// TR1 cmath -*- C++ -*-
-// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
-// Free Software Foundation, Inc.
+// Copyright (C) 2006-2022 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
#pragma GCC system_header
+#include <bits/requires_hosted.h> // TR1
+
#include <cmath>
#ifdef _GLIBCXX_USE_C99_MATH_TR1
namespace std _GLIBCXX_VISIBILITY(default)
{
-namespace tr1
-{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace tr1
+{
#if _GLIBCXX_USE_C99_MATH_TR1
+ // Using declarations to bring names from libc's <math.h> into std::tr1.
+
// types
using ::double_t;
using ::float_t;
#if _GLIBCXX_USE_C99_MATH_TR1
- /// Additional overloads [8.16.4].
+ /** Additional overloads [8.16.4].
+ * @{
+ */
+
+ // For functions defined in C++03 the additional overloads are already
+ // declared in <cmath> so we can just re-declare them in std::tr1.
+
using std::acos;
+ using std::asin;
+ using std::atan;
+ using std::atan2;
+ using std::ceil;
+ using std::cos;
+ using std::cosh;
+ using std::exp;
+ using std::floor;
+ using std::fmod;
+ using std::frexp;
+ using std::ldexp;
+ using std::log;
+ using std::log10;
+ using std::sin;
+ using std::sinh;
+ using std::sqrt;
+ using std::tan;
+ using std::tanh;
+#if __cplusplus >= 201103L
+
+ // Since C++11, <cmath> defines additional overloads for these functions
+ // in namespace std.
+
+ using std::acosh;
+ using std::asinh;
+ using std::atanh;
+ using std::cbrt;
+ using std::copysign;
+ using std::erf;
+ using std::erfc;
+ using std::exp2;
+ using std::expm1;
+ using std::fdim;
+ using std::fma;
+ using std::fmax;
+ using std::fmin;
+ using std::hypot;
+ using std::ilogb;
+ using std::lgamma;
+ using std::llrint;
+ using std::llround;
+ using std::log1p;
+ using std::log2;
+ using std::logb;
+ using std::lrint;
+ using std::lround;
+ using std::nan;
+ using std::nearbyint;
+ using std::nextafter;
+ using std::nexttoward;
+ using std::remainder;
+ using std::remquo;
+ using std::rint;
+ using std::round;
+ using std::scalbln;
+ using std::scalbn;
+ using std::tgamma;
+ using std::trunc;
+
+#else // __cplusplus < 201103L
+
+ // In C++03 we need to provide the additional overloads.
+
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
acosh(float __x)
{ return __builtin_acoshf(__x); }
inline long double
acosh(long double __x)
{ return __builtin_acoshl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
acosh(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return acosh(__type(__x));
- }
-
- using std::asin;
+ { return __builtin_acosh(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
asinh(float __x)
{ return __builtin_asinhf(__x); }
inline long double
asinh(long double __x)
{ return __builtin_asinhl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
asinh(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return asinh(__type(__x));
- }
-
- using std::atan;
- using std::atan2;
+ { return __builtin_asinh(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
atanh(float __x)
{ return __builtin_atanhf(__x); }
inline long double
atanh(long double __x)
{ return __builtin_atanhl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
atanh(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return atanh(__type(__x));
- }
+ { return __builtin_atanh(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
cbrt(float __x)
{ return __builtin_cbrtf(__x); }
inline long double
cbrt(long double __x)
{ return __builtin_cbrtl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
cbrt(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return cbrt(__type(__x));
- }
-
- using std::ceil;
+ { return __builtin_cbrt(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
copysign(float __x, float __y)
{ return __builtin_copysignf(__x, __y); }
inline long double
copysign(long double __x, long double __y)
{ return __builtin_copysignl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return copysign(__type(__x), __type(__y));
}
- using std::cos;
- using std::cosh;
-
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
erf(float __x)
{ return __builtin_erff(__x); }
inline long double
erf(long double __x)
{ return __builtin_erfl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
erf(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return erf(__type(__x));
- }
+ { return __builtin_erf(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
erfc(float __x)
{ return __builtin_erfcf(__x); }
inline long double
erfc(long double __x)
{ return __builtin_erfcl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
erfc(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return erfc(__type(__x));
- }
-
- using std::exp;
+ { return __builtin_erfc(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
exp2(float __x)
{ return __builtin_exp2f(__x); }
inline long double
exp2(long double __x)
{ return __builtin_exp2l(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
exp2(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return exp2(__type(__x));
- }
+ { return __builtin_exp2(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
expm1(float __x)
{ return __builtin_expm1f(__x); }
inline long double
expm1(long double __x)
{ return __builtin_expm1l(__x); }
-
- template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
- expm1(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return expm1(__type(__x));
- }
-
- // Note: we deal with fabs in a special way, because an using std::fabs
- // would bring in also the overloads for complex types, which in C++0x
- // mode have a different return type.
- using ::fabs;
-
- inline float
- fabs(float __x)
- { return __builtin_fabsf(__x); }
-
- inline long double
- fabs(long double __x)
- { return __builtin_fabsl(__x); }
+#endif
template<typename _Tp>
inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
double>::__type
- fabs(_Tp __x)
- { return __builtin_fabs(__x); }
+ expm1(_Tp __x)
+ { return __builtin_expm1(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
fdim(float __x, float __y)
{ return __builtin_fdimf(__x, __y); }
inline long double
fdim(long double __x, long double __y)
{ return __builtin_fdiml(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return fdim(__type(__x), __type(__y));
}
- using std::floor;
-
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
fma(float __x, float __y, float __z)
{ return __builtin_fmaf(__x, __y, __z); }
inline long double
fma(long double __x, long double __y, long double __z)
{ return __builtin_fmal(__x, __y, __z); }
+#endif
template<typename _Tp, typename _Up, typename _Vp>
inline typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type
return fma(__type(__x), __type(__y), __type(__z));
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
fmax(float __x, float __y)
{ return __builtin_fmaxf(__x, __y); }
inline long double
fmax(long double __x, long double __y)
{ return __builtin_fmaxl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return fmax(__type(__x), __type(__y));
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
fmin(float __x, float __y)
{ return __builtin_fminf(__x, __y); }
inline long double
fmin(long double __x, long double __y)
{ return __builtin_fminl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return fmin(__type(__x), __type(__y));
}
- using std::fmod;
- using std::frexp;
-
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
hypot(float __x, float __y)
{ return __builtin_hypotf(__x, __y); }
inline long double
hypot(long double __x, long double __y)
{ return __builtin_hypotl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
- hypot(_Tp __x, _Up __y)
+ hypot(_Tp __y, _Up __x)
{
typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
- return hypot(__type(__x), __type(__y));
+ return hypot(__type(__y), __type(__x));
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline int
ilogb(float __x)
{ return __builtin_ilogbf(__x); }
inline int
ilogb(long double __x)
{ return __builtin_ilogbl(__x); }
+#endif
template<typename _Tp>
- inline int
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ int>::__type
ilogb(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return ilogb(__type(__x));
- }
-
- using std::ldexp;
+ { return __builtin_ilogb(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
lgamma(float __x)
{ return __builtin_lgammaf(__x); }
inline long double
lgamma(long double __x)
{ return __builtin_lgammal(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
lgamma(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return lgamma(__type(__x));
- }
+ { return __builtin_lgamma(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline long long
llrint(float __x)
{ return __builtin_llrintf(__x); }
inline long long
llrint(long double __x)
{ return __builtin_llrintl(__x); }
+#endif
template<typename _Tp>
- inline long long
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long long>::__type
llrint(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return llrint(__type(__x));
- }
+ { return __builtin_llrint(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline long long
llround(float __x)
{ return __builtin_llroundf(__x); }
inline long long
llround(long double __x)
{ return __builtin_llroundl(__x); }
+#endif
template<typename _Tp>
- inline long long
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long long>::__type
llround(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return llround(__type(__x));
- }
-
- using std::log;
- using std::log10;
+ { return __builtin_llround(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
log1p(float __x)
{ return __builtin_log1pf(__x); }
inline long double
log1p(long double __x)
{ return __builtin_log1pl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
log1p(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return log1p(__type(__x));
- }
+ { return __builtin_log1p(__x); }
// DR 568.
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
log2(float __x)
{ return __builtin_log2f(__x); }
inline long double
log2(long double __x)
{ return __builtin_log2l(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
log2(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return log2(__type(__x));
- }
+ { return __builtin_log2(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
logb(float __x)
{ return __builtin_logbf(__x); }
inline long double
logb(long double __x)
{ return __builtin_logbl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
logb(_Tp __x)
{
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return logb(__type(__x));
+ return __builtin_logb(__x);
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline long
lrint(float __x)
{ return __builtin_lrintf(__x); }
inline long
lrint(long double __x)
{ return __builtin_lrintl(__x); }
+#endif
template<typename _Tp>
- inline long
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long>::__type
lrint(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return lrint(__type(__x));
- }
+ { return __builtin_lrint(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline long
lround(float __x)
{ return __builtin_lroundf(__x); }
inline long
lround(long double __x)
{ return __builtin_lroundl(__x); }
+#endif
template<typename _Tp>
- inline long
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ long>::__type
lround(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return lround(__type(__x));
- }
+ { return __builtin_lround(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
nearbyint(float __x)
{ return __builtin_nearbyintf(__x); }
inline long double
nearbyint(long double __x)
{ return __builtin_nearbyintl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
nearbyint(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return nearbyint(__type(__x));
- }
+ { return __builtin_nearbyint(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
nextafter(float __x, float __y)
{ return __builtin_nextafterf(__x, __y); }
inline long double
nextafter(long double __x, long double __y)
{ return __builtin_nextafterl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return nextafter(__type(__x), __type(__y));
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
nexttoward(float __x, long double __y)
{ return __builtin_nexttowardf(__x, __y); }
inline long double
nexttoward(long double __x, long double __y)
{ return __builtin_nexttowardl(__x, __y); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
nexttoward(_Tp __x, long double __y)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return nexttoward(__type(__x), __y);
- }
-
- // DR 550. What should the return type of pow(float,int) be?
- // NB: C++0x and TR1 != C++03.
- // using std::pow;
+ { return __builtin_nexttoward(__x, __y); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
remainder(float __x, float __y)
{ return __builtin_remainderf(__x, __y); }
inline long double
remainder(long double __x, long double __y)
{ return __builtin_remainderl(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return remainder(__type(__x), __type(__y));
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
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); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return remquo(__type(__x), __type(__y), __pquo);
}
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
rint(float __x)
{ return __builtin_rintf(__x); }
inline long double
rint(long double __x)
{ return __builtin_rintl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
rint(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return rint(__type(__x));
- }
+ { return __builtin_rint(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
round(float __x)
{ return __builtin_roundf(__x); }
inline long double
round(long double __x)
{ return __builtin_roundl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
round(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return round(__type(__x));
- }
+ { return __builtin_round(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
scalbln(float __x, long __ex)
{ return __builtin_scalblnf(__x, __ex); }
inline long double
scalbln(long double __x, long __ex)
{ return __builtin_scalblnl(__x, __ex); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
scalbln(_Tp __x, long __ex)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return scalbln(__type(__x), __ex);
- }
+ { return __builtin_scalbln(__x, __ex); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
scalbn(float __x, int __ex)
{ return __builtin_scalbnf(__x, __ex); }
inline long double
scalbn(long double __x, int __ex)
{ return __builtin_scalbnl(__x, __ex); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
scalbn(_Tp __x, int __ex)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return scalbn(__type(__x), __ex);
- }
-
- using std::sin;
- using std::sinh;
- using std::sqrt;
- using std::tan;
- using std::tanh;
+ { return __builtin_scalbn(__x, __ex); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
tgamma(float __x)
{ return __builtin_tgammaf(__x); }
inline long double
tgamma(long double __x)
{ return __builtin_tgammal(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
tgamma(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return tgamma(__type(__x));
- }
+ { return __builtin_tgamma(__x); }
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
trunc(float __x)
{ return __builtin_truncf(__x); }
inline long double
trunc(long double __x)
{ return __builtin_truncl(__x); }
+#endif
template<typename _Tp>
- inline typename __gnu_cxx::__promote<_Tp>::__type
+ inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+ double>::__type
trunc(_Tp __x)
- {
- typedef typename __gnu_cxx::__promote<_Tp>::__type __type;
- return trunc(__type(__x));
- }
+ { return __builtin_trunc(__x); }
-#endif
-_GLIBCXX_END_NAMESPACE_VERSION
-}
-}
+#endif // __cplusplus < 201103L
-namespace std _GLIBCXX_VISIBILITY(default)
-{
-namespace tr1
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
+ /// @}
- // DR 550. What should the return type of pow(float,int) be?
- // NB: C++0x and TR1 != C++03.
- inline double
- pow(double __x, double __y)
- { return std::pow(__x, __y); }
+#endif /* _GLIBCXX_USE_C99_MATH_TR1 */
+ // DR 550. What should the return type of pow(float,int) be?
+ // NB: C++11 and TR1 != C++03.
+
+ // We cannot do "using std::pow;" because that would bring in unwanted
+ // pow(*, int) overloads in C++03, with the wrong return type. Instead we
+ // define all the necessary overloads, but the std::tr1::pow(double, double)
+ // overload cannot be provided here, because <tr1/math.h> would add it to
+ // the global namespace where it would clash with ::pow(double,double) from
+ // libc (revealed by the fix of PR c++/54537).
+ // The solution is to forward std::tr1::pow(double,double) to
+ // std::pow(double,double) via the function template below. See
+ // the discussion about this issue here:
+ // http://gcc.gnu.org/ml/gcc-patches/2012-09/msg01278.html
+
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
inline float
pow(float __x, float __y)
{ return std::pow(__x, __y); }
inline long double
pow(long double __x, long double __y)
{ return std::pow(__x, __y); }
+#endif
template<typename _Tp, typename _Up>
inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
return std::pow(__type(__x), __type(__y));
}
+#if __cplusplus >= 201103L
+ // We also deal with fabs in a special way, because "using std::fabs;"
+ // could bring in C++11's std::fabs<T>(const std::complex<T>&) with a
+ // different return type from std::tr1::fabs<T>(const std::complex<T>&).
+ // We define the necessary overloads, except std::tr1::fabs(double) which
+ // could clash with ::fabs(double) from libc.
+ // The function template handles double as well as integers, forwarding
+ // to std::fabs.
+
+#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO
+#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP
+ inline float
+ fabs(float __x)
+ { return __builtin_fabsf(__x); }
+
+ inline long double
+ fabs(long double __x)
+ { return __builtin_fabsl(__x); }
+#endif
+#endif
+
+ template<typename _Tp>
+ inline typename __gnu_cxx::__promote<_Tp>::__type
+ fabs(_Tp __x)
+ { return std::fabs(__x); }
+
+#else // ! C++11
+
+ // For C++03 just use std::fabs as there is no overload for std::complex<>.
+ using std::fabs;
+
+#endif // C++11
+
+} // namespace tr1
_GLIBCXX_END_NAMESPACE_VERSION
-}
-}
+} // namespace std
+
+/**
+ * @defgroup tr1_math_spec_func TR1 Mathematical Special Functions
+ * @ingroup numerics
+ *
+ * A collection of advanced mathematical special functions.
+ */
+
+#if _GLIBCXX_USE_STD_SPEC_FUNCS
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace tr1
+{
+ using std::assoc_laguerref;
+ using std::assoc_laguerrel;
+ using std::assoc_laguerre;
+
+ using std::assoc_legendref;
+ using std::assoc_legendrel;
+ using std::assoc_legendre;
+
+ using std::betaf;
+ using std::betal;
+ using std::beta;
+
+ using std::comp_ellint_1f;
+ using std::comp_ellint_1l;
+ using std::comp_ellint_1;
+
+ using std::comp_ellint_2f;
+ using std::comp_ellint_2l;
+ using std::comp_ellint_2;
+
+ using std::comp_ellint_3f;
+ using std::comp_ellint_3l;
+ using std::comp_ellint_3;
+
+ using std::cyl_bessel_if;
+ using std::cyl_bessel_il;
+ using std::cyl_bessel_i;
+
+ using std::cyl_bessel_jf;
+ using std::cyl_bessel_jl;
+ using std::cyl_bessel_j;
+
+ using std::cyl_bessel_kf;
+ using std::cyl_bessel_kl;
+ using std::cyl_bessel_k;
+
+ using std::cyl_neumannf;
+ using std::cyl_neumannl;
+ using std::cyl_neumann;
+
+ using std::ellint_1f;
+ using std::ellint_1l;
+ using std::ellint_1;
+
+ using std::ellint_2f;
+ using std::ellint_2l;
+ using std::ellint_2;
+
+ using std::ellint_3f;
+ using std::ellint_3l;
+ using std::ellint_3;
+
+ using std::expintf;
+ using std::expintl;
+ using std::expint;
+
+ using std::hermitef;
+ using std::hermitel;
+ using std::hermite;
+
+ using std::laguerref;
+ using std::laguerrel;
+ using std::laguerre;
+
+ using std::legendref;
+ using std::legendrel;
+ using std::legendre;
+
+ using std::riemann_zetaf;
+ using std::riemann_zetal;
+ using std::riemann_zeta;
+
+ using std::sph_besself;
+ using std::sph_bessell;
+ using std::sph_bessel;
+
+ using std::sph_legendref;
+ using std::sph_legendrel;
+ using std::sph_legendre;
+
+ using std::sph_neumannf;
+ using std::sph_neumannl;
+ using std::sph_neumann;
+
+} // namespace tr1
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#else // ! _GLIBCXX_USE_STD_SPEC_FUNCS
#include <bits/stl_algobase.h>
#include <limits>
#include <tr1/beta_function.tcc>
#include <tr1/ell_integral.tcc>
#include <tr1/exp_integral.tcc>
-#include <tr1/hypergeometric.tcc>
#include <tr1/legendre_function.tcc>
#include <tr1/modified_bessel_func.tcc>
#include <tr1/poly_hermite.tcc>
namespace std _GLIBCXX_VISIBILITY(default)
{
-namespace tr1
-{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- /**
- * @defgroup tr1_math_spec_func Mathematical Special Functions
- * @ingroup numerics
- *
- * A collection of advanced mathematical special functions.
- * @{
+namespace tr1
+ {
+ /** @addtogroup tr1_math_spec_func
+ * @{
*/
inline float
}
inline float
- conf_hypergf(float __a, float __c, float __x)
- { return __detail::__conf_hyperg<float>(__a, __c, __x); }
-
- inline long double
- conf_hypergl(long double __a, long double __c, long double __x)
- { return __detail::__conf_hyperg<long double>(__a, __c, __x); }
-
- /// 5.2.1.7 Confluent hypergeometric functions.
- template<typename _Tpa, typename _Tpc, typename _Tp>
- inline typename __gnu_cxx::__promote_3<_Tpa, _Tpc, _Tp>::__type
- conf_hyperg(_Tpa __a, _Tpc __c, _Tp __x)
- {
- typedef typename __gnu_cxx::__promote_3<_Tpa, _Tpc, _Tp>::__type __type;
- return __detail::__conf_hyperg<__type>(__a, __c, __x);
- }
-
- inline float
cyl_bessel_if(float __nu, float __x)
{ return __detail::__cyl_bessel_i<float>(__nu, __x); }
}
inline float
- hypergf(float __a, float __b, float __c, float __x)
- { return __detail::__hyperg<float>(__a, __b, __c, __x); }
-
- inline long double
- hypergl(long double __a, long double __b, long double __c, long double __x)
- { return __detail::__hyperg<long double>(__a, __b, __c, __x); }
-
- /// 5.2.1.17 Hypergeometric functions.
- template<typename _Tpa, typename _Tpb, typename _Tpc, typename _Tp>
- inline typename __gnu_cxx::__promote_4<_Tpa, _Tpb, _Tpc, _Tp>::__type
- hyperg(_Tpa __a, _Tpb __b, _Tpc __c, _Tp __x)
- {
- typedef typename __gnu_cxx::__promote_4<_Tpa, _Tpb, _Tpc, _Tp>::__type __type;
- return __detail::__hyperg<__type>(__a, __b, __c, __x);
- }
-
- inline float
laguerref(unsigned int __n, float __x)
{ return __detail::__laguerre<float>(__n, __x); }
return __detail::__sph_neumann<__type>(__n, __x);
}
- /* @} */ // tr1_math_spec_func
+ /// @} tr1_math_spec_func
+
+} // namespace tr1
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // _GLIBCXX_USE_STD_SPEC_FUNCS
+
+#if _GLIBCXX_USE_STD_SPEC_FUNCS && !defined(__STRICT_ANSI__)
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace tr1
+{
+ using __gnu_cxx::conf_hypergf;
+ using __gnu_cxx::conf_hypergl;
+ using __gnu_cxx::conf_hyperg;
+
+ using __gnu_cxx::hypergf;
+ using __gnu_cxx::hypergl;
+ using __gnu_cxx::hyperg;
+} // namespace tr1
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#else // ! (_GLIBCXX_USE_STD_SPEC_FUNCS && !defined(__STRICT_ANSI__))
+
+#include <bits/stl_algobase.h>
+#include <limits>
+#include <tr1/type_traits>
+
+#include <tr1/hypergeometric.tcc>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace tr1
+{
+ /** @addtogroup tr1_math_spec_func
+ * @{
+ */
+
+ inline float
+ conf_hypergf(float __a, float __c, float __x)
+ { return __detail::__conf_hyperg<float>(__a, __c, __x); }
+
+ inline long double
+ conf_hypergl(long double __a, long double __c, long double __x)
+ { return __detail::__conf_hyperg<long double>(__a, __c, __x); }
+
+ /// 5.2.1.7 Confluent hypergeometric functions.
+ template<typename _Tpa, typename _Tpc, typename _Tp>
+ inline typename __gnu_cxx::__promote_3<_Tpa, _Tpc, _Tp>::__type
+ conf_hyperg(_Tpa __a, _Tpc __c, _Tp __x)
+ {
+ typedef typename __gnu_cxx::__promote_3<_Tpa, _Tpc, _Tp>::__type __type;
+ return __detail::__conf_hyperg<__type>(__a, __c, __x);
+ }
+
+ inline float
+ hypergf(float __a, float __b, float __c, float __x)
+ { return __detail::__hyperg<float>(__a, __b, __c, __x); }
+
+ inline long double
+ hypergl(long double __a, long double __b, long double __c, long double __x)
+ { return __detail::__hyperg<long double>(__a, __b, __c, __x); }
+
+ /// 5.2.1.17 Hypergeometric functions.
+ template<typename _Tpa, typename _Tpb, typename _Tpc, typename _Tp>
+ inline typename __gnu_cxx::__promote_4<_Tpa, _Tpb, _Tpc, _Tp>::__type
+ hyperg(_Tpa __a, _Tpb __b, _Tpc __c, _Tp __x)
+ {
+ typedef typename __gnu_cxx::__promote_4<_Tpa, _Tpb, _Tpc, _Tp>::__type __type;
+ return __detail::__hyperg<__type>(__a, __b, __c, __x);
+ }
+
+ /// @} tr1_math_spec_func
+
+} // namespace tr1
+
_GLIBCXX_END_NAMESPACE_VERSION
-}
-}
+} // namespace std
+#endif // _GLIBCXX_USE_STD_SPEC_FUNCS && !defined(__STRICT_ANSI__)
#endif // _GLIBCXX_TR1_CMATH
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