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// -*- C++ -*- C math library. |
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// Copyright (C) 1997, 1998, 1999, 2000, 2001 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. |
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// 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. |
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// 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. |
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// |
// ISO C++ 14882: 26.5 C library |
// |
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#ifndef _CPP_CMATH |
#define _CPP_CMATH 1 |
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#include <bits/c++config.h> |
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#pragma GCC system_header |
#include_next <math.h> |
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// 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); |
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template<typename _Tp> |
inline _Tp |
__cmath_abs(_Tp __x) |
{ |
return __x < _Tp() ? -__x : __x; |
} |
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inline float |
abs(float __x) |
{ return __builtin_fabsf(__x); } |
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inline double |
abs(double __x) |
{ return __builtin_fabs(__x); } |
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inline long double |
abs(long double __x) |
{ return __builtin_fabsl(__x); } |
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#if _GLIBCPP_HAVE_ACOSF |
inline float |
acos(float __x) { return ::acosf(__x); } |
#else |
inline float |
acos(float __x) { return ::acos(static_cast<double>(__x)); } |
#endif |
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using ::acos; |
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#if _GLIBCPP_HAVE_ACOSL |
inline long double |
acos(long double __x) { return ::acosl(__x); } |
#else |
inline long double |
acos(long double __x) { return ::acos(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_ASINF |
inline float |
asin(float __x) { return ::asinf(__x); } |
#else |
inline float |
asin(float __x) { return ::asin(static_cast<double>(__x)); } |
#endif |
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using ::asin; |
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#if _GLIBCPP_HAVE_ASINL |
inline long double |
asin(long double __x) { return ::asinl(__x); } |
#else |
inline long double |
asin(long double __x) { return ::asin(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_ATANF |
inline float |
atan(float __x) { return ::atanf(__x); } |
#else |
inline float |
atan(float __x) { return ::atan(static_cast<double>(__x)); } |
#endif |
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using ::atan; |
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#if _GLIBCPP_HAVE_ATANL |
inline long double |
atan(long double __x) { return ::atanl(__x); } |
#else |
inline long double |
atan(long double __x) { return ::atan(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_ATAN2F |
inline float |
atan2(float __y, float __x) { return ::atan2f(__y, __x); } |
#else |
inline float |
atan2(float __y, float __x) |
{ return ::atan2(static_cast<double>(__y), static_cast<double>(__x)); } |
#endif |
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using ::atan2; |
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#if _GLIBCPP_HAVE_ATAN2L |
inline long double |
atan2(long double __y, long double __x) { return ::atan2l(__y, __x); } |
#else |
inline long double |
atan2(long double __y, long double __x) |
{ return ::atan2(static_cast<double>(__y), static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_CEILF |
inline float |
ceil(float __x) { return ::ceilf(__x); } |
#else |
inline float |
ceil(float __x) { return ::ceil(static_cast<double>(__x)); } |
#endif |
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using ::ceil; |
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#if _GLIBCPP_HAVE_CEILL |
inline long double |
ceil(long double __x) { return ::ceill(__x); } |
#else |
inline long double |
ceil(long double __x) { return ::ceil(static_cast<double>(__x)); } |
#endif |
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inline float |
cos(float __x) |
{ return __builtin_cosf(__x); } |
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using ::cos; |
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inline long double |
cos(long double __x) |
{ return __builtin_cosl(__x); } |
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#if _GLIBCPP_HAVE_COSHF |
inline float |
cosh(float __x) { return ::coshf(__x); } |
#else |
inline float |
cosh(float __x) { return ::cosh(static_cast<double>(__x)); } |
#endif |
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using ::cosh; |
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#if _GLIBCPP_HAVE_COSHL |
inline long double |
cosh(long double __x) { return ::coshl(__x); } |
#else |
inline long double |
cosh(long double __x) { return ::cosh(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_EXPF |
inline float |
exp(float __x) { return ::expf(__x); } |
#else |
inline float |
exp(float __x) { return ::exp(static_cast<double>(__x)); } |
#endif |
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using ::exp; |
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#if _GLIBCPP_HAVE_EXPL |
inline long double |
exp(long double __x) { return ::expl(__x); } |
#else |
inline long double |
exp(long double __x) { return ::exp(static_cast<double>(__x)); } |
#endif |
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inline float |
fabs(float __x) |
{ return __builtin_fabsf(__x); } |
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using ::fabs; |
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inline long double |
fabs(long double __x) |
{ return __builtin_fabsl(__x); } |
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#if _GLIBCPP_HAVE_FLOORF |
inline float |
floor(float __x) { return ::floorf(__x); } |
#else |
inline float |
floor(float __x) { return ::floor(static_cast<double>(__x)); } |
#endif |
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using ::floor; |
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#if _GLIBCPP_HAVE_FLOORL |
inline long double |
floor(long double __x) { return ::floorl(__x); } |
#else |
inline long double |
floor(long double __x) { return ::floor(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_FMODF |
inline float |
fmod(float __x, float __y) { return ::fmodf(__x, __y); } |
#else |
inline float |
fmod(float __x, float __y) |
{ return ::fmod(static_cast<double>(__x), static_cast<double>(__y)); } |
#endif |
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using ::fmod; |
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#if _GLIBCPP_HAVE_FMODL |
inline long double |
fmod(long double __x, long double __y) { return ::fmodl(__x, __y); } |
#else |
inline long double |
fmod(long double __x, long double __y) |
{ return ::fmod(static_cast<double>(__x), static_cast<double>(__y)); } |
#endif |
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#if _GLIBCPP_HAVE_FREXPF |
inline float |
frexp(float __x, int* __exp) { return ::frexpf(__x, __exp); } |
#else |
inline float |
frexp(float __x, int* __exp) { return ::frexp(__x, __exp); } |
#endif |
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using ::frexp; |
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#if _GLIBCPP_HAVE_FREXPL |
inline long double |
frexp(long double __x, int* __exp) { return ::frexpl(__x, __exp); } |
#else |
inline long double |
frexp(long double __x, int* __exp) |
{ return ::frexp(static_cast<double>(__x), __exp); } |
#endif |
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#if _GLIBCPP_HAVE_LDEXPF |
inline float |
ldexp(float __x, int __exp) { return ::ldexpf(__x, __exp); } |
#else |
inline float |
ldexp(float __x, int __exp) |
{ return ::ldexp(static_cast<double>(__x), __exp); } |
#endif |
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using ::ldexp; |
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#if _GLIBCPP_HAVE_LDEXPL |
inline long double |
ldexp(long double __x, int __exp) { return ::ldexpl(__x, __exp); } |
#else |
inline long double |
ldexp(long double __x, int __exp) |
{ return ::ldexp(static_cast<double>(__x), __exp); } |
#endif |
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#if _GLIBCPP_HAVE_LOGF |
inline float |
log(float __x) { return ::logf(__x); } |
#else |
inline float log(float __x) |
{ return ::log(static_cast<double>(__x)); } |
#endif |
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using ::log; |
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#if _GLIBCPP_HAVE_LOGL |
inline long double |
log(long double __x) { return ::logl(__x); } |
#else |
inline long double |
log(long double __x) { return ::log(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_LOG10F |
inline float |
log10(float __x) { return ::log10f(__x); } |
#else |
inline float |
log10(float __x) { return ::log10(static_cast<double>(__x)); } |
#endif |
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using ::log10; |
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#if _GLIBCPP_HAVE_LOG10L |
inline long double |
log10(long double __x) { return ::log10l(__x); } |
#else |
inline long double |
log10(long double __x) { return ::log10(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_MODFF |
inline float |
modf(float __x, float* __iptr) { return ::modff(__x, __iptr); } |
#else |
inline float |
modf(float __x, float* __iptr) |
{ |
double __tmp; |
double __res = ::modf(static_cast<double>(__x), &__tmp); |
*__iptr = static_cast<float>(__tmp); |
return __res; |
} |
#endif |
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using ::modf; |
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#if _GLIBCPP_HAVE_MODFL |
inline long double |
modf(long double __x, long double* __iptr) { return ::modfl(__x, __iptr); } |
#else |
inline long double |
modf(long double __x, long double* __iptr) |
{ |
double __tmp; |
double __res = ::modf(static_cast<double>(__x), &__tmp); |
* __iptr = static_cast<long double>(__tmp); |
return __res; |
} |
#endif |
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template<typename _Tp> |
inline _Tp |
__pow_helper(_Tp __x, int __n) |
{ |
return __n < 0 |
? _Tp(1)/__cmath_power(__x, -__n) |
: __cmath_power(__x, __n); |
} |
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#if _GLIBCPP_HAVE_POWF |
inline float |
pow(float __x, float __y) { return ::powf(__x, __y); } |
#else |
inline float |
pow(float __x, float __y) |
{ return ::pow(static_cast<double>(__x), static_cast<double>(__y)); } |
#endif |
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using ::pow; |
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#if _GLIBCPP_HAVE_POWL |
inline long double |
pow(long double __x, long double __y) { return ::powl(__x, __y); } |
#else |
inline long double |
pow(long double __x, long double __y) |
{ return ::pow(static_cast<double>(__x), static_cast<double>(__y)); } |
#endif |
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inline float |
pow(float __x, int __n) |
{ return __pow_helper(__x, __n); } |
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inline double |
pow(double __x, int __i) |
{ return __pow_helper(__x, __i); } |
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inline long double |
pow(long double __x, int __n) |
{ return __pow_helper(__x, __n); } |
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inline float |
sin(float __x) |
{ return __builtin_sinf(__x); } |
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using ::sin; |
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inline long double |
sin(long double __x) |
{ return __builtin_sinl(__x); } |
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#if _GLIBCPP_HAVE_SINHF |
inline float |
sinh(float __x) { return ::sinhf(__x); } |
#else |
inline float |
sinh(float __x) { return ::sinh(static_cast<double>(__x)); } |
#endif |
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using ::sinh; |
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#if _GLIBCPP_HAVE_SINHL |
inline long double |
sinh(long double __x) { return ::sinhl(__x); } |
#else |
inline long double |
sinh(long double __x) { return ::sinh(static_cast<double>(__x)); } |
#endif |
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inline float |
sqrt(float __x) |
{ return __builtin_sqrtf(__x); } |
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using ::sqrt; |
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inline long double |
sqrt(long double __x) |
{ return __builtin_sqrtl(__x); } |
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#if _GLIBCPP_HAVE_TANF |
inline float |
tan(float __x) { return ::tanf(__x); } |
#else |
inline float |
tan(float __x) { return ::tan(static_cast<double>(__x)); } |
#endif |
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using ::tan; |
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#if _GLIBCPP_HAVE_TANL |
inline long double |
tan(long double __x) { return ::tanl(__x); } |
#else |
inline long double |
tan(long double __x) { return ::tan(static_cast<double>(__x)); } |
#endif |
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#if _GLIBCPP_HAVE_TANHF |
inline float |
tanh(float __x) { return ::tanhf(__x); } |
#else |
inline float |
tanh(float __x) { return ::tanh(static_cast<double>(__x)); } |
#endif |
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using ::tanh; |
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#if _GLIBCPP_HAVE_TANHL |
inline long double |
tanh(long double __x) { return ::tanhl(__x); } |
#else |
inline long double |
tanh(long double __x) { return ::tanh(static_cast<double>(__x)); } |
#endif |
} |
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#if _GLIBCPP_USE_C99 |
// 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); } |
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template<typename _Tp> |
int |
__capture_isfinite(_Tp __f) { return isfinite(__f); } |
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template<typename _Tp> |
int |
__capture_isinf(_Tp __f) { return isinf(__f); } |
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template<typename _Tp> |
int |
__capture_isnan(_Tp __f) { return isnan(__f); } |
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template<typename _Tp> |
int |
__capture_isnormal(_Tp __f) { return isnormal(__f); } |
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template<typename _Tp> |
int |
__capture_signbit(_Tp __f) { return signbit(__f); } |
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template<typename _Tp> |
int |
__capture_isgreater(_Tp __f1, _Tp __f2) |
{ return isgreater(__f1, __f2); } |
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template<typename _Tp> |
int |
__capture_isgreaterequal(_Tp __f1, _Tp __f2) |
{ return isgreaterequal(__f1, __f2); } |
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template<typename _Tp> |
int |
__capture_isless(_Tp __f1, _Tp __f2) { return isless(__f1, __f2); } |
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template<typename _Tp> |
int |
__capture_islessequal(_Tp __f1, _Tp __f2) |
{ return islessequal(__f1, __f2); } |
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template<typename _Tp> |
int |
__capture_islessgreater(_Tp __f1, _Tp __f2) |
{ return islessgreater(__f1, __f2); } |
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template<typename _Tp> |
int |
__capture_isunordered(_Tp __f1, _Tp __f2) |
{ return isunordered(__f1, __f2); } |
} |
#endif |
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#undef fpclassify |
#undef isfinite |
#undef isinf |
#undef isnan |
#undef isnormal |
#undef signbit |
#undef isgreater |
#undef isgreaterequal |
#undef isless |
#undef islessequal |
#undef islessgreater |
#undef isunordered |
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#if _GLIBCPP_USE_C99 |
namespace __gnu_cxx |
{ |
template<typename _Tp> |
int |
fpclassify(_Tp __f) { return __capture_fpclassify(__f); } |
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template<typename _Tp> |
int |
isfinite(_Tp __f) { return __capture_isfinite(__f); } |
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template<typename _Tp> |
int |
isinf(_Tp __f) { return __capture_isinf(__f); } |
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template<typename _Tp> |
int |
isnan(_Tp __f) { return __capture_isnan(__f); } |
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template<typename _Tp> |
int |
isnormal(_Tp __f) { return __capture_isnormal(__f); } |
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template<typename _Tp> |
int |
signbit(_Tp __f) { return __capture_signbit(__f); } |
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template<typename _Tp> |
int |
isgreater(_Tp __f1, _Tp __f2) { return __capture_isgreater(__f1, __f2); } |
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template<typename _Tp> |
int |
isgreaterequal(_Tp __f1, _Tp __f2) |
{ return __capture_isgreaterequal(__f1, __f2); } |
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template<typename _Tp> |
int |
isless(_Tp __f1, _Tp __f2) { return __capture_isless(__f1, __f2); } |
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template<typename _Tp> |
int |
islessequal(_Tp __f1, _Tp __f2) |
{ return __capture_islessequal(__f1, __f2); } |
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template<typename _Tp> |
int |
islessgreater(_Tp __f1, _Tp __f2) |
{ return __capture_islessgreater(__f1, __f2); } |
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template<typename _Tp> |
int |
isunordered(_Tp __f1, _Tp __f2) |
{ return __capture_isunordered(__f1, __f2); } |
} |
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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 |
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#ifdef _GLIBCPP_NO_TEMPLATE_EXPORT |
# define export |
# include <bits/cmath.tcc> |
#endif |
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#endif |
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