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 
sqrt(float __x)26 inline _LIBCPP_HIDE_FROM_ABI float sqrt(float __x) _NOEXCEPT { return __builtin_sqrtf(__x); }
27 
28 template <class = int>
sqrt(double __x)29 _LIBCPP_HIDE_FROM_ABI double sqrt(double __x) _NOEXCEPT {
30   return __builtin_sqrt(__x);
31 }
32 
sqrt(long double __x)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>
sqrt(_A1 __x)36 inline _LIBCPP_HIDE_FROM_ABI double sqrt(_A1 __x) _NOEXCEPT {
37   return __builtin_sqrt((double)__x);
38 }
39 
40 // cbrt
41 
cbrt(float __x)42 _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float cbrt(float __x) _NOEXCEPT { return __builtin_cbrtf(__x); }
43 
44 template <class = int>
cbrt(double __x)45 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double cbrt(double __x) _NOEXCEPT {
46   return __builtin_cbrt(__x);
47 }
48 
cbrt(long double __x)49 _LIBCPP_NODISCARD_EXT 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>
cbrt(_A1 __x)54 _LIBCPP_NODISCARD_EXT 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