248 lines
6.2 KiB
C++
248 lines
6.2 KiB
C++
// -*- C++ -*- C math library.
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// Copyright (C) 1997, 1998, 1999, 2000 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 2, 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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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 26.5 C library
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//
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// Note: this is not a conforming implementation.
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#ifndef _CPP_CMATH
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#define _CPP_CMATH 1
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# include_next <math.h>
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# include_next <stdlib.h>
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#include <bits/c++config.h>
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namespace std {
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inline long
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abs(long __l) { return ::labs(__l); }
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inline ldiv_t
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div(long __a, long __b) { return ::ldiv(__a, __b); }
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// double
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inline double
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abs(double __x) { return ::fabs(__x); }
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double
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pow(double, int);
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// float
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inline float
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ceil(float __x) { return ::ceil(static_cast<double>(__x)); }
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inline float
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floor(float __x) { return ::floor(static_cast<double>(__x)); }
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inline float
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fmod(float __x, float __y)
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{ return ::fmod(static_cast<double>(__x), static_cast<double>(__y)); }
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inline float
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frexp(float __x, int* __p)
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{ return ::frexp(static_cast<double>(__x), __p); }
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inline float
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ldexp(float __x, int __i)
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{ return ::ldexp(static_cast<double>(__x), __i); }
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inline float
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pow(float __x, float __y)
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{ return ::pow(static_cast<double>(__x), static_cast<double>(__y)); }
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float
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pow(float, int);
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#if _GLIBCPP_HAVE_ABSF
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inline float
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abs(float __x) { return ::absf(__x); }
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#else
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inline float
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abs(float __x) { return ::fabs(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_ACOSF
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inline float
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acos(float __x) { return ::acosf(__x); }
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#else
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inline float
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acos(float __x) { return ::acos(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_ASINF
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inline float
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asin(float __x) { return ::asinf(__x); }
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#else
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inline float
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asin(float __x) { return ::asin(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_ATANF
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inline float
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atan(float __x) { return ::atanf(__x); }
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#else
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inline float
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atan(float __x) { return ::atan(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_ATAN2F
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inline float
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atan2(float __x, float __y) { return ::atan2f(__x, __y); }
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#else
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inline float
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atan2(float __x, float __y)
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{ return ::atan2(static_cast<double>(__x), static_cast<double>(__y)); }
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#endif
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#if _GLIBCPP_HAVE_TANF
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inline float
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tan(float __x) { return ::tanf(__x); }
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#else
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inline float
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tan(float __x) { return ::tan(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_SINHF
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inline float
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sinh(float __x) { return ::sinhf(__x); }
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#else
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inline float
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sinh(float __x) { return ::sinh(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_TANHF
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inline float
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tanh(float __x) { return ::tanhf(__x); }
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#else
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inline float
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tanh(float __x) { return ::tanh(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_COSHF
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inline float
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cosh(float __x) { return ::coshf(__x); }
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#else
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inline float
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cosh(float __x) { return ::cosh(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_EXPF
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inline float
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exp(float __x) { return ::expf(__x); }
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#else
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inline float
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exp(float __x) { return ::exp(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_LOGF
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inline float
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log(float __x) { return ::logf(__x); }
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#else
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inline float
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log(float __x) { return ::log(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_LOG10F
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inline float
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log10(float __x) { return ::log10f(__x); }
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#else
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inline float
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log10(float __x) { return ::log10(static_cast<double>(__x)); }
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#endif
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#if _GLIBCPP_HAVE_MODFF
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inline float
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modf(float __x, float* __p) { return ::modff(__x, __p); }
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#else
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inline float
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modf(float __x, float* __p)
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{
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double __tmp;
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double __res = ::modf(static_cast<double>(__x), &__tmp);
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*__p = static_cast<float> (__tmp);
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return __res;
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}
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#endif
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#if GLIBCPP_HAS_BUILTIN_SINF
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inline float
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sin(float __x) { return __builtin_sinf(__x); }
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#elif _GLIBCPP_HAVE_SINF
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inline float
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sin(float __x) { return ::sinf(__x); }
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#else
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inline float
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sin(float __x) { return ::sin(static_cast<double>(__x)); }
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#endif
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#if GLIBCPP_HAS_BUILTIN_COSF
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inline float
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cos(float __x) { return __builtin_cosf(__x); }
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#elif _GLIBCPP_HAVE_COSF
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inline float
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cos(float __x) { return ::cosf(__x); }
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#else
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inline float
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cos(float __x) { return ::cos(static_cast<double>(__x)); }
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#endif
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#if GLIBCPP_HAS_BUILTIN_FABSF
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inline float
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fabs(float __x) { return __builtin_fabsf(__x); }
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#elif _GLIBCPP_HAVE_FABSF
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inline float
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fabs(float __x) { return ::fabsf(__x); }
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#else
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inline float
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fabs(float __x) { return ::fabs(static_cast<double>(__x)); }
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#endif
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#if GLIBCPP_HAS_BUILTIN_SQRTF
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inline float
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sqrt(float __x) { return __builtin_sqrtf(__x); }
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#elif _GLIBCPP_HAVE_SQRTF
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inline float
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sqrt(float __x) { return ::sqrtf(__x); }
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#else
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inline float
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sqrt(float __x) { return ::fabs(static_cast<double>(__x)); }
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#endif
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// XXX long double
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long double
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pow(long double, int);
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} // std
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#endif // _CPP_CMATH
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