15f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 25f757f3fSDimitry Andric // 35f757f3fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 45f757f3fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 55f757f3fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65f757f3fSDimitry Andric // 75f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 85f757f3fSDimitry Andric 95f757f3fSDimitry Andric #ifndef _LIBCPP___MATH_INVERSE_TRIGONOMETRIC_FUNCTIONS_H 105f757f3fSDimitry Andric #define _LIBCPP___MATH_INVERSE_TRIGONOMETRIC_FUNCTIONS_H 115f757f3fSDimitry Andric 125f757f3fSDimitry Andric #include <__config> 135f757f3fSDimitry Andric #include <__type_traits/enable_if.h> 145f757f3fSDimitry Andric #include <__type_traits/is_arithmetic.h> 155f757f3fSDimitry Andric #include <__type_traits/is_integral.h> 165f757f3fSDimitry Andric #include <__type_traits/is_same.h> 175f757f3fSDimitry Andric #include <__type_traits/promote.h> 185f757f3fSDimitry Andric 195f757f3fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 205f757f3fSDimitry Andric # pragma GCC system_header 215f757f3fSDimitry Andric #endif 225f757f3fSDimitry Andric 235f757f3fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 245f757f3fSDimitry Andric 255f757f3fSDimitry Andric namespace __math { 265f757f3fSDimitry Andric 275f757f3fSDimitry Andric // acos 285f757f3fSDimitry Andric 295f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI float acos(float __x) _NOEXCEPT { return __builtin_acosf(__x); } 305f757f3fSDimitry Andric 315f757f3fSDimitry Andric template <class = int> 325f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI double acos(double __x) _NOEXCEPT { 335f757f3fSDimitry Andric return __builtin_acos(__x); 345f757f3fSDimitry Andric } 355f757f3fSDimitry Andric 365f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI long double acos(long double __x) _NOEXCEPT { return __builtin_acosl(__x); } 375f757f3fSDimitry Andric 385f757f3fSDimitry Andric template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 395f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI double acos(_A1 __x) _NOEXCEPT { 405f757f3fSDimitry Andric return __builtin_acos((double)__x); 415f757f3fSDimitry Andric } 425f757f3fSDimitry Andric 435f757f3fSDimitry Andric // asin 445f757f3fSDimitry Andric 455f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI float asin(float __x) _NOEXCEPT { return __builtin_asinf(__x); } 465f757f3fSDimitry Andric 475f757f3fSDimitry Andric template <class = int> 485f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI double asin(double __x) _NOEXCEPT { 495f757f3fSDimitry Andric return __builtin_asin(__x); 505f757f3fSDimitry Andric } 515f757f3fSDimitry Andric 525f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI long double asin(long double __x) _NOEXCEPT { return __builtin_asinl(__x); } 535f757f3fSDimitry Andric 545f757f3fSDimitry Andric template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 555f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI double asin(_A1 __x) _NOEXCEPT { 565f757f3fSDimitry Andric return __builtin_asin((double)__x); 575f757f3fSDimitry Andric } 585f757f3fSDimitry Andric 595f757f3fSDimitry Andric // atan 605f757f3fSDimitry Andric 615f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI float atan(float __x) _NOEXCEPT { return __builtin_atanf(__x); } 625f757f3fSDimitry Andric 635f757f3fSDimitry Andric template <class = int> 645f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI double atan(double __x) _NOEXCEPT { 655f757f3fSDimitry Andric return __builtin_atan(__x); 665f757f3fSDimitry Andric } 675f757f3fSDimitry Andric 685f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI long double atan(long double __x) _NOEXCEPT { return __builtin_atanl(__x); } 695f757f3fSDimitry Andric 705f757f3fSDimitry Andric template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0> 715f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI double atan(_A1 __x) _NOEXCEPT { 725f757f3fSDimitry Andric return __builtin_atan((double)__x); 735f757f3fSDimitry Andric } 745f757f3fSDimitry Andric 755f757f3fSDimitry Andric // atan2 765f757f3fSDimitry Andric 775f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI float atan2(float __y, float __x) _NOEXCEPT { return __builtin_atan2f(__y, __x); } 785f757f3fSDimitry Andric 795f757f3fSDimitry Andric template <class = int> 805f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI double atan2(double __x, double __y) _NOEXCEPT { 815f757f3fSDimitry Andric return __builtin_atan2(__x, __y); 825f757f3fSDimitry Andric } 835f757f3fSDimitry Andric 845f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI long double atan2(long double __y, long double __x) _NOEXCEPT { 855f757f3fSDimitry Andric return __builtin_atan2l(__y, __x); 865f757f3fSDimitry Andric } 875f757f3fSDimitry Andric 885f757f3fSDimitry Andric template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> 895f757f3fSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type atan2(_A1 __y, _A2 __x) _NOEXCEPT { 905f757f3fSDimitry Andric using __result_type = typename __promote<_A1, _A2>::type; 91*0fca6ea1SDimitry Andric static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), ""); 925f757f3fSDimitry Andric return __math::atan2((__result_type)__y, (__result_type)__x); 935f757f3fSDimitry Andric } 945f757f3fSDimitry Andric 955f757f3fSDimitry Andric } // namespace __math 965f757f3fSDimitry Andric 975f757f3fSDimitry Andric _LIBCPP_END_NAMESPACE_STD 985f757f3fSDimitry Andric 995f757f3fSDimitry Andric #endif // _LIBCPP___MATH_INVERSE_TRIGONOMETRIC_FUNCTIONS_H 100