Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
[dragonfly.git] / contrib / gcc-3.4 / libstdc++-v3 / include / c / std_cmath.h
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1// -*- C++ -*- forwarding header.
2
3// Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING. If not, write to the Free
18// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction. Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License. This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30//
31// ISO C++ 14882: 26.5 C library
32//
33
34#ifndef _GLIBCXX_CMATH
35#define _GLIBCXX_CMATH 1
36
37#pragma GCC system_header
38
39#include <bits/c++config.h>
40
41#include_next <math.h>
42
43// Get rid of those macros defined in <math.h> in lieu of real functions.
44#undef abs
45#undef div
46#undef acos
47#undef asin
48#undef atan
49#undef atan2
50#undef ceil
51#undef cos
52#undef cosh
53#undef exp
54#undef fabs
55#undef floor
56#undef fmod
57#undef frexp
58#undef ldexp
59#undef log
60#undef log10
61#undef modf
62#undef pow
63#undef sin
64#undef sinh
65#undef sqrt
66#undef tan
67#undef tanh
68
69#undef fpclassify
70#undef isfinite
71#undef isinf
72#undef isnan
73#undef isnormal
74#undef signbit
75#undef isgreater
76#undef isgreaterequal
77#undef isless
78#undef islessequal
79#undef islessgreater
80#undef isunordered
81
82namespace std
83{
84 inline double
85 abs(double __x)
86 { return __builtin_fabs(__x); }
87
88 inline float
89 abs(float __x)
90 { return __builtin_fabsf(__x); }
91
92 inline long double
93 abs(long double __x)
94 { return __builtin_fabsl(__x); }
95
96#if _GLIBCXX_HAVE_MODFF
97 inline float
98 modf(float __x, float* __iptr) { return modff(__x, __iptr); }
99#else
100 inline float
101 modf(float __x, float* __iptr)
102 {
103 double __tmp;
104 double __res = modf(static_cast<double>(__x), &__tmp);
105 *__iptr = static_cast<float>(__tmp);
106 return __res;
107 }
108#endif
109
110#if _GLIBCXX_HAVE_MODFL
111 inline long double
112 modf(long double __x, long double* __iptr) { return modfl(__x, __iptr); }
113#else
114 inline long double
115 modf(long double __x, long double* __iptr)
116 {
117 double __tmp;
118 double __res = modf(static_cast<double>(__x), &__tmp);
119 * __iptr = static_cast<long double>(__tmp);
120 return __res;
121 }
122#endif
123}
124#endif