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- // -*- C++ -*- C forwarding header.
-
- // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
- // 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 2, 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.
-
- // You should have received a copy of the GNU General Public License along
- // with this library; see the file COPYING. If not, write to the Free
- // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- // USA.
-
- // As a special exception, you may use this file as part of a free software
- // library without restriction. Specifically, if other files instantiate
- // templates or use macros or inline functions from this file, or you compile
- // this file and link it with other files to produce an executable, this
- // file does not by itself cause the resulting executable to be covered by
- // the GNU General Public License. This exception does not however
- // invalidate any other reasons why the executable file might be covered by
- // the GNU General Public License.
-
- //
- // ISO C++ 14882: 26.5 C library
- //
-
- /** @file cmath
- * This is a Standard C++ Library file. You should @c #include this file
- * in your programs, rather than any of the "*.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.
- */
-
- #ifndef _GLIBCXX_CMATH
- #define _GLIBCXX_CMATH 1
-
- #pragma GCC system_header
-
- #include <bits/c++config.h>
- #include <bits/cpp_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
- {
- // Forward declaration of a helper function. This really should be
- // an `exported' forward declaration.
- template<typename _Tp> _Tp __cmath_power(_Tp, unsigned int);
-
- 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); }
-
- 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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type
- && __is_integer<_Up>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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); }
-
- 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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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); }
-
- template<typename _Tp>
- inline _Tp
- __pow_helper(_Tp __x, int __n)
- {
- return __n < 0
- ? _Tp(1)/__cmath_power(__x, -__n)
- : __cmath_power(__x, __n);
- }
-
- 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 __pow_helper(__x, __i); }
-
- inline float
- pow(float __x, int __n)
- { return __pow_helper(__x, __n); }
-
- inline long double
- pow(long double __x, int __n)
- { return __pow_helper(__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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_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 __enable_if<double, __is_integer<_Tp>::_M_type>::_M_type
- tanh(_Tp __x)
- { return __builtin_tanh(__x); }
- }
-
- #if _GLIBCXX_USE_C99_MATH
- #if !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC
- // These are possible macros imported from C99-land. For strict
- // conformance, remove possible C99-injected names from the global
- // namespace, and sequester them in the __gnu_cxx extension namespace.
- namespace __gnu_cxx
- {
- template<typename _Tp>
- int
- __capture_fpclassify(_Tp __f) { return fpclassify(__f); }
-
- template<typename _Tp>
- int
- __capture_isfinite(_Tp __f) { return isfinite(__f); }
-
- template<typename _Tp>
- int
- __capture_isinf(_Tp __f) { return isinf(__f); }
-
- template<typename _Tp>
- int
- __capture_isnan(_Tp __f) { return isnan(__f); }
-
- template<typename _Tp>
- int
- __capture_isnormal(_Tp __f) { return isnormal(__f); }
-
- template<typename _Tp>
- int
- __capture_signbit(_Tp __f) { return signbit(__f); }
-
- template<typename _Tp>
- int
- __capture_isgreater(_Tp __f1, _Tp __f2)
- { return isgreater(__f1, __f2); }
-
- template<typename _Tp>
- int
- __capture_isgreaterequal(_Tp __f1, _Tp __f2)
- { return isgreaterequal(__f1, __f2); }
-
- template<typename _Tp>
- int
- __capture_isless(_Tp __f1, _Tp __f2) { return isless(__f1, __f2); }
-
- template<typename _Tp>
- int
- __capture_islessequal(_Tp __f1, _Tp __f2)
- { return islessequal(__f1, __f2); }
-
- template<typename _Tp>
- int
- __capture_islessgreater(_Tp __f1, _Tp __f2)
- { return islessgreater(__f1, __f2); }
-
- template<typename _Tp>
- int
- __capture_isunordered(_Tp __f1, _Tp __f2)
- { return isunordered(__f1, __f2); }
- }
-
- // Only undefine the C99 FP macros, if actually captured for namespace movement
- #undef fpclassify
- #undef isfinite
- #undef isinf
- #undef isnan
- #undef isnormal
- #undef signbit
- #undef isgreater
- #undef isgreaterequal
- #undef isless
- #undef islessequal
- #undef islessgreater
- #undef isunordered
- #endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
- #endif
-
- #if _GLIBCXX_USE_C99_MATH
- #if !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC
- namespace __gnu_cxx
- {
- template<typename _Tp>
- int
- fpclassify(_Tp __f) { return __capture_fpclassify(__f); }
-
- template<typename _Tp>
- int
- isfinite(_Tp __f) { return __capture_isfinite(__f); }
-
- template<typename _Tp>
- int
- isinf(_Tp __f) { return __capture_isinf(__f); }
-
- template<typename _Tp>
- int
- isnan(_Tp __f) { return __capture_isnan(__f); }
-
- template<typename _Tp>
- int
- isnormal(_Tp __f) { return __capture_isnormal(__f); }
-
- template<typename _Tp>
- int
- signbit(_Tp __f) { return __capture_signbit(__f); }
-
- template<typename _Tp>
- int
- isgreater(_Tp __f1, _Tp __f2) { return __capture_isgreater(__f1, __f2); }
-
- template<typename _Tp>
- int
- isgreaterequal(_Tp __f1, _Tp __f2)
- { return __capture_isgreaterequal(__f1, __f2); }
-
- template<typename _Tp>
- int
- isless(_Tp __f1, _Tp __f2) { return __capture_isless(__f1, __f2); }
-
- template<typename _Tp>
- int
- islessequal(_Tp __f1, _Tp __f2)
- { return __capture_islessequal(__f1, __f2); }
-
- template<typename _Tp>
- int
- islessgreater(_Tp __f1, _Tp __f2)
- { return __capture_islessgreater(__f1, __f2); }
-
- template<typename _Tp>
- int
- isunordered(_Tp __f1, _Tp __f2)
- { return __capture_isunordered(__f1, __f2); }
- }
-
- namespace std
- {
- using __gnu_cxx::fpclassify;
- using __gnu_cxx::isfinite;
- using __gnu_cxx::isinf;
- using __gnu_cxx::isnan;
- using __gnu_cxx::isnormal;
- using __gnu_cxx::signbit;
- using __gnu_cxx::isgreater;
- using __gnu_cxx::isgreaterequal;
- using __gnu_cxx::isless;
- using __gnu_cxx::islessequal;
- using __gnu_cxx::islessgreater;
- using __gnu_cxx::isunordered;
- }
- #endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
- #endif
-
- #ifndef _GLIBCXX_EXPORT_TEMPLATE
- # include <bits/cmath.tcc>
- #endif
-
- #endif
-