1e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 2e78f53d1SNikolas Klauser // 3e78f53d1SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e78f53d1SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 5e78f53d1SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e78f53d1SNikolas Klauser // 7e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 8e78f53d1SNikolas Klauser 9*ce777190SNikolas Klauser #ifndef _LIBCPP___CXX03___MATH_GAMMA_H 10*ce777190SNikolas Klauser #define _LIBCPP___CXX03___MATH_GAMMA_H 11e78f53d1SNikolas Klauser 1273fbae83SNikolas Klauser #include <__cxx03/__config> 1373fbae83SNikolas Klauser #include <__cxx03/__type_traits/enable_if.h> 1473fbae83SNikolas Klauser #include <__cxx03/__type_traits/is_integral.h> 15e78f53d1SNikolas Klauser 16e78f53d1SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17e78f53d1SNikolas Klauser # pragma GCC system_header 18e78f53d1SNikolas Klauser #endif 19e78f53d1SNikolas Klauser 20e78f53d1SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 21e78f53d1SNikolas Klauser 22e78f53d1SNikolas Klauser namespace __math { 23e78f53d1SNikolas Klauser 24e78f53d1SNikolas Klauser // lgamma 25e78f53d1SNikolas Klauser 26e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI float lgamma(float __x) _NOEXCEPT { return __builtin_lgammaf(__x); } 27e78f53d1SNikolas Klauser 28e78f53d1SNikolas Klauser template <class = int> 29e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI double lgamma(double __x) _NOEXCEPT { 30e78f53d1SNikolas Klauser return __builtin_lgamma(__x); 31e78f53d1SNikolas Klauser } 32e78f53d1SNikolas Klauser 33e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI long double lgamma(long double __x) _NOEXCEPT { return __builtin_lgammal(__x); } 34e78f53d1SNikolas Klauser 35e78f53d1SNikolas Klauser template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 36e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI double lgamma(_A1 __x) _NOEXCEPT { 37e78f53d1SNikolas Klauser return __builtin_lgamma((double)__x); 38e78f53d1SNikolas Klauser } 39e78f53d1SNikolas Klauser 40e78f53d1SNikolas Klauser // nan 41e78f53d1SNikolas Klauser 42e78f53d1SNikolas Klauser // tgamma 43e78f53d1SNikolas Klauser 44e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI float tgamma(float __x) _NOEXCEPT { return __builtin_tgammaf(__x); } 45e78f53d1SNikolas Klauser 46e78f53d1SNikolas Klauser template <class = int> 47e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI double tgamma(double __x) _NOEXCEPT { 48e78f53d1SNikolas Klauser return __builtin_tgamma(__x); 49e78f53d1SNikolas Klauser } 50e78f53d1SNikolas Klauser 51e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI long double tgamma(long double __x) _NOEXCEPT { return __builtin_tgammal(__x); } 52e78f53d1SNikolas Klauser 53e78f53d1SNikolas Klauser template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 54e78f53d1SNikolas Klauser inline _LIBCPP_HIDE_FROM_ABI double tgamma(_A1 __x) _NOEXCEPT { 55e78f53d1SNikolas Klauser return __builtin_tgamma((double)__x); 56e78f53d1SNikolas Klauser } 57e78f53d1SNikolas Klauser 58e78f53d1SNikolas Klauser } // namespace __math 59e78f53d1SNikolas Klauser 60e78f53d1SNikolas Klauser _LIBCPP_END_NAMESPACE_STD 61e78f53d1SNikolas Klauser 62*ce777190SNikolas Klauser #endif // _LIBCPP___CXX03___MATH_GAMMA_H 63