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d3a7302ec5
The use of #pragma GCC system_header in libstdc++ has led to bugs going undetected for a while due to the silencing of compiler warnings that would have revealed them promptly, and also interferes with warnings about problematic template instantiations induced by user code. But removing it, or even compiling with -Wsystem-header, is also problematic due to warnings about deliberate uses of extensions. So this patch adds #pragma GCC diagnostic as needed to suppress these warnings. The change to acinclude.m4 changes -Wabi to warn only in comparison to ABI 19, to avoid lots of warnings that we now mangle concept requirements, which are in any case still experimental. I checked for any other changes against ABI v15, and found only the <format> lambda mangling, which we can ignore. This also enables -Wsystem-headers while building the library, so we see any warnings not silenced by these #pragmas. libstdc++-v3/ChangeLog: * include/bits/algorithmfwd.h: * include/bits/allocator.h: * include/bits/codecvt.h: * include/bits/concept_check.h: * include/bits/cpp_type_traits.h: * include/bits/hashtable.h: * include/bits/iterator_concepts.h: * include/bits/ostream_insert.h: * include/bits/ranges_base.h: * include/bits/regex_automaton.h: * include/bits/std_abs.h: * include/bits/stl_algo.h: * include/c_compatibility/fenv.h: * include/c_compatibility/inttypes.h: * include/c_compatibility/stdint.h: * include/ext/concurrence.h: * include/ext/type_traits.h: * testsuite/ext/type_traits/add_unsigned_floating_neg.cc: * testsuite/ext/type_traits/add_unsigned_integer_neg.cc: * testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: * testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: * include/bits/basic_ios.tcc: * include/bits/basic_string.tcc: * include/bits/fstream.tcc: * include/bits/istream.tcc: * include/bits/locale_classes.tcc: * include/bits/locale_facets.tcc: * include/bits/ostream.tcc: * include/bits/regex_compiler.tcc: * include/bits/sstream.tcc: * include/bits/streambuf.tcc: * configure: Regenerate. * include/bits/c++config: * include/c/cassert: * include/c/cctype: * include/c/cerrno: * include/c/cfloat: * include/c/climits: * include/c/clocale: * include/c/cmath: * include/c/csetjmp: * include/c/csignal: * include/c/cstdarg: * include/c/cstddef: * include/c/cstdio: * include/c/cstdlib: * include/c/cstring: * include/c/ctime: * include/c/cwchar: * include/c/cwctype: * include/c_global/climits: * include/c_global/cmath: * include/c_global/cstddef: * include/c_global/cstdlib: * include/decimal/decimal: * include/ext/rope: * include/std/any: * include/std/charconv: * include/std/complex: * include/std/coroutine: * include/std/format: * include/std/iomanip: * include/std/limits: * include/std/numbers: * include/tr1/functional: * include/tr1/tuple: * include/tr1/type_traits: * libsupc++/compare: * libsupc++/new: Add #pragma GCC diagnostic to suppress undesired warnings. * acinclude.m4: Change -Wabi version from 2 to 19. gcc/ChangeLog: * ginclude/stdint-wrap.h: Add #pragma GCC diagnostic to suppress undesired warnings. * gsyslimits.h: Likewise.
2239 lines
82 KiB
C++
2239 lines
82 KiB
C++
// The template and inlines for the numeric_limits classes. -*- C++ -*-
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// Copyright (C) 1999-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file include/limits
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* This is a Standard C++ Library header.
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*/
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// Note: this is not a conforming implementation.
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// Written by Gabriel Dos Reis <gdr@codesourcery.com>
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//
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// ISO 14882:1998
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// 18.2.1
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//
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#ifndef _GLIBCXX_NUMERIC_LIMITS
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#define _GLIBCXX_NUMERIC_LIMITS 1
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#pragma GCC system_header
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wpedantic" // Q suffix
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#pragma GCC diagnostic ignored "-Wlong-long"
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#pragma GCC diagnostic ignored "-Wc++23-extensions"
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#include <bits/c++config.h>
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//
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// The numeric_limits<> traits document implementation-defined aspects
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// of fundamental arithmetic data types (integers and floating points).
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// From Standard C++ point of view, there are 14 such types:
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// * integers
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// bool (1)
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// char, signed char, unsigned char, wchar_t (4)
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// short, unsigned short (2)
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// int, unsigned (2)
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// long, unsigned long (2)
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//
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// * floating points
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// float (1)
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// double (1)
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// long double (1)
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//
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// GNU C++ understands (where supported by the host C-library)
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// * integer
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// long long, unsigned long long (2)
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//
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// which brings us to 16 fundamental arithmetic data types in GNU C++.
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//
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//
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// Since a numeric_limits<> is a bit tricky to get right, we rely on
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// an interface composed of macros which should be defined in config/os
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// or config/cpu when they differ from the generic (read arbitrary)
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// definitions given here.
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//
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// These values can be overridden in the target configuration file.
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// The default values are appropriate for many 32-bit targets.
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// GCC only intrinsically supports modulo integral types. The only remaining
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// integral exceptional values is division by zero. Only targets that do not
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// signal division by zero in some "hard to ignore" way should use false.
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#ifndef __glibcxx_integral_traps
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# define __glibcxx_integral_traps true
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#endif
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// float
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//
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// Default values. Should be overridden in configuration files if necessary.
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#ifndef __glibcxx_float_has_denorm_loss
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# define __glibcxx_float_has_denorm_loss false
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#endif
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#ifndef __glibcxx_float_traps
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# define __glibcxx_float_traps false
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#endif
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#ifndef __glibcxx_float_tinyness_before
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# define __glibcxx_float_tinyness_before false
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#endif
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// double
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// Default values. Should be overridden in configuration files if necessary.
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#ifndef __glibcxx_double_has_denorm_loss
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# define __glibcxx_double_has_denorm_loss false
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#endif
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#ifndef __glibcxx_double_traps
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# define __glibcxx_double_traps false
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#endif
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#ifndef __glibcxx_double_tinyness_before
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# define __glibcxx_double_tinyness_before false
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#endif
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// long double
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// Default values. Should be overridden in configuration files if necessary.
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#ifndef __glibcxx_long_double_has_denorm_loss
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# define __glibcxx_long_double_has_denorm_loss false
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#endif
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#ifndef __glibcxx_long_double_traps
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# define __glibcxx_long_double_traps false
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#endif
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#ifndef __glibcxx_long_double_tinyness_before
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# define __glibcxx_long_double_tinyness_before false
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#endif
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// You should not need to define any macros below this point.
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#define __glibcxx_signed_b(T,B) ((T)(-1) < 0)
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#define __glibcxx_min_b(T,B) \
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(__glibcxx_signed_b (T,B) ? -__glibcxx_max_b (T,B) - 1 : (T)0)
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#define __glibcxx_max_b(T,B) \
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(__glibcxx_signed_b (T,B) ? \
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(((((T)1 << (__glibcxx_digits_b (T,B) - 1)) - 1) << 1) + 1) : ~(T)0)
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#define __glibcxx_digits_b(T,B) \
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(B - __glibcxx_signed_b (T,B))
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// The fraction 643/2136 approximates log10(2) to 7 significant digits.
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#define __glibcxx_digits10_b(T,B) \
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(__glibcxx_digits_b (T,B) * 643L / 2136)
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#define __glibcxx_signed(T) \
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__glibcxx_signed_b (T, sizeof(T) * __CHAR_BIT__)
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#define __glibcxx_min(T) \
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__glibcxx_min_b (T, sizeof(T) * __CHAR_BIT__)
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#define __glibcxx_max(T) \
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__glibcxx_max_b (T, sizeof(T) * __CHAR_BIT__)
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#define __glibcxx_digits(T) \
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__glibcxx_digits_b (T, sizeof(T) * __CHAR_BIT__)
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#define __glibcxx_digits10(T) \
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__glibcxx_digits10_b (T, sizeof(T) * __CHAR_BIT__)
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#define __glibcxx_max_digits10(T) \
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(2 + (T) * 643L / 2136)
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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/**
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* @brief Describes the rounding style for floating-point types.
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*
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* This is used in the std::numeric_limits class.
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*/
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enum float_round_style
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{
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round_indeterminate = -1, ///< Intermediate.
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round_toward_zero = 0, ///< To zero.
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round_to_nearest = 1, ///< To the nearest representable value.
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round_toward_infinity = 2, ///< To infinity.
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round_toward_neg_infinity = 3 ///< To negative infinity.
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};
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/**
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* @brief Describes the denormalization for floating-point types.
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*
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* These values represent the presence or absence of a variable number
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* of exponent bits. This type is used in the std::numeric_limits class.
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*/
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enum float_denorm_style
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{
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/// Indeterminate at compile time whether denormalized values are allowed.
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denorm_indeterminate = -1,
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/// The type does not allow denormalized values.
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denorm_absent = 0,
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/// The type allows denormalized values.
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denorm_present = 1
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};
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/**
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* @brief Part of std::numeric_limits.
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*
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* The @c static @c const members are usable as integral constant
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* expressions.
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*
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* @note This is a separate class for purposes of efficiency; you
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* should only access these members as part of an instantiation
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* of the std::numeric_limits class.
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*/
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struct __numeric_limits_base
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{
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/** This will be true for all fundamental types (which have
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specializations), and false for everything else. */
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static _GLIBCXX_USE_CONSTEXPR bool is_specialized = false;
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/** The number of @c radix digits that be represented without change: for
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integer types, the number of non-sign bits in the mantissa; for
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floating types, the number of @c radix digits in the mantissa. */
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static _GLIBCXX_USE_CONSTEXPR int digits = 0;
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/** The number of base 10 digits that can be represented without change. */
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static _GLIBCXX_USE_CONSTEXPR int digits10 = 0;
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#if __cplusplus >= 201103L
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/** The number of base 10 digits required to ensure that values which
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differ are always differentiated. */
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static constexpr int max_digits10 = 0;
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#endif
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/** True if the type is signed. */
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static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
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/** True if the type is integer. */
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static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
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/** True if the type uses an exact representation. All integer types are
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exact, but not all exact types are integer. For example, rational and
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fixed-exponent representations are exact but not integer. */
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static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
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/** For integer types, specifies the base of the representation. For
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floating types, specifies the base of the exponent representation. */
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static _GLIBCXX_USE_CONSTEXPR int radix = 0;
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/** The minimum negative integer such that @c radix raised to the power of
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(one less than that integer) is a normalized floating point number. */
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static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
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/** The minimum negative integer such that 10 raised to that power is in
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the range of normalized floating point numbers. */
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static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
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/** The maximum positive integer such that @c radix raised to the power of
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(one less than that integer) is a representable finite floating point
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number. */
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static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
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/** The maximum positive integer such that 10 raised to that power is in
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the range of representable finite floating point numbers. */
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static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
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/** True if the type has a representation for positive infinity. */
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static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
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/** True if the type has a representation for a quiet (non-signaling)
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Not a Number. */
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static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
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/** True if the type has a representation for a signaling
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Not a Number. */
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static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
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/** See std::float_denorm_style for more information. */
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static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm = denorm_absent;
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/** True if loss of accuracy is detected as a denormalization loss,
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rather than as an inexact result. */
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static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
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/** True if-and-only-if the type adheres to the IEC 559 standard, also
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known as IEEE 754. (Only makes sense for floating point types.) */
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static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
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/** True if the set of values representable by the type is
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finite. All built-in types are bounded, this member would be
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false for arbitrary precision types. */
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static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false;
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/** True if the type is @e modulo. A type is modulo if, for any
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operation involving +, -, or * on values of that type whose
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result would fall outside the range [min(),max()], the value
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returned differs from the true value by an integer multiple of
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max() - min() + 1. On most machines, this is false for floating
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types, true for unsigned integers, and true for signed integers.
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See PR22200 about signed integers. */
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static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
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/** True if trapping is implemented for this type. */
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static _GLIBCXX_USE_CONSTEXPR bool traps = false;
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/** True if tininess is detected before rounding. (see IEC 559) */
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static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
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/** See std::float_round_style for more information. This is only
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meaningful for floating types; integer types will all be
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round_toward_zero. */
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static _GLIBCXX_USE_CONSTEXPR float_round_style round_style =
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round_toward_zero;
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};
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/**
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* @brief Properties of fundamental types.
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*
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* This class allows a program to obtain information about the
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* representation of a fundamental type on a given platform. For
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* non-fundamental types, the functions will return 0 and the data
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* members will all be @c false.
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*/
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template<typename _Tp>
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struct numeric_limits : public __numeric_limits_base
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{
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/** The minimum finite value, or for floating types with
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denormalization, the minimum positive normalized value. */
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static _GLIBCXX_CONSTEXPR _Tp
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min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The maximum finite value. */
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static _GLIBCXX_CONSTEXPR _Tp
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max() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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#if __cplusplus >= 201103L
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/** A finite value x such that there is no other finite value y
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* where y < x. */
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static constexpr _Tp
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lowest() noexcept { return _Tp(); }
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#endif
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/** The @e machine @e epsilon: the difference between 1 and the least
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value greater than 1 that is representable. */
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static _GLIBCXX_CONSTEXPR _Tp
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epsilon() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The maximum rounding error measurement (see LIA-1). */
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static _GLIBCXX_CONSTEXPR _Tp
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round_error() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The representation of positive infinity, if @c has_infinity. */
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static _GLIBCXX_CONSTEXPR _Tp
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infinity() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The representation of a quiet Not a Number,
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if @c has_quiet_NaN. */
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static _GLIBCXX_CONSTEXPR _Tp
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quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The representation of a signaling Not a Number, if
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@c has_signaling_NaN. */
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static _GLIBCXX_CONSTEXPR _Tp
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signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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/** The minimum positive denormalized value. For types where
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@c has_denorm is false, this is the minimum positive normalized
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value. */
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static _GLIBCXX_CONSTEXPR _Tp
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denorm_min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
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};
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 559. numeric_limits<const T>
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template<typename _Tp>
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struct numeric_limits<const _Tp>
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: public numeric_limits<_Tp> { };
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template<typename _Tp>
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struct numeric_limits<volatile _Tp>
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: public numeric_limits<_Tp> { };
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template<typename _Tp>
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struct numeric_limits<const volatile _Tp>
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: public numeric_limits<_Tp> { };
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// Now there follow 16 explicit specializations. Yes, 16. Make sure
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// you get the count right. (18 in C++11 mode, with char16_t and char32_t.)
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// (+1 if char8_t is enabled.)
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 184. numeric_limits<bool> wording problems
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/// numeric_limits<bool> specialization.
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template<>
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struct numeric_limits<bool>
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{
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static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
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static _GLIBCXX_CONSTEXPR bool
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min() _GLIBCXX_USE_NOEXCEPT { return false; }
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static _GLIBCXX_CONSTEXPR bool
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max() _GLIBCXX_USE_NOEXCEPT { return true; }
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#if __cplusplus >= 201103L
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static constexpr bool
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lowest() noexcept { return min(); }
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#endif
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static _GLIBCXX_USE_CONSTEXPR int digits = 1;
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static _GLIBCXX_USE_CONSTEXPR int digits10 = 0;
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#if __cplusplus >= 201103L
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static constexpr int max_digits10 = 0;
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#endif
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static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
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static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
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static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
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static _GLIBCXX_USE_CONSTEXPR int radix = 2;
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static _GLIBCXX_CONSTEXPR bool
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epsilon() _GLIBCXX_USE_NOEXCEPT { return false; }
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static _GLIBCXX_CONSTEXPR bool
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return false; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return false; }
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return false; }
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return false; }
|
|
|
|
static _GLIBCXX_CONSTEXPR bool
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return false; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR 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 _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<char> specialization.
|
|
template<>
|
|
struct numeric_limits<char>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min(char); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max(char); }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr char
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char);
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR
|
|
char infinity() _GLIBCXX_USE_NOEXCEPT { return char(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<char>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<signed char> specialization.
|
|
template<>
|
|
struct numeric_limits<signed char>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
min() _GLIBCXX_USE_NOEXCEPT { return -__SCHAR_MAX__ - 1; }
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr signed char
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (signed char);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (signed char);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<signed char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<signed char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR signed char
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<signed char>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<unsigned char> specialization.
|
|
template<>
|
|
struct numeric_limits<unsigned char>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__ * 2U + 1; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr unsigned char
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (unsigned char);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (unsigned char);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned char>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned char
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned char>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<wchar_t> specialization.
|
|
template<>
|
|
struct numeric_limits<wchar_t>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (wchar_t); }
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (wchar_t); }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr wchar_t
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (wchar_t);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (wchar_t);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (wchar_t);
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR wchar_t
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
#if _GLIBCXX_USE_CHAR8_T
|
|
/// numeric_limits<char8_t> specialization.
|
|
template<>
|
|
struct numeric_limits<char8_t>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (char8_t); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (char8_t); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
lowest() _GLIBCXX_USE_NOEXCEPT { return min(); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char8_t);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char8_t);
|
|
static _GLIBCXX_USE_CONSTEXPR int max_digits10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char8_t);
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return char8_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR char8_t
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return char8_t(); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
#endif
|
|
|
|
#if __cplusplus >= 201103L
|
|
/// numeric_limits<char16_t> specialization.
|
|
template<>
|
|
struct numeric_limits<char16_t>
|
|
{
|
|
static constexpr bool is_specialized = true;
|
|
|
|
static constexpr char16_t
|
|
min() noexcept { return __glibcxx_min (char16_t); }
|
|
|
|
static constexpr char16_t
|
|
max() noexcept { return __glibcxx_max (char16_t); }
|
|
|
|
static constexpr char16_t
|
|
lowest() noexcept { return min(); }
|
|
|
|
static constexpr int digits = __glibcxx_digits (char16_t);
|
|
static constexpr int digits10 = __glibcxx_digits10 (char16_t);
|
|
static constexpr int max_digits10 = 0;
|
|
static constexpr bool is_signed = __glibcxx_signed (char16_t);
|
|
static constexpr bool is_integer = true;
|
|
static constexpr bool is_exact = true;
|
|
static constexpr int radix = 2;
|
|
|
|
static constexpr char16_t
|
|
epsilon() noexcept { return 0; }
|
|
|
|
static constexpr char16_t
|
|
round_error() noexcept { return 0; }
|
|
|
|
static constexpr int min_exponent = 0;
|
|
static constexpr int min_exponent10 = 0;
|
|
static constexpr int max_exponent = 0;
|
|
static constexpr int max_exponent10 = 0;
|
|
|
|
static constexpr bool has_infinity = false;
|
|
static constexpr bool has_quiet_NaN = false;
|
|
static constexpr bool has_signaling_NaN = false;
|
|
static constexpr float_denorm_style has_denorm = denorm_absent;
|
|
static constexpr bool has_denorm_loss = false;
|
|
|
|
static constexpr char16_t
|
|
infinity() noexcept { return char16_t(); }
|
|
|
|
static constexpr char16_t
|
|
quiet_NaN() noexcept { return char16_t(); }
|
|
|
|
static constexpr char16_t
|
|
signaling_NaN() noexcept { return char16_t(); }
|
|
|
|
static constexpr char16_t
|
|
denorm_min() noexcept { return char16_t(); }
|
|
|
|
static constexpr bool is_iec559 = false;
|
|
static constexpr bool is_bounded = true;
|
|
static constexpr bool is_modulo = !is_signed;
|
|
|
|
static constexpr bool traps = __glibcxx_integral_traps;
|
|
static constexpr bool tinyness_before = false;
|
|
static constexpr float_round_style round_style = round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<char32_t> specialization.
|
|
template<>
|
|
struct numeric_limits<char32_t>
|
|
{
|
|
static constexpr bool is_specialized = true;
|
|
|
|
static constexpr char32_t
|
|
min() noexcept { return __glibcxx_min (char32_t); }
|
|
|
|
static constexpr char32_t
|
|
max() noexcept { return __glibcxx_max (char32_t); }
|
|
|
|
static constexpr char32_t
|
|
lowest() noexcept { return min(); }
|
|
|
|
static constexpr int digits = __glibcxx_digits (char32_t);
|
|
static constexpr int digits10 = __glibcxx_digits10 (char32_t);
|
|
static constexpr int max_digits10 = 0;
|
|
static constexpr bool is_signed = __glibcxx_signed (char32_t);
|
|
static constexpr bool is_integer = true;
|
|
static constexpr bool is_exact = true;
|
|
static constexpr int radix = 2;
|
|
|
|
static constexpr char32_t
|
|
epsilon() noexcept { return 0; }
|
|
|
|
static constexpr char32_t
|
|
round_error() noexcept { return 0; }
|
|
|
|
static constexpr int min_exponent = 0;
|
|
static constexpr int min_exponent10 = 0;
|
|
static constexpr int max_exponent = 0;
|
|
static constexpr int max_exponent10 = 0;
|
|
|
|
static constexpr bool has_infinity = false;
|
|
static constexpr bool has_quiet_NaN = false;
|
|
static constexpr bool has_signaling_NaN = false;
|
|
static constexpr float_denorm_style has_denorm = denorm_absent;
|
|
static constexpr bool has_denorm_loss = false;
|
|
|
|
static constexpr char32_t
|
|
infinity() noexcept { return char32_t(); }
|
|
|
|
static constexpr char32_t
|
|
quiet_NaN() noexcept { return char32_t(); }
|
|
|
|
static constexpr char32_t
|
|
signaling_NaN() noexcept { return char32_t(); }
|
|
|
|
static constexpr char32_t
|
|
denorm_min() noexcept { return char32_t(); }
|
|
|
|
static constexpr bool is_iec559 = false;
|
|
static constexpr bool is_bounded = true;
|
|
static constexpr bool is_modulo = !is_signed;
|
|
|
|
static constexpr bool traps = __glibcxx_integral_traps;
|
|
static constexpr bool tinyness_before = false;
|
|
static constexpr float_round_style round_style = round_toward_zero;
|
|
};
|
|
#endif
|
|
|
|
/// numeric_limits<short> specialization.
|
|
template<>
|
|
struct numeric_limits<short>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
min() _GLIBCXX_USE_NOEXCEPT { return -__SHRT_MAX__ - 1; }
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr short
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (short);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (short);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return short(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR short
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return short(); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<unsigned short> specialization.
|
|
template<>
|
|
struct numeric_limits<unsigned short>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__ * 2U + 1; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr unsigned short
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (unsigned short);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (unsigned short);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned short>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned short>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned short>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned short
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned short>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<int> specialization.
|
|
template<>
|
|
struct numeric_limits<int>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
min() _GLIBCXX_USE_NOEXCEPT { return -__INT_MAX__ - 1; }
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (int);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (int);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR int
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<int>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<unsigned int> specialization.
|
|
template<>
|
|
struct numeric_limits<unsigned int>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__ * 2U + 1; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr unsigned int
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (unsigned int);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (unsigned int);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<unsigned int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned int>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned int
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned int>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<long> specialization.
|
|
template<>
|
|
struct numeric_limits<long>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_MAX__ - 1; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr long
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (long);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (long);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<unsigned long> specialization.
|
|
template<>
|
|
struct numeric_limits<unsigned long>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__ * 2UL + 1; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr unsigned long
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (unsigned long);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (unsigned long);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<long long> specialization.
|
|
template<>
|
|
struct numeric_limits<long long>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_LONG_MAX__ - 1; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr long long
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (long long);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (long long);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long long
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<long long>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
/// numeric_limits<unsigned long long> specialization.
|
|
template<>
|
|
struct numeric_limits<unsigned long long>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__ * 2ULL + 1; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr unsigned long long
|
|
lowest() noexcept { return min(); }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits
|
|
= __glibcxx_digits (unsigned long long);
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10
|
|
= __glibcxx_digits10 (unsigned long long);
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 0;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long long>(0); }
|
|
|
|
static _GLIBCXX_CONSTEXPR unsigned long long
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return static_cast<unsigned long long>(0); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_toward_zero;
|
|
};
|
|
|
|
#define __INT_N(TYPE, BITSIZE, EXT, UEXT) \
|
|
__extension__ \
|
|
template<> \
|
|
struct numeric_limits<TYPE> \
|
|
{ \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min_b (TYPE, BITSIZE); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max_b (TYPE, BITSIZE); } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int digits \
|
|
= BITSIZE - 1; \
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 \
|
|
= (BITSIZE - 1) * 643L / 2136; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \
|
|
\
|
|
EXT \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \
|
|
= denorm_absent; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
infinity() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR TYPE \
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps \
|
|
= __glibcxx_integral_traps; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \
|
|
= round_toward_zero; \
|
|
}; \
|
|
\
|
|
__extension__ \
|
|
template<> \
|
|
struct numeric_limits<unsigned TYPE> \
|
|
{ \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
min() _GLIBCXX_USE_NOEXCEPT { return 0; } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
max() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __glibcxx_max_b (unsigned TYPE, BITSIZE); } \
|
|
\
|
|
UEXT \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int digits \
|
|
= BITSIZE; \
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 \
|
|
= BITSIZE * 643L / 2136; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = 2; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \
|
|
= denorm_absent; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
infinity() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<unsigned TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<unsigned TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<unsigned TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR unsigned TYPE \
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return static_cast<unsigned TYPE>(0); } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \
|
|
= round_toward_zero; \
|
|
};
|
|
|
|
#if __cplusplus >= 201103L
|
|
|
|
#define __INT_N_201103(TYPE) \
|
|
static constexpr TYPE \
|
|
lowest() noexcept { return min(); } \
|
|
static constexpr int max_digits10 = 0;
|
|
|
|
#define __INT_N_U201103(TYPE) \
|
|
static constexpr unsigned TYPE \
|
|
lowest() noexcept { return min(); } \
|
|
static constexpr int max_digits10 = 0;
|
|
|
|
#else
|
|
#define __INT_N_201103(TYPE)
|
|
#define __INT_N_U201103(TYPE)
|
|
#endif
|
|
|
|
#if !defined(__STRICT_ANSI__)
|
|
#ifdef __GLIBCXX_TYPE_INT_N_0
|
|
__INT_N(__GLIBCXX_TYPE_INT_N_0, __GLIBCXX_BITSIZE_INT_N_0,
|
|
__INT_N_201103 (__GLIBCXX_TYPE_INT_N_0),
|
|
__INT_N_U201103 (__GLIBCXX_TYPE_INT_N_0))
|
|
#endif
|
|
#ifdef __GLIBCXX_TYPE_INT_N_1
|
|
__INT_N (__GLIBCXX_TYPE_INT_N_1, __GLIBCXX_BITSIZE_INT_N_1,
|
|
__INT_N_201103 (__GLIBCXX_TYPE_INT_N_1),
|
|
__INT_N_U201103 (__GLIBCXX_TYPE_INT_N_1))
|
|
#endif
|
|
#ifdef __GLIBCXX_TYPE_INT_N_2
|
|
__INT_N (__GLIBCXX_TYPE_INT_N_2, __GLIBCXX_BITSIZE_INT_N_2,
|
|
__INT_N_201103 (__GLIBCXX_TYPE_INT_N_2),
|
|
__INT_N_U201103 (__GLIBCXX_TYPE_INT_N_2))
|
|
#endif
|
|
#ifdef __GLIBCXX_TYPE_INT_N_3
|
|
__INT_N (__GLIBCXX_TYPE_INT_N_3, __GLIBCXX_BITSIZE_INT_N_3,
|
|
__INT_N_201103 (__GLIBCXX_TYPE_INT_N_3),
|
|
__INT_N_U201103 (__GLIBCXX_TYPE_INT_N_3))
|
|
#endif
|
|
|
|
#elif defined __STRICT_ANSI__ && defined __SIZEOF_INT128__
|
|
__INT_N(__int128, 128,
|
|
__INT_N_201103 (__int128),
|
|
__INT_N_U201103 (__int128))
|
|
#endif
|
|
|
|
#undef __INT_N
|
|
#undef __INT_N_201103
|
|
#undef __INT_N_U201103
|
|
|
|
|
|
/// numeric_limits<float> specialization.
|
|
template<>
|
|
struct numeric_limits<float>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __FLT_MIN__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __FLT_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr float
|
|
lowest() noexcept { return -__FLT_MAX__; }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __FLT_MANT_DIG__;
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __FLT_DIG__;
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10
|
|
= __glibcxx_max_digits10 (__FLT_MANT_DIG__);
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return __FLT_EPSILON__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5F; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = __FLT_MIN_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __FLT_MIN_10_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = __FLT_MAX_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __FLT_MAX_10_EXP__;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __FLT_HAS_INFINITY__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __FLT_HAS_QUIET_NAN__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= bool(__FLT_HAS_DENORM__) ? denorm_present : denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
|
|
= __glibcxx_float_has_denorm_loss;
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_valf(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanf(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansf(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR float
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return __FLT_DENORM_MIN__; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559
|
|
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_float_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before
|
|
= __glibcxx_float_tinyness_before;
|
|
static _GLIBCXX_USE_CONSTEXPR 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 _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __DBL_MIN__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __DBL_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr double
|
|
lowest() noexcept { return -__DBL_MAX__; }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __DBL_MANT_DIG__;
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __DBL_DIG__;
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10
|
|
= __glibcxx_max_digits10 (__DBL_MANT_DIG__);
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return __DBL_EPSILON__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = __DBL_MIN_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __DBL_MIN_10_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = __DBL_MAX_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __DBL_MAX_10_EXP__;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __DBL_HAS_INFINITY__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __DBL_HAS_QUIET_NAN__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= bool(__DBL_HAS_DENORM__) ? denorm_present : denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
|
|
= __glibcxx_double_has_denorm_loss;
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_val(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nan(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nans(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR double
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return __DBL_DENORM_MIN__; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559
|
|
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_double_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before
|
|
= __glibcxx_double_tinyness_before;
|
|
static _GLIBCXX_USE_CONSTEXPR 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 _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MIN__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
max() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MAX__; }
|
|
|
|
#if __cplusplus >= 201103L
|
|
static constexpr long double
|
|
lowest() noexcept { return -__LDBL_MAX__; }
|
|
#endif
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __LDBL_MANT_DIG__;
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __LDBL_DIG__;
|
|
#if __cplusplus >= 201103L
|
|
static _GLIBCXX_USE_CONSTEXPR int max_digits10
|
|
= __glibcxx_max_digits10 (__LDBL_MANT_DIG__);
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT { return __LDBL_EPSILON__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5L; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = __LDBL_MIN_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __LDBL_MIN_10_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = __LDBL_MAX_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __LDBL_MAX_10_EXP__;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __LDBL_HAS_INFINITY__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __LDBL_HAS_QUIET_NAN__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= bool(__LDBL_HAS_DENORM__) ? denorm_present : denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss
|
|
= __glibcxx_long_double_has_denorm_loss;
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_vall(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanl(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansl(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR long double
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_DENORM_MIN__; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559
|
|
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_long_double_traps;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before =
|
|
__glibcxx_long_double_tinyness_before;
|
|
static _GLIBCXX_USE_CONSTEXPR 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
|
|
|
|
#define __glibcxx_concat3_(P,M,S) P ## M ## S
|
|
#define __glibcxx_concat3(P,M,S) __glibcxx_concat3_ (P,M,S)
|
|
|
|
#if __cplusplus >= 201103L
|
|
# define __max_digits10 max_digits10
|
|
#endif
|
|
|
|
#define __glibcxx_float_n(BITSIZE) \
|
|
__extension__ \
|
|
template<> \
|
|
struct numeric_limits<_Float##BITSIZE> \
|
|
{ \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
min() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __glibcxx_concat3 (__FLT, BITSIZE, _MIN__); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
max() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __glibcxx_concat3 (__FLT, BITSIZE, _MAX__); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
lowest() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return -__glibcxx_concat3 (__FLT, BITSIZE, _MAX__); } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int digits \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _MANT_DIG__); \
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _DIG__); \
|
|
static _GLIBCXX_USE_CONSTEXPR int __max_digits10 \
|
|
= __glibcxx_max_digits10 (__glibcxx_concat3 (__FLT, BITSIZE, \
|
|
_MANT_DIG__)); \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __glibcxx_concat3 (__FLT, BITSIZE, _EPSILON__); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5F##BITSIZE; } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _MIN_EXP__); \
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _MIN_10_EXP__); \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _MAX_EXP__); \
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _MAX_10_EXP__); \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _HAS_INFINITY__); \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN \
|
|
= __glibcxx_concat3 (__FLT, BITSIZE, _HAS_QUIET_NAN__); \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN \
|
|
= has_quiet_NaN; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \
|
|
= bool(__glibcxx_concat3 (__FLT, BITSIZE, _HAS_DENORM__)) \
|
|
? denorm_present : denorm_absent; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
infinity() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __builtin_huge_valf##BITSIZE(); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __builtin_nanf##BITSIZE(""); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __builtin_nansf##BITSIZE(""); } \
|
|
\
|
|
static _GLIBCXX_CONSTEXPR _Float##BITSIZE \
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT \
|
|
{ return __glibcxx_concat3 (__FLT, BITSIZE, _DENORM_MIN__); } \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 \
|
|
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;\
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; \
|
|
\
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \
|
|
= round_to_nearest; \
|
|
}; \
|
|
|
|
#ifdef __STDCPP_FLOAT16_T__
|
|
__glibcxx_float_n(16)
|
|
#endif
|
|
#ifdef __FLT32_DIG__
|
|
__glibcxx_float_n(32)
|
|
#endif
|
|
#ifdef __FLT64_DIG__
|
|
__glibcxx_float_n(64)
|
|
#endif
|
|
#ifdef __FLT128_DIG__
|
|
__glibcxx_float_n(128)
|
|
#endif
|
|
#undef __glibcxx_float_n
|
|
#undef __glibcxx_concat3
|
|
#undef __glibcxx_concat3_
|
|
|
|
#if __cplusplus >= 201103L
|
|
# undef __max_digits10
|
|
#endif
|
|
|
|
#ifdef __STDCPP_BFLOAT16_T__
|
|
__extension__
|
|
template<>
|
|
struct numeric_limits<__gnu_cxx::__bfloat16_t>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __BFLT16_MIN__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
max() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __BFLT16_MAX__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
lowest() _GLIBCXX_USE_NOEXCEPT
|
|
{ return -__BFLT16_MAX__; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = __BFLT16_MANT_DIG__;
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = __BFLT16_DIG__;
|
|
#if __cplusplus >= 201103L
|
|
static _GLIBCXX_USE_CONSTEXPR int max_digits10
|
|
= __glibcxx_max_digits10 (__BFLT16_MANT_DIG__);
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __BFLT16_EPSILON__; }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5BF16; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = __BFLT16_MIN_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __BFLT16_MIN_10_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = __BFLT16_MAX_EXP__;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __BFLT16_MAX_10_EXP__;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity
|
|
= __BFLT16_HAS_INFINITY__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN
|
|
= __BFLT16_HAS_QUIET_NAN__;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN;
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= bool(__BFLT16_HAS_DENORM__) ? denorm_present : denorm_absent;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __gnu_cxx::__bfloat16_t(__builtin_huge_valf()); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __gnu_cxx::__bfloat16_t(__builtin_nanf("")); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __builtin_nansf16b(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __gnu_cxx::__bfloat16_t
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __BFLT16_DENORM_MIN__; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559
|
|
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_to_nearest;
|
|
};
|
|
#endif // __STDCPP_BFLOAT16_T__
|
|
|
|
#if defined(_GLIBCXX_USE_FLOAT128)
|
|
// We either need Q literal suffixes, or IEEE double.
|
|
#if ! defined(__STRICT_ANSI__) || defined(_GLIBCXX_DOUBLE_IS_IEEE_BINARY64)
|
|
__extension__
|
|
template<>
|
|
struct numeric_limits<__float128>
|
|
{
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
min() _GLIBCXX_USE_NOEXCEPT
|
|
{
|
|
#ifdef __STRICT_ANSI__
|
|
// 0x1.0p-30 * 0x1.0p-16352
|
|
return double(9.3132257461547852e-10) * _S_1pm16352();
|
|
#else
|
|
return __extension__ 0x1.0p-16382Q;
|
|
#endif
|
|
}
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
max() _GLIBCXX_USE_NOEXCEPT
|
|
{
|
|
#ifdef __STRICT_ANSI__
|
|
// (0x1.fffffffffffffp+127 + 0x0.fffffffffffffp+75 + 0x0.ffp+23)
|
|
// * 0x1.0p16256
|
|
return (__float128(double(3.4028236692093843e+38))
|
|
+ double(3.7778931862957153e+22) + double(8.35584e+6))
|
|
* _S_1p16256();
|
|
#else
|
|
return __extension__ 0x1.ffffffffffffffffffffffffffffp+16383Q;
|
|
#endif
|
|
}
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
lowest() _GLIBCXX_USE_NOEXCEPT
|
|
{ return -max(); }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int digits = 113;
|
|
static _GLIBCXX_USE_CONSTEXPR int digits10 = 33;
|
|
#if __cplusplus >= 201103L
|
|
static constexpr int max_digits10 = 35;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_integer = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_exact = false;
|
|
static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__;
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
epsilon() _GLIBCXX_USE_NOEXCEPT
|
|
{ return double(1.9259299443872359e-34); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5; }
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent = -16381;
|
|
static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = -4931;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent = 16384;
|
|
static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 4932;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_infinity = 1;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = 1;
|
|
#if __has_builtin(__builtin_nansq) \
|
|
|| (__has_builtin(__builtin_bit_cast) && __has_builtin(__builtin_nansf128))
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = true;
|
|
#else
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
|
|
#endif
|
|
static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
|
|
= denorm_present;
|
|
static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
infinity() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __builtin_huge_val(); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
quiet_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{ return __builtin_nan(""); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
signaling_NaN() _GLIBCXX_USE_NOEXCEPT
|
|
{
|
|
#if __has_builtin(__builtin_nansq)
|
|
return __builtin_nansq("");
|
|
#elif __has_builtin(__builtin_bit_cast) && __has_builtin(__builtin_nansf128)
|
|
return __builtin_bit_cast(__float128, __builtin_nansf128(""));
|
|
#else
|
|
return quiet_NaN();
|
|
#endif
|
|
}
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
denorm_min() _GLIBCXX_USE_NOEXCEPT
|
|
{
|
|
#if defined(__STRICT_ANSI__) || defined(__INTEL_COMPILER)
|
|
// 0x1.0p-142 * 0x1.0p-16352
|
|
return double(1.7936620343357659e-43) * _S_1pm16352();
|
|
#else
|
|
return __extension__ 0x1.0p-16494Q;
|
|
#endif
|
|
}
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = has_signaling_NaN;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
|
|
static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
|
|
|
|
static _GLIBCXX_USE_CONSTEXPR bool traps = false;
|
|
static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
|
|
static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
|
|
= round_to_nearest;
|
|
|
|
#if defined(__STRICT_ANSI__) || defined(__INTEL_COMPILER)
|
|
private:
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
_S_4p(__float128 __v) _GLIBCXX_USE_NOEXCEPT
|
|
{ return __v * __v * __v * __v; }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
_S_1pm4088() _GLIBCXX_USE_NOEXCEPT
|
|
{ return _S_4p(/* 0x1.0p-1022 */ double(2.2250738585072014e-308)); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
_S_1pm16352() _GLIBCXX_USE_NOEXCEPT
|
|
{ return _S_4p(_S_1pm4088()); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
_S_1p4064() _GLIBCXX_USE_NOEXCEPT
|
|
{ return _S_4p(/* 0x1.0p+1016 */ double(7.0222388080559215e+305)); }
|
|
|
|
static _GLIBCXX_CONSTEXPR __float128
|
|
_S_1p16256() _GLIBCXX_USE_NOEXCEPT
|
|
{ return _S_4p(_S_1p4064()); }
|
|
#endif
|
|
};
|
|
#endif // !__STRICT_ANSI__ || DOUBLE_IS_IEEE_BINARY64
|
|
#endif // _GLIBCXX_USE_FLOAT128
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#undef __glibcxx_signed
|
|
#undef __glibcxx_min
|
|
#undef __glibcxx_max
|
|
#undef __glibcxx_digits
|
|
#undef __glibcxx_digits10
|
|
#undef __glibcxx_max_digits10
|
|
|
|
#pragma GCC diagnostic pop
|
|
#endif // _GLIBCXX_NUMERIC_LIMITS
|