120 lines
2.7 KiB
C++
120 lines
2.7 KiB
C++
// -*- C++ -*- forwarding header.
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// Copyright (C) 2000-2018 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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//
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// ISO C++ 14882: 26.5 C library
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//
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#ifndef _GLIBCXX_CMATH
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#define _GLIBCXX_CMATH 1
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#pragma GCC system_header
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#include <bits/c++config.h>
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#include_next <math.h>
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// Get rid of those macros defined in <math.h> in lieu of real functions.
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#undef abs
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#undef div
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#undef acos
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#undef asin
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#undef atan
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#undef atan2
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#undef ceil
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#undef cos
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#undef cosh
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#undef exp
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#undef fabs
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#undef floor
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#undef fmod
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#undef frexp
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#undef ldexp
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#undef log
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#undef log10
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#undef modf
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#undef pow
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#undef sin
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#undef sinh
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#undef sqrt
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#undef tan
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#undef tanh
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#undef fpclassify
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#undef isfinite
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#undef isinf
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#undef isnan
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#undef isnormal
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#undef signbit
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#undef isgreater
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#undef isgreaterequal
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#undef isless
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#undef islessequal
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#undef islessgreater
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#undef isunordered
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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inline double
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abs(double __x)
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{ return __builtin_fabs(__x); }
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inline float
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abs(float __x)
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{ return __builtin_fabsf(__x); }
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inline long double
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abs(long double __x)
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{ return __builtin_fabsl(__x); }
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#if _GLIBCXX_HAVE_MODFF
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inline float
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modf(float __x, float* __iptr) { return modff(__x, __iptr); }
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#else
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inline float
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modf(float __x, float* __iptr)
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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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*__iptr = static_cast<float>(__tmp);
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return __res;
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}
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#endif
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#if _GLIBCXX_HAVE_MODFL
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inline long double
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modf(long double __x, long double* __iptr) { return modfl(__x, __iptr); }
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#else
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inline long double
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modf(long double __x, long double* __iptr)
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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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* __iptr = static_cast<long double>(__tmp);
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return __res;
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}
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#endif
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}
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#endif
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