--- /dev/null
+// -*- C++ -*- C forwarding header.
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2006, 2007, 2008, 2009, 2010, 2011
+// 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
+//
+
+#pragma GCC system_header
+
+#include <bits/c++config.h>
+#include <bits/cpp_type_traits.h>
+#include <ext/type_traits.h>
+#include <math.h>
+
+#ifndef _GLIBCXX_CMATH
+#define _GLIBCXX_CMATH 1
+
+// 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
+
+#if !defined(__CORRECT_ISO_CPP_MATH_H_PROTO1) \
+ && !defined(__CORRECT_ISO_CPP_MATH_H_PROTO2)
+ inline _GLIBCXX_CONSTEXPR double
+ abs(double __x)
+ { return __builtin_fabs(__x); }
+#endif
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ abs(float __x)
+ { return __builtin_fabsf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ abs(long double __x)
+ { return __builtin_fabsl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ abs(_Tp __x)
+ { return __builtin_fabs(__x); }
+
+ using ::acos;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ acos(float __x)
+ { return __builtin_acosf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ acos(long double __x)
+ { return __builtin_acosl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ acos(_Tp __x)
+ { return __builtin_acos(__x); }
+
+ using ::asin;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ asin(float __x)
+ { return __builtin_asinf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ asin(long double __x)
+ { return __builtin_asinl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ asin(_Tp __x)
+ { return __builtin_asin(__x); }
+
+ using ::atan;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ atan(float __x)
+ { return __builtin_atanf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ atan(long double __x)
+ { return __builtin_atanl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ atan(_Tp __x)
+ { return __builtin_atan(__x); }
+
+ using ::atan2;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ atan2(float __y, float __x)
+ { return __builtin_atan2f(__y, __x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ atan2(long double __y, long double __x)
+ { return __builtin_atan2l(__y, __x); }
+#endif
+
+ template<typename _Tp, typename _Up>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ atan2(_Tp __y, _Up __x)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return atan2(__type(__y), __type(__x));
+ }
+
+ using ::ceil;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ ceil(float __x)
+ { return __builtin_ceilf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ ceil(long double __x)
+ { return __builtin_ceill(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ ceil(_Tp __x)
+ { return __builtin_ceil(__x); }
+
+ using ::cos;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ cos(float __x)
+ { return __builtin_cosf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ cos(long double __x)
+ { return __builtin_cosl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ cos(_Tp __x)
+ { return __builtin_cos(__x); }
+
+ using ::cosh;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ cosh(float __x)
+ { return __builtin_coshf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ cosh(long double __x)
+ { return __builtin_coshl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ cosh(_Tp __x)
+ { return __builtin_cosh(__x); }
+
+ using ::exp;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ exp(float __x)
+ { return __builtin_expf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ exp(long double __x)
+ { return __builtin_expl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ exp(_Tp __x)
+ { return __builtin_exp(__x); }
+
+ using ::fabs;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ fabs(float __x)
+ { return __builtin_fabsf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ fabs(long double __x)
+ { return __builtin_fabsl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ fabs(_Tp __x)
+ { return __builtin_fabs(__x); }
+
+ using ::floor;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ floor(float __x)
+ { return __builtin_floorf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ floor(long double __x)
+ { return __builtin_floorl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ floor(_Tp __x)
+ { return __builtin_floor(__x); }
+
+ using ::fmod;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ fmod(float __x, float __y)
+ { return __builtin_fmodf(__x, __y); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ fmod(long double __x, long double __y)
+ { return __builtin_fmodl(__x, __y); }
+#endif
+
+ template<typename _Tp, typename _Up>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ fmod(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return fmod(__type(__x), __type(__y));
+ }
+
+ using ::frexp;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ 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); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ frexp(_Tp __x, int* __exp)
+ { return __builtin_frexp(__x, __exp); }
+
+ using ::ldexp;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ ldexp(float __x, int __exp)
+ { return __builtin_ldexpf(__x, __exp); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ ldexp(long double __x, int __exp)
+ { return __builtin_ldexpl(__x, __exp); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ ldexp(_Tp __x, int __exp)
+ { return __builtin_ldexp(__x, __exp); }
+
+ using ::log;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ log(float __x)
+ { return __builtin_logf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ log(long double __x)
+ { return __builtin_logl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ log(_Tp __x)
+ { return __builtin_log(__x); }
+
+ using ::log10;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ log10(float __x)
+ { return __builtin_log10f(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ log10(long double __x)
+ { return __builtin_log10l(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ log10(_Tp __x)
+ { return __builtin_log10(__x); }
+
+ using ::modf;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ 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); }
+#endif
+
+ using ::pow;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ pow(float __x, float __y)
+ { return __builtin_powf(__x, __y); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ pow(long double __x, long double __y)
+ { return __builtin_powl(__x, __y); }
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 550. What should the return type of pow(float,int) be?
+ 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); }
+#endif
+#endif
+
+ template<typename _Tp, typename _Up>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ pow(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return pow(__type(__x), __type(__y));
+ }
+
+ using ::sin;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ sin(float __x)
+ { return __builtin_sinf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ sin(long double __x)
+ { return __builtin_sinl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ sin(_Tp __x)
+ { return __builtin_sin(__x); }
+
+ using ::sinh;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ sinh(float __x)
+ { return __builtin_sinhf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ sinh(long double __x)
+ { return __builtin_sinhl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ sinh(_Tp __x)
+ { return __builtin_sinh(__x); }
+
+ using ::sqrt;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ sqrt(float __x)
+ { return __builtin_sqrtf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ sqrt(long double __x)
+ { return __builtin_sqrtl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ sqrt(_Tp __x)
+ { return __builtin_sqrt(__x); }
+
+ using ::tan;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ tan(float __x)
+ { return __builtin_tanf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ tan(long double __x)
+ { return __builtin_tanl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ tan(_Tp __x)
+ { return __builtin_tan(__x); }
+
+ using ::tanh;
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO1
+ inline _GLIBCXX_CONSTEXPR float
+ tanh(float __x)
+ { return __builtin_tanhf(__x); }
+
+ inline _GLIBCXX_CONSTEXPR long double
+ tanh(long double __x)
+ { return __builtin_tanhl(__x); }
+#endif
+
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR
+ 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
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ constexpr int
+ fpclassify(float __x)
+ { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
+ FP_SUBNORMAL, FP_ZERO, __x); }
+
+ constexpr int
+ fpclassify(double __x)
+ { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
+ FP_SUBNORMAL, FP_ZERO, __x); }
+
+ constexpr int
+ fpclassify(long double __x)
+ { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL,
+ FP_SUBNORMAL, FP_ZERO, __x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ int>::__type
+ fpclassify(_Tp __x)
+ { return __x != 0 ? FP_NORMAL : FP_ZERO; }
+
+ constexpr bool
+ isfinite(float __x)
+ { return __builtin_isfinite(__x); }
+
+ constexpr bool
+ isfinite(double __x)
+ { return __builtin_isfinite(__x); }
+
+ constexpr bool
+ isfinite(long double __x)
+ { return __builtin_isfinite(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ bool>::__type
+ isfinite(_Tp __x)
+ { return true; }
+
+ constexpr bool
+ isinf(float __x)
+ { return __builtin_isinf(__x); }
+
+ constexpr bool
+ isinf(double __x)
+ { return __builtin_isinf(__x); }
+
+ constexpr bool
+ isinf(long double __x)
+ { return __builtin_isinf(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ bool>::__type
+ isinf(_Tp __x)
+ { return false; }
+
+ constexpr bool
+ isnan(float __x)
+ { return __builtin_isnan(__x); }
+
+ constexpr bool
+ isnan(double __x)
+ { return __builtin_isnan(__x); }
+
+ constexpr bool
+ isnan(long double __x)
+ { return __builtin_isnan(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ bool>::__type
+ isnan(_Tp __x)
+ { return false; }
+
+ constexpr bool
+ isnormal(float __x)
+ { return __builtin_isnormal(__x); }
+
+ constexpr bool
+ isnormal(double __x)
+ { return __builtin_isnormal(__x); }
+
+ constexpr bool
+ isnormal(long double __x)
+ { return __builtin_isnormal(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ bool>::__type
+ isnormal(_Tp __x)
+ { return __x != 0 ? true : false; }
+
+ constexpr bool
+ signbit(float __x)
+ { return __builtin_signbit(__x); }
+
+ constexpr bool
+ signbit(double __x)
+ { return __builtin_signbit(__x); }
+
+ constexpr bool
+ signbit(long double __x)
+ { return __builtin_signbit(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ bool>::__type
+ signbit(_Tp __x)
+ { return __x < 0 ? true : false; }
+
+ constexpr bool
+ isgreater(float __x, float __y)
+ { return __builtin_isgreater(__x, __y); }
+
+ constexpr bool
+ isgreater(double __x, double __y)
+ { return __builtin_isgreater(__x, __y); }
+
+ constexpr bool
+ isgreater(long double __x, long double __y)
+ { return __builtin_isgreater(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ isgreater(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_isgreater(__type(__x), __type(__y));
+ }
+
+ constexpr bool
+ isgreaterequal(float __x, float __y)
+ { return __builtin_isgreaterequal(__x, __y); }
+
+ constexpr bool
+ isgreaterequal(double __x, double __y)
+ { return __builtin_isgreaterequal(__x, __y); }
+
+ constexpr bool
+ isgreaterequal(long double __x, long double __y)
+ { return __builtin_isgreaterequal(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ isgreaterequal(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_isgreaterequal(__type(__x), __type(__y));
+ }
+
+ constexpr bool
+ isless(float __x, float __y)
+ { return __builtin_isless(__x, __y); }
+
+ constexpr bool
+ isless(double __x, double __y)
+ { return __builtin_isless(__x, __y); }
+
+ constexpr bool
+ isless(long double __x, long double __y)
+ { return __builtin_isless(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ isless(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_isless(__type(__x), __type(__y));
+ }
+
+ constexpr bool
+ islessequal(float __x, float __y)
+ { return __builtin_islessequal(__x, __y); }
+
+ constexpr bool
+ islessequal(double __x, double __y)
+ { return __builtin_islessequal(__x, __y); }
+
+ constexpr bool
+ islessequal(long double __x, long double __y)
+ { return __builtin_islessequal(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ islessequal(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_islessequal(__type(__x), __type(__y));
+ }
+
+ constexpr bool
+ islessgreater(float __x, float __y)
+ { return __builtin_islessgreater(__x, __y); }
+
+ constexpr bool
+ islessgreater(double __x, double __y)
+ { return __builtin_islessgreater(__x, __y); }
+
+ constexpr bool
+ islessgreater(long double __x, long double __y)
+ { return __builtin_islessgreater(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ islessgreater(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_islessgreater(__type(__x), __type(__y));
+ }
+
+ constexpr bool
+ isunordered(float __x, float __y)
+ { return __builtin_isunordered(__x, __y); }
+
+ constexpr bool
+ isunordered(double __x, double __y)
+ { return __builtin_isunordered(__x, __y); }
+
+ constexpr bool
+ isunordered(long double __x, long double __y)
+ { return __builtin_isunordered(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename
+ __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value
+ && __is_arithmetic<_Up>::__value), bool>::__type
+ isunordered(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return __builtin_isunordered(__type(__x), __type(__y));
+ }
+
+#else
+
+ 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));
+ }
+
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
+#endif
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+
+#ifdef _GLIBCXX_USE_C99_MATH_TR1
+
+#undef acosh
+#undef acoshf
+#undef acoshl
+#undef asinh
+#undef asinhf
+#undef asinhl
+#undef atanh
+#undef atanhf
+#undef atanhl
+#undef cbrt
+#undef cbrtf
+#undef cbrtl
+#undef copysign
+#undef copysignf
+#undef copysignl
+#undef erf
+#undef erff
+#undef erfl
+#undef erfc
+#undef erfcf
+#undef erfcl
+#undef exp2
+#undef exp2f
+#undef exp2l
+#undef expm1
+#undef expm1f
+#undef expm1l
+#undef fdim
+#undef fdimf
+#undef fdiml
+#undef fma
+#undef fmaf
+#undef fmal
+#undef fmax
+#undef fmaxf
+#undef fmaxl
+#undef fmin
+#undef fminf
+#undef fminl
+#undef hypot
+#undef hypotf
+#undef hypotl
+#undef ilogb
+#undef ilogbf
+#undef ilogbl
+#undef lgamma
+#undef lgammaf
+#undef lgammal
+#undef llrint
+#undef llrintf
+#undef llrintl
+#undef llround
+#undef llroundf
+#undef llroundl
+#undef log1p
+#undef log1pf
+#undef log1pl
+#undef log2
+#undef log2f
+#undef log2l
+#undef logb
+#undef logbf
+#undef logbl
+#undef lrint
+#undef lrintf
+#undef lrintl
+#undef lround
+#undef lroundf
+#undef lroundl
+#undef nan
+#undef nanf
+#undef nanl
+#undef nearbyint
+#undef nearbyintf
+#undef nearbyintl
+#undef nextafter
+#undef nextafterf
+#undef nextafterl
+#undef nexttoward
+#undef nexttowardf
+#undef nexttowardl
+#undef remainder
+#undef remainderf
+#undef remainderl
+#undef remquo
+#undef remquof
+#undef remquol
+#undef rint
+#undef rintf
+#undef rintl
+#undef round
+#undef roundf
+#undef roundl
+#undef scalbln
+#undef scalblnf
+#undef scalblnl
+#undef scalbn
+#undef scalbnf
+#undef scalbnl
+#undef tgamma
+#undef tgammaf
+#undef tgammal
+#undef trunc
+#undef truncf
+#undef truncl
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // types
+ using ::double_t;
+ using ::float_t;
+
+ // functions
+ using ::acosh;
+ using ::acoshf;
+ using ::acoshl;
+
+ using ::asinh;
+ using ::asinhf;
+ using ::asinhl;
+
+ using ::atanh;
+ using ::atanhf;
+ using ::atanhl;
+
+ using ::cbrt;
+ using ::cbrtf;
+ using ::cbrtl;
+
+ using ::copysign;
+ using ::copysignf;
+ using ::copysignl;
+
+ using ::erf;
+ using ::erff;
+ using ::erfl;
+
+ using ::erfc;
+ using ::erfcf;
+ using ::erfcl;
+
+ using ::exp2;
+ using ::exp2f;
+ using ::exp2l;
+
+ using ::expm1;
+ using ::expm1f;
+ using ::expm1l;
+
+ using ::fdim;
+ using ::fdimf;
+ using ::fdiml;
+
+ using ::fma;
+ using ::fmaf;
+ using ::fmal;
+
+ using ::fmax;
+ using ::fmaxf;
+ using ::fmaxl;
+
+ using ::fmin;
+ using ::fminf;
+ using ::fminl;
+
+ using ::hypot;
+ using ::hypotf;
+ using ::hypotl;
+
+ using ::ilogb;
+ using ::ilogbf;
+ using ::ilogbl;
+
+ using ::lgamma;
+ using ::lgammaf;
+ using ::lgammal;
+
+ using ::llrint;
+ using ::llrintf;
+ using ::llrintl;
+
+ using ::llround;
+ using ::llroundf;
+ using ::llroundl;
+
+ using ::log1p;
+ using ::log1pf;
+ using ::log1pl;
+
+ using ::log2;
+ using ::log2f;
+ using ::log2l;
+
+ using ::logb;
+ using ::logbf;
+ using ::logbl;
+
+ using ::lrint;
+ using ::lrintf;
+ using ::lrintl;
+
+ using ::lround;
+ using ::lroundf;
+ using ::lroundl;
+
+ using ::nan;
+ using ::nanf;
+ using ::nanl;
+
+ using ::nearbyint;
+ using ::nearbyintf;
+ using ::nearbyintl;
+
+ using ::nextafter;
+ using ::nextafterf;
+ using ::nextafterl;
+
+ using ::nexttoward;
+ using ::nexttowardf;
+ using ::nexttowardl;
+
+ using ::remainder;
+ using ::remainderf;
+ using ::remainderl;
+
+ using ::remquo;
+ using ::remquof;
+ using ::remquol;
+
+ using ::rint;
+ using ::rintf;
+ using ::rintl;
+
+ using ::round;
+ using ::roundf;
+ using ::roundl;
+
+ using ::scalbln;
+ using ::scalblnf;
+ using ::scalblnl;
+
+ using ::scalbn;
+ using ::scalbnf;
+ using ::scalbnl;
+
+ using ::tgamma;
+ using ::tgammaf;
+ using ::tgammal;
+
+ using ::trunc;
+ using ::truncf;
+ using ::truncl;
+
+ /// Additional overloads.
+ constexpr float
+ acosh(float __x)
+ { return __builtin_acoshf(__x); }
+
+ constexpr long double
+ acosh(long double __x)
+ { return __builtin_acoshl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ acosh(_Tp __x)
+ { return __builtin_acosh(__x); }
+
+ constexpr float
+ asinh(float __x)
+ { return __builtin_asinhf(__x); }
+
+ constexpr long double
+ asinh(long double __x)
+ { return __builtin_asinhl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ asinh(_Tp __x)
+ { return __builtin_asinh(__x); }
+
+ constexpr float
+ atanh(float __x)
+ { return __builtin_atanhf(__x); }
+
+ constexpr long double
+ atanh(long double __x)
+ { return __builtin_atanhl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ atanh(_Tp __x)
+ { return __builtin_atanh(__x); }
+
+ constexpr float
+ cbrt(float __x)
+ { return __builtin_cbrtf(__x); }
+
+ constexpr long double
+ cbrt(long double __x)
+ { return __builtin_cbrtl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ cbrt(_Tp __x)
+ { return __builtin_cbrt(__x); }
+
+ constexpr float
+ copysign(float __x, float __y)
+ { return __builtin_copysignf(__x, __y); }
+
+ constexpr long double
+ copysign(long double __x, long double __y)
+ { return __builtin_copysignl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ copysign(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return copysign(__type(__x), __type(__y));
+ }
+
+ constexpr float
+ erf(float __x)
+ { return __builtin_erff(__x); }
+
+ constexpr long double
+ erf(long double __x)
+ { return __builtin_erfl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ erf(_Tp __x)
+ { return __builtin_erf(__x); }
+
+ constexpr float
+ erfc(float __x)
+ { return __builtin_erfcf(__x); }
+
+ constexpr long double
+ erfc(long double __x)
+ { return __builtin_erfcl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ erfc(_Tp __x)
+ { return __builtin_erfc(__x); }
+
+ constexpr float
+ exp2(float __x)
+ { return __builtin_exp2f(__x); }
+
+ constexpr long double
+ exp2(long double __x)
+ { return __builtin_exp2l(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ exp2(_Tp __x)
+ { return __builtin_exp2(__x); }
+
+ constexpr float
+ expm1(float __x)
+ { return __builtin_expm1f(__x); }
+
+ constexpr long double
+ expm1(long double __x)
+ { return __builtin_expm1l(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ expm1(_Tp __x)
+ { return __builtin_expm1(__x); }
+
+ constexpr float
+ fdim(float __x, float __y)
+ { return __builtin_fdimf(__x, __y); }
+
+ constexpr long double
+ fdim(long double __x, long double __y)
+ { return __builtin_fdiml(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ fdim(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return fdim(__type(__x), __type(__y));
+ }
+
+ constexpr float
+ fma(float __x, float __y, float __z)
+ { return __builtin_fmaf(__x, __y, __z); }
+
+ constexpr long double
+ fma(long double __x, long double __y, long double __z)
+ { return __builtin_fmal(__x, __y, __z); }
+
+ template<typename _Tp, typename _Up, typename _Vp>
+ constexpr typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type
+ fma(_Tp __x, _Up __y, _Vp __z)
+ {
+ typedef typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type __type;
+ return fma(__type(__x), __type(__y), __type(__z));
+ }
+
+ constexpr float
+ fmax(float __x, float __y)
+ { return __builtin_fmaxf(__x, __y); }
+
+ constexpr long double
+ fmax(long double __x, long double __y)
+ { return __builtin_fmaxl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ fmax(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return fmax(__type(__x), __type(__y));
+ }
+
+ constexpr float
+ fmin(float __x, float __y)
+ { return __builtin_fminf(__x, __y); }
+
+ constexpr long double
+ fmin(long double __x, long double __y)
+ { return __builtin_fminl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ fmin(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return fmin(__type(__x), __type(__y));
+ }
+
+ constexpr float
+ hypot(float __x, float __y)
+ { return __builtin_hypotf(__x, __y); }
+
+ constexpr long double
+ hypot(long double __x, long double __y)
+ { return __builtin_hypotl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ hypot(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return hypot(__type(__x), __type(__y));
+ }
+
+ constexpr int
+ ilogb(float __x)
+ { return __builtin_ilogbf(__x); }
+
+ constexpr int
+ ilogb(long double __x)
+ { return __builtin_ilogbl(__x); }
+
+ template<typename _Tp>
+ constexpr
+ typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ int>::__type
+ ilogb(_Tp __x)
+ { return __builtin_ilogb(__x); }
+
+ constexpr float
+ lgamma(float __x)
+ { return __builtin_lgammaf(__x); }
+
+ constexpr long double
+ lgamma(long double __x)
+ { return __builtin_lgammal(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ lgamma(_Tp __x)
+ { return __builtin_lgamma(__x); }
+
+ constexpr long long
+ llrint(float __x)
+ { return __builtin_llrintf(__x); }
+
+ constexpr long long
+ llrint(long double __x)
+ { return __builtin_llrintl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long long>::__type
+ llrint(_Tp __x)
+ { return __builtin_llrint(__x); }
+
+ constexpr long long
+ llround(float __x)
+ { return __builtin_llroundf(__x); }
+
+ constexpr long long
+ llround(long double __x)
+ { return __builtin_llroundl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long long>::__type
+ llround(_Tp __x)
+ { return __builtin_llround(__x); }
+
+ constexpr float
+ log1p(float __x)
+ { return __builtin_log1pf(__x); }
+
+ constexpr long double
+ log1p(long double __x)
+ { return __builtin_log1pl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ log1p(_Tp __x)
+ { return __builtin_log1p(__x); }
+
+ // DR 568.
+ constexpr float
+ log2(float __x)
+ { return __builtin_log2f(__x); }
+
+ constexpr long double
+ log2(long double __x)
+ { return __builtin_log2l(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ log2(_Tp __x)
+ { return __builtin_log2(__x); }
+
+ constexpr float
+ logb(float __x)
+ { return __builtin_logbf(__x); }
+
+ constexpr long double
+ logb(long double __x)
+ { return __builtin_logbl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ logb(_Tp __x)
+ { return __builtin_logb(__x); }
+
+ constexpr long
+ lrint(float __x)
+ { return __builtin_lrintf(__x); }
+
+ constexpr long
+ lrint(long double __x)
+ { return __builtin_lrintl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long>::__type
+ lrint(_Tp __x)
+ { return __builtin_lrint(__x); }
+
+ constexpr long
+ lround(float __x)
+ { return __builtin_lroundf(__x); }
+
+ constexpr long
+ lround(long double __x)
+ { return __builtin_lroundl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long>::__type
+ lround(_Tp __x)
+ { return __builtin_lround(__x); }
+
+ constexpr float
+ nearbyint(float __x)
+ { return __builtin_nearbyintf(__x); }
+
+ constexpr long double
+ nearbyint(long double __x)
+ { return __builtin_nearbyintl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ nearbyint(_Tp __x)
+ { return __builtin_nearbyint(__x); }
+
+ constexpr float
+ nextafter(float __x, float __y)
+ { return __builtin_nextafterf(__x, __y); }
+
+ constexpr long double
+ nextafter(long double __x, long double __y)
+ { return __builtin_nextafterl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ nextafter(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return nextafter(__type(__x), __type(__y));
+ }
+
+ constexpr float
+ nexttoward(float __x, long double __y)
+ { return __builtin_nexttowardf(__x, __y); }
+
+ constexpr long double
+ nexttoward(long double __x, long double __y)
+ { return __builtin_nexttowardl(__x, __y); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ nexttoward(_Tp __x, long double __y)
+ { return __builtin_nexttoward(__x, __y); }
+
+ constexpr float
+ remainder(float __x, float __y)
+ { return __builtin_remainderf(__x, __y); }
+
+ constexpr long double
+ remainder(long double __x, long double __y)
+ { return __builtin_remainderl(__x, __y); }
+
+ template<typename _Tp, typename _Up>
+ constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ remainder(_Tp __x, _Up __y)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return remainder(__type(__x), __type(__y));
+ }
+
+ inline float
+ remquo(float __x, float __y, int* __pquo)
+ { return __builtin_remquof(__x, __y, __pquo); }
+
+ inline long double
+ remquo(long double __x, long double __y, int* __pquo)
+ { return __builtin_remquol(__x, __y, __pquo); }
+
+ template<typename _Tp, typename _Up>
+ inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
+ remquo(_Tp __x, _Up __y, int* __pquo)
+ {
+ typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
+ return remquo(__type(__x), __type(__y), __pquo);
+ }
+
+ constexpr float
+ rint(float __x)
+ { return __builtin_rintf(__x); }
+
+ constexpr long double
+ rint(long double __x)
+ { return __builtin_rintl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ rint(_Tp __x)
+ { return __builtin_rint(__x); }
+
+ constexpr float
+ round(float __x)
+ { return __builtin_roundf(__x); }
+
+ constexpr long double
+ round(long double __x)
+ { return __builtin_roundl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ round(_Tp __x)
+ { return __builtin_round(__x); }
+
+ constexpr float
+ scalbln(float __x, long __ex)
+ { return __builtin_scalblnf(__x, __ex); }
+
+ constexpr long double
+ scalbln(long double __x, long __ex)
+ { return __builtin_scalblnl(__x, __ex); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ scalbln(_Tp __x, long __ex)
+ { return __builtin_scalbln(__x, __ex); }
+
+ constexpr float
+ scalbn(float __x, int __ex)
+ { return __builtin_scalbnf(__x, __ex); }
+
+ constexpr long double
+ scalbn(long double __x, int __ex)
+ { return __builtin_scalbnl(__x, __ex); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ scalbn(_Tp __x, int __ex)
+ { return __builtin_scalbn(__x, __ex); }
+
+ constexpr float
+ tgamma(float __x)
+ { return __builtin_tgammaf(__x); }
+
+ constexpr long double
+ tgamma(long double __x)
+ { return __builtin_tgammal(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ tgamma(_Tp __x)
+ { return __builtin_tgamma(__x); }
+
+ constexpr float
+ trunc(float __x)
+ { return __builtin_truncf(__x); }
+
+ constexpr long double
+ trunc(long double __x)
+ { return __builtin_truncl(__x); }
+
+ template<typename _Tp>
+ constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
+ trunc(_Tp __x)
+ { return __builtin_trunc(__x); }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif // _GLIBCXX_USE_C99_MATH_TR1
+
+#endif // __GXX_EXPERIMENTAL_CXX0X__
+
+#endif
projects / cross.git / blobdiff