for arbitrary |
- precision types." [18.2.1.2]/54 */ |
- static const bool is_bounded = false; |
- /** True if the type is @e modulo, that is, if it is possible to add two |
- positive numbers and have a result that wraps around to a third number |
- that is less. Typically false for floating types, true for unsigned |
- integers, and true for signed integers. */ |
- static const bool is_modulo = false; |
- |
- /** True if trapping is implemented for this type. */ |
- static const bool traps = false; |
- /** True if tininess is detected before rounding. (see IEC 559) */ |
- static const bool tinyness_before = false; |
- /** See std::float_round_style for more information. This is only |
- meaningful for floating types; integer types will all be |
- round_toward_zero. */ |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /** |
- * @brief Properties of fundamental types. |
- * |
- * This class allows a program to obtain information about the |
- * representation of a fundamental type on a given platform. For |
- * non-fundamental types, the functions will return 0 and the data |
- * members will all be @c false. |
- * |
- * _GLIBCXX_RESOLVE_LIB_DEFECTS: DRs 201 and 184 (hi Gaby!) are |
- * noted, but not incorporated in this documented (yet). |
- */ |
- template<typename _Tp> |
- struct numeric_limits : public __numeric_limits_base |
- { |
- /** The minimum finite value, or for floating types with |
- denormalization, the minimum positive normalized value. */ |
- static _Tp min() throw() { return static_cast<_Tp>(0); } |
- /** The maximum finite value. */ |
- static _Tp max() throw() { return static_cast<_Tp>(0); } |
- /** The @e machine @e epsilon: the difference between 1 and the least |
- value greater than 1 that is representable. */ |
- static _Tp epsilon() throw() { return static_cast<_Tp>(0); } |
- /** The maximum rounding error measurement (see LIA-1). */ |
- static _Tp round_error() throw() { return static_cast<_Tp>(0); } |
- /** The representation of positive infinity, if @c has_infinity. */ |
- static _Tp infinity() throw() { return static_cast<_Tp>(0); } |
- /** The representation of a quiet "Not a Number," if @c has_quiet_NaN. */ |
- static _Tp quiet_NaN() throw() { return static_cast<_Tp>(0); } |
- /** The representation of a signaling "Not a Number," if |
- @c has_signaling_NaN. */ |
- static _Tp signaling_NaN() throw() { return static_cast<_Tp>(0); } |
- /** The minimum positive denormalized value. For types where |
- @c has_denorm is false, this is the minimum positive normalized |
- value. */ |
- static _Tp denorm_min() throw() { return static_cast<_Tp>(0); } |
- }; |
- |
- // Now there follow 15 explicit specializations. Yes, 15. Make sure |
- // you get the count right. |
- |
- /// numeric_limits<bool> specialization. |
- template<> |
- struct numeric_limits<bool> |
- { |
- static const bool is_specialized = true; |
- |
- static bool min() throw() |
- { return false; } |
- static bool max() throw() |
- { return true; } |
- |
- static const int digits = 1; |
- static const int digits10 = 0; |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static bool epsilon() throw() |
- { return false; } |
- static bool round_error() throw() |
- { return false; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static bool infinity() throw() |
- { return false; } |
- static bool quiet_NaN() throw() |
- { return false; } |
- static bool signaling_NaN() throw() |
- { return false; } |
- static bool denorm_min() throw() |
- { return false; } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = false; |
- |
- // It is not clear what it means for a boolean type to trap. |
- // This is a DR on the LWG issue list. Here, I use integer |
- // promotion semantics. |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<char> specialization. |
- template<> |
- struct numeric_limits<char> |
- { |
- static const bool is_specialized = true; |
- |
- static char min() throw() |
- { return __glibcxx_min(char); } |
- static char max() throw() |
- { return __glibcxx_max(char); } |
- |
- static const int digits = __glibcxx_digits (char); |
- static const int digits10 = __glibcxx_digits10 (char); |
- static const bool is_signed = __glibcxx_signed (char); |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static char epsilon() throw() |
- { return 0; } |
- static char round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static char infinity() throw() |
- { return char(); } |
- static char quiet_NaN() throw() |
- { return char(); } |
- static char signaling_NaN() throw() |
- { return char(); } |
- static char denorm_min() throw() |
- { return static_cast<char>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<signed char> specialization. |
- template<> |
- struct numeric_limits<signed char> |
- { |
- static const bool is_specialized = true; |
- |
- static signed char min() throw() |
- { return -__SCHAR_MAX__ - 1; } |
- static signed char max() throw() |
- { return __SCHAR_MAX__; } |
- |
- static const int digits = __glibcxx_digits (signed char); |
- static const int digits10 = __glibcxx_digits10 (signed char); |
- static const bool is_signed = true; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static signed char epsilon() throw() |
- { return 0; } |
- static signed char round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static signed char infinity() throw() |
- { return static_cast<signed char>(0); } |
- static signed char quiet_NaN() throw() |
- { return static_cast<signed char>(0); } |
- static signed char signaling_NaN() throw() |
- { return static_cast<signed char>(0); } |
- static signed char denorm_min() throw() |
- { return static_cast<signed char>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<unsigned char> specialization. |
- template<> |
- struct numeric_limits<unsigned char> |
- { |
- static const bool is_specialized = true; |
- |
- static unsigned char min() throw() |
- { return 0; } |
- static unsigned char max() throw() |
- { return __SCHAR_MAX__ * 2U + 1; } |
- |
- static const int digits = __glibcxx_digits (unsigned char); |
- static const int digits10 = __glibcxx_digits10 (unsigned char); |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static unsigned char epsilon() throw() |
- { return 0; } |
- static unsigned char round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static unsigned char infinity() throw() |
- { return static_cast<unsigned char>(0); } |
- static unsigned char quiet_NaN() throw() |
- { return static_cast<unsigned char>(0); } |
- static unsigned char signaling_NaN() throw() |
- { return static_cast<unsigned char>(0); } |
- static unsigned char denorm_min() throw() |
- { return static_cast<unsigned char>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<wchar_t> specialization. |
- template<> |
- struct numeric_limits<wchar_t> |
- { |
- static const bool is_specialized = true; |
- |
- static wchar_t min() throw() |
- { return __glibcxx_min (wchar_t); } |
- static wchar_t max() throw() |
- { return __glibcxx_max (wchar_t); } |
- |
- static const int digits = __glibcxx_digits (wchar_t); |
- static const int digits10 = __glibcxx_digits10 (wchar_t); |
- static const bool is_signed = __glibcxx_signed (wchar_t); |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static wchar_t epsilon() throw() |
- { return 0; } |
- static wchar_t round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static wchar_t infinity() throw() |
- { return wchar_t(); } |
- static wchar_t quiet_NaN() throw() |
- { return wchar_t(); } |
- static wchar_t signaling_NaN() throw() |
- { return wchar_t(); } |
- static wchar_t denorm_min() throw() |
- { return wchar_t(); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
-#ifdef __GXX_EXPERIMENTAL_CXX0X__ |
- /// numeric_limits<char16_t> specialization. |
- template<> |
- struct numeric_limits<char16_t> |
- { |
- static const bool is_specialized = true; |
- |
- static char16_t min() throw() |
- { return __glibcxx_min (char16_t); } |
- static char16_t max() throw() |
- { return __glibcxx_max (char16_t); } |
- |
- static const int digits = __glibcxx_digits (char16_t); |
- static const int digits10 = __glibcxx_digits10 (char16_t); |
- static const bool is_signed = __glibcxx_signed (char16_t); |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static char16_t epsilon() throw() |
- { return 0; } |
- static char16_t round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static char16_t infinity() throw() |
- { return char16_t(); } |
- static char16_t quiet_NaN() throw() |
- { return char16_t(); } |
- static char16_t signaling_NaN() throw() |
- { return char16_t(); } |
- static char16_t denorm_min() throw() |
- { return char16_t(); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<char32_t> specialization. |
- template<> |
- struct numeric_limits<char32_t> |
- { |
- static const bool is_specialized = true; |
- |
- static char32_t min() throw() |
- { return __glibcxx_min (char32_t); } |
- static char32_t max() throw() |
- { return __glibcxx_max (char32_t); } |
- |
- static const int digits = __glibcxx_digits (char32_t); |
- static const int digits10 = __glibcxx_digits10 (char32_t); |
- static const bool is_signed = __glibcxx_signed (char32_t); |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static char32_t epsilon() throw() |
- { return 0; } |
- static char32_t round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static char32_t infinity() throw() |
- { return char32_t(); } |
- static char32_t quiet_NaN() throw() |
- { return char32_t(); } |
- static char32_t signaling_NaN() throw() |
- { return char32_t(); } |
- static char32_t denorm_min() throw() |
- { return char32_t(); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
-#endif |
- |
- /// numeric_limits<short> specialization. |
- template<> |
- struct numeric_limits<short> |
- { |
- static const bool is_specialized = true; |
- |
- static short min() throw() |
- { return -__SHRT_MAX__ - 1; } |
- static short max() throw() |
- { return __SHRT_MAX__; } |
- |
- static const int digits = __glibcxx_digits (short); |
- static const int digits10 = __glibcxx_digits10 (short); |
- static const bool is_signed = true; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static short epsilon() throw() |
- { return 0; } |
- static short round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static short infinity() throw() |
- { return short(); } |
- static short quiet_NaN() throw() |
- { return short(); } |
- static short signaling_NaN() throw() |
- { return short(); } |
- static short denorm_min() throw() |
- { return short(); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<unsigned short> specialization. |
- template<> |
- struct numeric_limits<unsigned short> |
- { |
- static const bool is_specialized = true; |
- |
- static unsigned short min() throw() |
- { return 0; } |
- static unsigned short max() throw() |
- { return __SHRT_MAX__ * 2U + 1; } |
- |
- static const int digits = __glibcxx_digits (unsigned short); |
- static const int digits10 = __glibcxx_digits10 (unsigned short); |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static unsigned short epsilon() throw() |
- { return 0; } |
- static unsigned short round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static unsigned short infinity() throw() |
- { return static_cast<unsigned short>(0); } |
- static unsigned short quiet_NaN() throw() |
- { return static_cast<unsigned short>(0); } |
- static unsigned short signaling_NaN() throw() |
- { return static_cast<unsigned short>(0); } |
- static unsigned short denorm_min() throw() |
- { return static_cast<unsigned short>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<int> specialization. |
- template<> |
- struct numeric_limits<int> |
- { |
- static const bool is_specialized = true; |
- |
- static int min() throw() |
- { return -__INT_MAX__ - 1; } |
- static int max() throw() |
- { return __INT_MAX__; } |
- |
- static const int digits = __glibcxx_digits (int); |
- static const int digits10 = __glibcxx_digits10 (int); |
- static const bool is_signed = true; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static int epsilon() throw() |
- { return 0; } |
- static int round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static int infinity() throw() |
- { return static_cast<int>(0); } |
- static int quiet_NaN() throw() |
- { return static_cast<int>(0); } |
- static int signaling_NaN() throw() |
- { return static_cast<int>(0); } |
- static int denorm_min() throw() |
- { return static_cast<int>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<unsigned int> specialization. |
- template<> |
- struct numeric_limits<unsigned int> |
- { |
- static const bool is_specialized = true; |
- |
- static unsigned int min() throw() |
- { return 0; } |
- static unsigned int max() throw() |
- { return __INT_MAX__ * 2U + 1; } |
- |
- static const int digits = __glibcxx_digits (unsigned int); |
- static const int digits10 = __glibcxx_digits10 (unsigned int); |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static unsigned int epsilon() throw() |
- { return 0; } |
- static unsigned int round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static unsigned int infinity() throw() |
- { return static_cast<unsigned int>(0); } |
- static unsigned int quiet_NaN() throw() |
- { return static_cast<unsigned int>(0); } |
- static unsigned int signaling_NaN() throw() |
- { return static_cast<unsigned int>(0); } |
- static unsigned int denorm_min() throw() |
- { return static_cast<unsigned int>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<long> specialization. |
- template<> |
- struct numeric_limits<long> |
- { |
- static const bool is_specialized = true; |
- |
- static long min() throw() |
- { return -__LONG_MAX__ - 1; } |
- static long max() throw() |
- { return __LONG_MAX__; } |
- |
- static const int digits = __glibcxx_digits (long); |
- static const int digits10 = __glibcxx_digits10 (long); |
- static const bool is_signed = true; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static long epsilon() throw() |
- { return 0; } |
- static long round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static long infinity() throw() |
- { return static_cast<long>(0); } |
- static long quiet_NaN() throw() |
- { return static_cast<long>(0); } |
- static long signaling_NaN() throw() |
- { return static_cast<long>(0); } |
- static long denorm_min() throw() |
- { return static_cast<long>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<unsigned long> specialization. |
- template<> |
- struct numeric_limits<unsigned long> |
- { |
- static const bool is_specialized = true; |
- |
- static unsigned long min() throw() |
- { return 0; } |
- static unsigned long max() throw() |
- { return __LONG_MAX__ * 2UL + 1; } |
- |
- static const int digits = __glibcxx_digits (unsigned long); |
- static const int digits10 = __glibcxx_digits10 (unsigned long); |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static unsigned long epsilon() throw() |
- { return 0; } |
- static unsigned long round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static unsigned long infinity() throw() |
- { return static_cast<unsigned long>(0); } |
- static unsigned long quiet_NaN() throw() |
- { return static_cast<unsigned long>(0); } |
- static unsigned long signaling_NaN() throw() |
- { return static_cast<unsigned long>(0); } |
- static unsigned long denorm_min() throw() |
- { return static_cast<unsigned long>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<long long> specialization. |
- template<> |
- struct numeric_limits<long long> |
- { |
- static const bool is_specialized = true; |
- |
- static long long min() throw() |
- { return -__LONG_LONG_MAX__ - 1; } |
- static long long max() throw() |
- { return __LONG_LONG_MAX__; } |
- |
- static const int digits = __glibcxx_digits (long long); |
- static const int digits10 = __glibcxx_digits10 (long long); |
- static const bool is_signed = true; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static long long epsilon() throw() |
- { return 0; } |
- static long long round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static long long infinity() throw() |
- { return static_cast<long long>(0); } |
- static long long quiet_NaN() throw() |
- { return static_cast<long long>(0); } |
- static long long signaling_NaN() throw() |
- { return static_cast<long long>(0); } |
- static long long denorm_min() throw() |
- { return static_cast<long long>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<unsigned long long> specialization. |
- template<> |
- struct numeric_limits<unsigned long long> |
- { |
- static const bool is_specialized = true; |
- |
- static unsigned long long min() throw() |
- { return 0; } |
- static unsigned long long max() throw() |
- { return __LONG_LONG_MAX__ * 2ULL + 1; } |
- |
- static const int digits = __glibcxx_digits (unsigned long long); |
- static const int digits10 = __glibcxx_digits10 (unsigned long long); |
- static const bool is_signed = false; |
- static const bool is_integer = true; |
- static const bool is_exact = true; |
- static const int radix = 2; |
- static unsigned long long epsilon() throw() |
- { return 0; } |
- static unsigned long long round_error() throw() |
- { return 0; } |
- |
- static const int min_exponent = 0; |
- static const int min_exponent10 = 0; |
- static const int max_exponent = 0; |
- static const int max_exponent10 = 0; |
- |
- static const bool has_infinity = false; |
- static const bool has_quiet_NaN = false; |
- static const bool has_signaling_NaN = false; |
- static const float_denorm_style has_denorm = denorm_absent; |
- static const bool has_denorm_loss = false; |
- |
- static unsigned long long infinity() throw() |
- { return static_cast<unsigned long long>(0); } |
- static unsigned long long quiet_NaN() throw() |
- { return static_cast<unsigned long long>(0); } |
- static unsigned long long signaling_NaN() throw() |
- { return static_cast<unsigned long long>(0); } |
- static unsigned long long denorm_min() throw() |
- { return static_cast<unsigned long long>(0); } |
- |
- static const bool is_iec559 = false; |
- static const bool is_bounded = true; |
- static const bool is_modulo = true; |
- |
- static const bool traps = __glibcxx_integral_traps; |
- static const bool tinyness_before = false; |
- static const float_round_style round_style = round_toward_zero; |
- }; |
- |
- /// numeric_limits<float> specialization. |
- template<> |
- struct numeric_limits<float> |
- { |
- static const bool is_specialized = true; |
- |
- static float min() throw() |
- { return __FLT_MIN__; } |
- static float max() throw() |
- { return __FLT_MAX__; } |
- |
- static const int digits = __FLT_MANT_DIG__; |
- static const int digits10 = __FLT_DIG__; |
- static const bool is_signed = true; |
- static const bool is_integer = false; |
- static const bool is_exact = false; |
- static const int radix = __FLT_RADIX__; |
- static float epsilon() throw() |
- { return __FLT_EPSILON__; } |
- static float round_error() throw() |
- { return 0.5F; } |
- |
- static const int min_exponent = __FLT_MIN_EXP__; |
- static const int min_exponent10 = __FLT_MIN_10_EXP__; |
- static const int max_exponent = __FLT_MAX_EXP__; |
- static const int max_exponent10 = __FLT_MAX_10_EXP__; |
- |
- static const bool has_infinity = __FLT_HAS_INFINITY__; |
- static const bool has_quiet_NaN = __FLT_HAS_QUIET_NAN__; |
- static const bool has_signaling_NaN = has_quiet_NaN; |
- static const float_denorm_style has_denorm |
- = bool(__FLT_HAS_DENORM__) ? denorm_present : denorm_absent; |
- static const bool has_denorm_loss = __glibcxx_float_has_denorm_loss; |
- |
- static float infinity() throw() |
- { return __builtin_huge_valf (); } |
- static float quiet_NaN() throw() |
- { return __builtin_nanf (""); } |
- static float signaling_NaN() throw() |
- { return __builtin_nansf (""); } |
- static float denorm_min() throw() |
- { return __FLT_DENORM_MIN__; } |
- |
- static const bool is_iec559 |
- = has_infinity && has_quiet_NaN && has_denorm == denorm_present; |
- static const bool is_bounded = true; |
- static const bool is_modulo = false; |
- |
- static const bool traps = __glibcxx_float_traps; |
- static const bool tinyness_before = __glibcxx_float_tinyness_before; |
- static const float_round_style round_style = round_to_nearest; |
- }; |
- |
-#undef __glibcxx_float_has_denorm_loss |
-#undef __glibcxx_float_traps |
-#undef __glibcxx_float_tinyness_before |
- |
- /// numeric_limits<double> specialization. |
- template<> |
- struct numeric_limits<double> |
- { |
- static const bool is_specialized = true; |
- |
- static double min() throw() |
- { return __DBL_MIN__; } |
- static double max() throw() |
- { return __DBL_MAX__; } |
- |
- static const int digits = __DBL_MANT_DIG__; |
- static const int digits10 = __DBL_DIG__; |
- static const bool is_signed = true; |
- static const bool is_integer = false; |
- static const bool is_exact = false; |
- static const int radix = __FLT_RADIX__; |
- static double epsilon() throw() |
- { return __DBL_EPSILON__; } |
- static double round_error() throw() |
- { return 0.5; } |
- |
- static const int min_exponent = __DBL_MIN_EXP__; |
- static const int min_exponent10 = __DBL_MIN_10_EXP__; |
- static const int max_exponent = __DBL_MAX_EXP__; |
- static const int max_exponent10 = __DBL_MAX_10_EXP__; |
- |
- static const bool has_infinity = __DBL_HAS_INFINITY__; |
- static const bool has_quiet_NaN = __DBL_HAS_QUIET_NAN__; |
- static const bool has_signaling_NaN = has_quiet_NaN; |
- static const float_denorm_style has_denorm |
- = bool(__DBL_HAS_DENORM__) ? denorm_present : denorm_absent; |
- static const bool has_denorm_loss = __glibcxx_double_has_denorm_loss; |
- |
- static double infinity() throw() |
- { return __builtin_huge_val(); } |
- static double quiet_NaN() throw() |
- { return __builtin_nan (""); } |
- static double signaling_NaN() throw() |
- { return __builtin_nans (""); } |
- static double denorm_min() throw() |
- { return __DBL_DENORM_MIN__; } |
- |
- static const bool is_iec559 |
- = has_infinity && has_quiet_NaN && has_denorm == denorm_present; |
- static const bool is_bounded = true; |
- static const bool is_modulo = false; |
- |
- static const bool traps = __glibcxx_double_traps; |
- static const bool tinyness_before = __glibcxx_double_tinyness_before; |
- static const float_round_style round_style = round_to_nearest; |
- }; |
- |
-#undef __glibcxx_double_has_denorm_loss |
-#undef __glibcxx_double_traps |
-#undef __glibcxx_double_tinyness_before |
- |
- /// numeric_limits<long double> specialization. |
- template<> |
- struct numeric_limits<long double> |
- { |
- static const bool is_specialized = true; |
- |
- static long double min() throw() |
- { return __LDBL_MIN__; } |
- static long double max() throw() |
- { return __LDBL_MAX__; } |
- |
- static const int digits = __LDBL_MANT_DIG__; |
- static const int digits10 = __LDBL_DIG__; |
- static const bool is_signed = true; |
- static const bool is_integer = false; |
- static const bool is_exact = false; |
- static const int radix = __FLT_RADIX__; |
- static long double epsilon() throw() |
- { return __LDBL_EPSILON__; } |
- static long double round_error() throw() |
- { return 0.5L; } |
- |
- static const int min_exponent = __LDBL_MIN_EXP__; |
- static const int min_exponent10 = __LDBL_MIN_10_EXP__; |
- static const int max_exponent = __LDBL_MAX_EXP__; |
- static const int max_exponent10 = __LDBL_MAX_10_EXP__; |
- |
- static const bool has_infinity = __LDBL_HAS_INFINITY__; |
- static const bool has_quiet_NaN = __LDBL_HAS_QUIET_NAN__; |
- static const bool has_signaling_NaN = has_quiet_NaN; |
- static const float_denorm_style has_denorm |
- = bool(__LDBL_HAS_DENORM__) ? denorm_present : denorm_absent; |
- static const bool has_denorm_loss |
- = __glibcxx_long_double_has_denorm_loss; |
- |
- static long double infinity() throw() |
- { return __builtin_huge_vall (); } |
- static long double quiet_NaN() throw() |
- { return __builtin_nanl (""); } |
- static long double signaling_NaN() throw() |
- { return __builtin_nansl (""); } |
- static long double denorm_min() throw() |
- { return __LDBL_DENORM_MIN__; } |
- |
- static const bool is_iec559 |
- = has_infinity && has_quiet_NaN && has_denorm == denorm_present; |
- static const bool is_bounded = true; |
- static const bool is_modulo = false; |
- |
- static const bool traps = __glibcxx_long_double_traps; |
- static const bool tinyness_before = __glibcxx_long_double_tinyness_before; |
- static const float_round_style round_style = round_to_nearest; |
- }; |
- |
-#undef __glibcxx_long_double_has_denorm_loss |
-#undef __glibcxx_long_double_traps |
-#undef __glibcxx_long_double_tinyness_before |
- |
-_GLIBCXX_END_NAMESPACE |
- |
-#undef __glibcxx_signed |
-#undef __glibcxx_min |
-#undef __glibcxx_max |
-#undef __glibcxx_digits |
-#undef __glibcxx_digits10 |
- |
-#endif // _GLIBCXX_NUMERIC_LIMITS |