592 lines
14 KiB
C++
592 lines
14 KiB
C++
// -*- C++ -*- C forwarding header.
|
|
|
|
// Copyright (C) 1997-2017 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 include/cmath
|
|
* This is a Standard C++ Library file. You should @c #include this file
|
|
* in your programs, rather than any of the @a *.h implementation files.
|
|
*
|
|
* This is the C++ version of the Standard C Library header @c math.h,
|
|
* and its contents are (mostly) the same as that header, but are all
|
|
* contained in the namespace @c std (except for names which are defined
|
|
* as macros in C).
|
|
*/
|
|
|
|
//
|
|
// ISO C++ 14882: 26.5 C library
|
|
//
|
|
|
|
#ifndef _GLIBCXX_CMATH
|
|
#define _GLIBCXX_CMATH 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
#include <bits/c++config.h>
|
|
#include <bits/cpp_type_traits.h>
|
|
#include <ext/type_traits.h>
|
|
|
|
#include <math.h>
|
|
|
|
// Get rid of those macros defined in <math.h> in lieu of real functions.
|
|
#undef abs
|
|
#undef div
|
|
#undef acos
|
|
#undef asin
|
|
#undef atan
|
|
#undef atan2
|
|
#undef ceil
|
|
#undef cos
|
|
#undef cosh
|
|
#undef exp
|
|
#undef fabs
|
|
#undef floor
|
|
#undef fmod
|
|
#undef frexp
|
|
#undef ldexp
|
|
#undef log
|
|
#undef log10
|
|
#undef modf
|
|
#undef pow
|
|
#undef sin
|
|
#undef sinh
|
|
#undef sqrt
|
|
#undef tan
|
|
#undef tanh
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
inline double
|
|
abs(double __x)
|
|
{ return __builtin_fabs(__x); }
|
|
|
|
inline float
|
|
abs(float __x)
|
|
{ return __builtin_fabsf(__x); }
|
|
|
|
inline long double
|
|
abs(long double __x)
|
|
{ return __builtin_fabsl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
abs(_Tp __x)
|
|
{ return __builtin_fabs(__x); }
|
|
|
|
using ::acos;
|
|
|
|
inline float
|
|
acos(float __x)
|
|
{ return __builtin_acosf(__x); }
|
|
|
|
inline long double
|
|
acos(long double __x)
|
|
{ return __builtin_acosl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
acos(_Tp __x)
|
|
{ return __builtin_acos(__x); }
|
|
|
|
using ::asin;
|
|
|
|
inline float
|
|
asin(float __x)
|
|
{ return __builtin_asinf(__x); }
|
|
|
|
inline long double
|
|
asin(long double __x)
|
|
{ return __builtin_asinl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
asin(_Tp __x)
|
|
{ return __builtin_asin(__x); }
|
|
|
|
using ::atan;
|
|
|
|
inline float
|
|
atan(float __x)
|
|
{ return __builtin_atanf(__x); }
|
|
|
|
inline long double
|
|
atan(long double __x)
|
|
{ return __builtin_atanl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
atan(_Tp __x)
|
|
{ return __builtin_atan(__x); }
|
|
|
|
using ::atan2;
|
|
|
|
inline float
|
|
atan2(float __y, float __x)
|
|
{ return __builtin_atan2f(__y, __x); }
|
|
|
|
inline long double
|
|
atan2(long double __y, long double __x)
|
|
{ return __builtin_atan2l(__y, __x); }
|
|
|
|
template<typename _Tp, typename _Up>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value
|
|
&& __is_integer<_Up>::__value,
|
|
double>::__type
|
|
atan2(_Tp __y, _Up __x)
|
|
{ return __builtin_atan2(__y, __x); }
|
|
|
|
using ::ceil;
|
|
|
|
inline float
|
|
ceil(float __x)
|
|
{ return __builtin_ceilf(__x); }
|
|
|
|
inline long double
|
|
ceil(long double __x)
|
|
{ return __builtin_ceill(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
ceil(_Tp __x)
|
|
{ return __builtin_ceil(__x); }
|
|
|
|
using ::cos;
|
|
|
|
inline float
|
|
cos(float __x)
|
|
{ return __builtin_cosf(__x); }
|
|
|
|
inline long double
|
|
cos(long double __x)
|
|
{ return __builtin_cosl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
cos(_Tp __x)
|
|
{ return __builtin_cos(__x); }
|
|
|
|
using ::cosh;
|
|
|
|
inline float
|
|
cosh(float __x)
|
|
{ return __builtin_coshf(__x); }
|
|
|
|
inline long double
|
|
cosh(long double __x)
|
|
{ return __builtin_coshl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
cosh(_Tp __x)
|
|
{ return __builtin_cosh(__x); }
|
|
|
|
using ::exp;
|
|
|
|
inline float
|
|
exp(float __x)
|
|
{ return __builtin_expf(__x); }
|
|
|
|
inline long double
|
|
exp(long double __x)
|
|
{ return __builtin_expl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
exp(_Tp __x)
|
|
{ return __builtin_exp(__x); }
|
|
|
|
using ::fabs;
|
|
|
|
inline float
|
|
fabs(float __x)
|
|
{ return __builtin_fabsf(__x); }
|
|
|
|
inline long double
|
|
fabs(long double __x)
|
|
{ return __builtin_fabsl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
fabs(_Tp __x)
|
|
{ return __builtin_fabs(__x); }
|
|
|
|
using ::floor;
|
|
|
|
inline float
|
|
floor(float __x)
|
|
{ return __builtin_floorf(__x); }
|
|
|
|
inline long double
|
|
floor(long double __x)
|
|
{ return __builtin_floorl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
floor(_Tp __x)
|
|
{ return __builtin_floor(__x); }
|
|
|
|
using ::fmod;
|
|
|
|
inline float
|
|
fmod(float __x, float __y)
|
|
{ return __builtin_fmodf(__x, __y); }
|
|
|
|
inline long double
|
|
fmod(long double __x, long double __y)
|
|
{ return __builtin_fmodl(__x, __y); }
|
|
|
|
template<typename _Tp, typename _Up>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value
|
|
&& __is_integer<_Up>::__value,
|
|
double>::__type
|
|
fmod(_Tp __x, _Up __y)
|
|
{ return __builtin_fmod(__x, __y); }
|
|
|
|
using ::frexp;
|
|
|
|
inline float
|
|
frexp(float __x, int* __exp)
|
|
{ return __builtin_frexpf(__x, __exp); }
|
|
|
|
inline long double
|
|
frexp(long double __x, int* __exp)
|
|
{ return __builtin_frexpl(__x, __exp); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
frexp(_Tp __x, int* __exp)
|
|
{ return __builtin_frexp(__x, __exp); }
|
|
|
|
using ::ldexp;
|
|
|
|
inline float
|
|
ldexp(float __x, int __exp)
|
|
{ return __builtin_ldexpf(__x, __exp); }
|
|
|
|
inline long double
|
|
ldexp(long double __x, int __exp)
|
|
{ return __builtin_ldexpl(__x, __exp); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
ldexp(_Tp __x, int __exp)
|
|
{ return __builtin_ldexp(__x, __exp); }
|
|
|
|
using ::log;
|
|
|
|
inline float
|
|
log(float __x)
|
|
{ return __builtin_logf(__x); }
|
|
|
|
inline long double
|
|
log(long double __x)
|
|
{ return __builtin_logl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
log(_Tp __x)
|
|
{ return __builtin_log(__x); }
|
|
|
|
using ::log10;
|
|
|
|
inline float
|
|
log10(float __x)
|
|
{ return __builtin_log10f(__x); }
|
|
|
|
inline long double
|
|
log10(long double __x)
|
|
{ return __builtin_log10l(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
log10(_Tp __x)
|
|
{ return __builtin_log10(__x); }
|
|
|
|
using ::modf;
|
|
|
|
inline float
|
|
modf(float __x, float* __iptr)
|
|
{ return __builtin_modff(__x, __iptr); }
|
|
|
|
inline long double
|
|
modf(long double __x, long double* __iptr)
|
|
{ return __builtin_modfl(__x, __iptr); }
|
|
|
|
using ::pow;
|
|
|
|
inline float
|
|
pow(float __x, float __y)
|
|
{ return __builtin_powf(__x, __y); }
|
|
|
|
inline long double
|
|
pow(long double __x, long double __y)
|
|
{ return __builtin_powl(__x, __y); }
|
|
|
|
inline double
|
|
pow(double __x, int __i)
|
|
{ return __builtin_powi(__x, __i); }
|
|
|
|
inline float
|
|
pow(float __x, int __n)
|
|
{ return __builtin_powif(__x, __n); }
|
|
|
|
inline long double
|
|
pow(long double __x, int __n)
|
|
{ return __builtin_powil(__x, __n); }
|
|
|
|
using ::sin;
|
|
|
|
inline float
|
|
sin(float __x)
|
|
{ return __builtin_sinf(__x); }
|
|
|
|
inline long double
|
|
sin(long double __x)
|
|
{ return __builtin_sinl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
sin(_Tp __x)
|
|
{ return __builtin_sin(__x); }
|
|
|
|
using ::sinh;
|
|
|
|
inline float
|
|
sinh(float __x)
|
|
{ return __builtin_sinhf(__x); }
|
|
|
|
inline long double
|
|
sinh(long double __x)
|
|
{ return __builtin_sinhl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
sinh(_Tp __x)
|
|
{ return __builtin_sinh(__x); }
|
|
|
|
using ::sqrt;
|
|
|
|
inline float
|
|
sqrt(float __x)
|
|
{ return __builtin_sqrtf(__x); }
|
|
|
|
inline long double
|
|
sqrt(long double __x)
|
|
{ return __builtin_sqrtl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
sqrt(_Tp __x)
|
|
{ return __builtin_sqrt(__x); }
|
|
|
|
using ::tan;
|
|
|
|
inline float
|
|
tan(float __x)
|
|
{ return __builtin_tanf(__x); }
|
|
|
|
inline long double
|
|
tan(long double __x)
|
|
{ return __builtin_tanl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
tan(_Tp __x)
|
|
{ return __builtin_tan(__x); }
|
|
|
|
using ::tanh;
|
|
|
|
inline float
|
|
tanh(float __x)
|
|
{ return __builtin_tanhf(__x); }
|
|
|
|
inline long double
|
|
tanh(long double __x)
|
|
{ return __builtin_tanhl(__x); }
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
|
|
double>::__type
|
|
tanh(_Tp __x)
|
|
{ return __builtin_tanh(__x); }
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#if _GLIBCXX_USE_C99_MATH
|
|
#if !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC
|
|
|
|
// These are possible macros imported from C99-land.
|
|
#undef fpclassify
|
|
#undef isfinite
|
|
#undef isinf
|
|
#undef isnan
|
|
#undef isnormal
|
|
#undef signbit
|
|
#undef isgreater
|
|
#undef isgreaterequal
|
|
#undef isless
|
|
#undef islessequal
|
|
#undef islessgreater
|
|
#undef isunordered
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
fpclassify(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
|
|
FP_SUBNORMAL, FP_ZERO, __type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isfinite(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isfinite(__type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isinf(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isinf(__type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isnan(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isnan(__type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isnormal(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isnormal(__type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
signbit(_Tp __f)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_signbit(__type(__f));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isgreater(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isgreater(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isgreaterequal(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isgreaterequal(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isless(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isless(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
islessequal(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_islessequal(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
islessgreater(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_islessgreater(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value,
|
|
int>::__type
|
|
isunordered(_Tp __f1, _Tp __f2)
|
|
{
|
|
typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
|
|
return __builtin_isunordered(__type(__f1), __type(__f2));
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace std
|
|
|
|
#endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
|
|
#endif
|
|
|
|
#endif
|