libcxx/include/__math/trigonometric_functions.h

   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
  26 inline _LIBCPP_HIDE_FROM_ABI float cos(float __x) _NOEXCEPT { return __builtin_cosf(__x); }
  27
  28 template <class = int>
  29 _LIBCPP_HIDE_FROM_ABI double cos(double __x) _NOEXCEPT {
  30   return __builtin_cos(__x);
  31 }
  32
  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>
  36 inline _LIBCPP_HIDE_FROM_ABI double cos(_A1 __x) _NOEXCEPT {
  37   return __builtin_cos((double)__x);
  38 }
  39
  40 // sin
  41
  42 inline _LIBCPP_HIDE_FROM_ABI float sin(float __x) _NOEXCEPT { return __builtin_sinf(__x); }
  43
  44 template <class = int>
  45 _LIBCPP_HIDE_FROM_ABI double sin(double __x) _NOEXCEPT {
  46   return __builtin_sin(__x);
  47 }
  48
  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>
  52 inline _LIBCPP_HIDE_FROM_ABI double sin(_A1 __x) _NOEXCEPT {
  53   return __builtin_sin((double)__x);
  54 }
  55
  56 // tan
  57
  58 inline _LIBCPP_HIDE_FROM_ABI float tan(float __x) _NOEXCEPT { return __builtin_tanf(__x); }
  59
  60 template <class = int>
  61 _LIBCPP_HIDE_FROM_ABI double tan(double __x) _NOEXCEPT {
  62   return __builtin_tan(__x);
  63 }
  64
  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>
  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