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_TRIGONOMETRIC_FUNCTIONS_H
10 #define _LIBCPP___MATH_TRIGONOMETRIC_FUNCTIONS_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 // cos
25 
cos(float __x)26 inline _LIBCPP_HIDE_FROM_ABI float cos(float __x) _NOEXCEPT { return __builtin_cosf(__x); }
27 
28 template <class = int>
cos(double __x)29 _LIBCPP_HIDE_FROM_ABI double cos(double __x) _NOEXCEPT {
30   return __builtin_cos(__x);
31 }
32 
cos(long double __x)33 inline _LIBCPP_HIDE_FROM_ABI long double cos(long double __x) _NOEXCEPT { return __builtin_cosl(__x); }
34 
35 template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
cos(_A1 __x)36 inline _LIBCPP_HIDE_FROM_ABI double cos(_A1 __x) _NOEXCEPT {
37   return __builtin_cos((double)__x);
38 }
39 
40 // sin
41 
sin(float __x)42 inline _LIBCPP_HIDE_FROM_ABI float sin(float __x) _NOEXCEPT { return __builtin_sinf(__x); }
43 
44 template <class = int>
sin(double __x)45 _LIBCPP_HIDE_FROM_ABI double sin(double __x) _NOEXCEPT {
46   return __builtin_sin(__x);
47 }
48 
sin(long double __x)49 inline _LIBCPP_HIDE_FROM_ABI long double sin(long double __x) _NOEXCEPT { return __builtin_sinl(__x); }
50 
51 template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
sin(_A1 __x)52 inline _LIBCPP_HIDE_FROM_ABI double sin(_A1 __x) _NOEXCEPT {
53   return __builtin_sin((double)__x);
54 }
55 
56 // tan
57 
tan(float __x)58 inline _LIBCPP_HIDE_FROM_ABI float tan(float __x) _NOEXCEPT { return __builtin_tanf(__x); }
59 
60 template <class = int>
tan(double __x)61 _LIBCPP_HIDE_FROM_ABI double tan(double __x) _NOEXCEPT {
62   return __builtin_tan(__x);
63 }
64 
tan(long double __x)65 inline _LIBCPP_HIDE_FROM_ABI long double tan(long double __x) _NOEXCEPT { return __builtin_tanl(__x); }
66 
67 template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
tan(_A1 __x)68 inline _LIBCPP_HIDE_FROM_ABI double tan(_A1 __x) _NOEXCEPT {
69   return __builtin_tan((double)__x);
70 }
71 
72 } // namespace __math
73 
74 _LIBCPP_END_NAMESPACE_STD
75 
76 #endif // _LIBCPP___MATH_TRIGONOMETRIC_FUNCTIONS_H
77