1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___MATH_ROOTS_H 10 #define _LIBCPP___MATH_ROOTS_H 11 12 #include <__config> 13 #include <__type_traits/enable_if.h> 14 #include <__type_traits/is_integral.h> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 namespace __math { 23 24 // sqrt 25 26 inline _LIBCPP_HIDE_FROM_ABI float sqrt(float __x) _NOEXCEPT { return __builtin_sqrtf(__x); } 27 28 template <class = int> 29 _LIBCPP_HIDE_FROM_ABI double sqrt(double __x) _NOEXCEPT { 30 return __builtin_sqrt(__x); 31 } 32 33 inline _LIBCPP_HIDE_FROM_ABI long double sqrt(long double __x) _NOEXCEPT { return __builtin_sqrtl(__x); } 34 35 template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 36 inline _LIBCPP_HIDE_FROM_ABI double sqrt(_A1 __x) _NOEXCEPT { 37 return __builtin_sqrt((double)__x); 38 } 39 40 // cbrt 41 42 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float cbrt(float __x) _NOEXCEPT { return __builtin_cbrtf(__x); } 43 44 template <class = int> 45 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double cbrt(double __x) _NOEXCEPT { 46 return __builtin_cbrt(__x); 47 } 48 49 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double cbrt(long double __x) _NOEXCEPT { 50 return __builtin_cbrtl(__x); 51 } 52 53 template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 54 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double cbrt(_A1 __x) _NOEXCEPT { 55 return __builtin_cbrt((double)__x); 56 } 57 58 } // namespace __math 59 60 _LIBCPP_END_NAMESPACE_STD 61 62 #endif // _LIBCPP___MATH_ROOTS_H 63