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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/tr1/special_function_util.h')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/tr1/special_function_util.h | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/tr1/special_function_util.h b/gcc-4.4.3/libstdc++-v3/include/tr1/special_function_util.h deleted file mode 100644 index d2699bd85..000000000 --- a/gcc-4.4.3/libstdc++-v3/include/tr1/special_function_util.h +++ /dev/null @@ -1,144 +0,0 @@ -// Special functions -*- C++ -*- - -// Copyright (C) 2006, 2009 -// Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 3, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// Under Section 7 of GPL version 3, you are granted additional -// permissions described in the GCC Runtime Library Exception, version -// 3.1, as published by the Free Software Foundation. - -// You should have received a copy of the GNU General Public License and -// a copy of the GCC Runtime Library Exception along with this program; -// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -// <http://www.gnu.org/licenses/>. - -/** @file tr1/special_function_util.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -// -// ISO C++ 14882 TR1: 5.2 Special functions -// - -// Written by Edward Smith-Rowland based on numerous mathematics books. - -#ifndef _GLIBCXX_TR1_SPECIAL_FUNCTION_UTIL_H -#define _GLIBCXX_TR1_SPECIAL_FUNCTION_UTIL_H 1 - -namespace std -{ -namespace tr1 -{ - - namespace __detail - { - - /// A class to encapsulate type dependent floating point - /// constants. Not everything will be able to be expressed as - /// type logic. - template<typename _Tp> - struct __floating_point_constant - { - static const _Tp __value; - }; - - - /// A structure for numeric constants. - template<typename _Tp> - struct __numeric_constants - { - /// Constant @f$ \pi @f$. - static _Tp __pi() throw() - { return static_cast<_Tp>(3.1415926535897932384626433832795029L); } - /// Constant @f$ \pi / 2 @f$. - static _Tp __pi_2() throw() - { return static_cast<_Tp>(1.5707963267948966192313216916397514L); } - /// Constant @f$ \pi / 3 @f$. - static _Tp __pi_3() throw() - { return static_cast<_Tp>(1.0471975511965977461542144610931676L); } - /// Constant @f$ \pi / 4 @f$. - static _Tp __pi_4() throw() - { return static_cast<_Tp>(0.7853981633974483096156608458198757L); } - /// Constant @f$ 1 / \pi @f$. - static _Tp __1_pi() throw() - { return static_cast<_Tp>(0.3183098861837906715377675267450287L); } - /// Constant @f$ 2 / \sqrt(\pi) @f$. - static _Tp __2_sqrtpi() throw() - { return static_cast<_Tp>(1.1283791670955125738961589031215452L); } - /// Constant @f$ \sqrt(2) @f$. - static _Tp __sqrt2() throw() - { return static_cast<_Tp>(1.4142135623730950488016887242096981L); } - /// Constant @f$ \sqrt(3) @f$. - static _Tp __sqrt3() throw() - { return static_cast<_Tp>(1.7320508075688772935274463415058723L); } - /// Constant @f$ \sqrt(\pi/2) @f$. - static _Tp __sqrtpio2() throw() - { return static_cast<_Tp>(1.2533141373155002512078826424055226L); } - /// Constant @f$ 1 / sqrt(2) @f$. - static _Tp __sqrt1_2() throw() - { return static_cast<_Tp>(0.7071067811865475244008443621048490L); } - /// Constant @f$ \log(\pi) @f$. - static _Tp __lnpi() throw() - { return static_cast<_Tp>(1.1447298858494001741434273513530587L); } - /// Constant Euler's constant @f$ \gamma_E @f$. - static _Tp __gamma_e() throw() - { return static_cast<_Tp>(0.5772156649015328606065120900824024L); } - /// Constant Euler-Mascheroni @f$ e @f$ - static _Tp __euler() throw() - { return static_cast<_Tp>(2.7182818284590452353602874713526625L); } - }; - - -#if _GLIBCXX_USE_C99_MATH && !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC - - /// This is a wrapper for the isnan function. Otherwise, for NaN, - /// all comparisons result in false. If/when we build a std::isnan - /// out of intrinsics, this will disappear completely in favor of - /// std::isnan. - template<typename _Tp> - inline bool __isnan(const _Tp __x) - { - return std::isnan(__x); - } - -#else - - template<typename _Tp> - inline bool __isnan(const _Tp __x) - { - return __builtin_isnan(__x); - } - - template<> - inline bool __isnan<float>(const float __x) - { - return __builtin_isnanf(__x); - } - - template<> - inline bool __isnan<long double>(const long double __x) - { - return __builtin_isnanl(__x); - } - -#endif - - } // namespace __detail - -} -} - -#endif // _GLIBCXX_TR1_SPECIAL_FUNCTION_UTIL_H - |