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| 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___CXX03___MATH_HYPOT_H |
| 10 | #define _LIBCPP___CXX03___MATH_HYPOT_H |
| 11 | |
| 12 | #include <__cxx03/__algorithm/max.h> |
| 13 | #include <__cxx03/__config> |
| 14 | #include <__cxx03/__math/abs.h> |
| 15 | #include <__cxx03/__math/exponential_functions.h> |
| 16 | #include <__cxx03/__math/roots.h> |
| 17 | #include <__cxx03/__type_traits/enable_if.h> |
| 18 | #include <__cxx03/__type_traits/is_arithmetic.h> |
| 19 | #include <__cxx03/__type_traits/is_same.h> |
| 20 | #include <__cxx03/__type_traits/promote.h> |
| 21 | #include <__cxx03/__utility/pair.h> |
| 22 | #include <__cxx03/limits> |
| 23 | |
| 24 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 25 | # pragma GCC system_header |
| 26 | #endif |
| 27 | |
| 28 | _LIBCPP_PUSH_MACROS |
| 29 | #include <__cxx03/__undef_macros> |
| 30 | |
| 31 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 32 | |
| 33 | namespace __math { |
| 34 | |
| 35 | inline _LIBCPP_HIDE_FROM_ABI float hypot(float __x, float __y) _NOEXCEPT { return __builtin_hypotf(__x, __y); } |
| 36 | |
| 37 | template <class = int> |
| 38 | _LIBCPP_HIDE_FROM_ABI double hypot(double __x, double __y) _NOEXCEPT { |
| 39 | return __builtin_hypot(__x, __y); |
| 40 | } |
| 41 | |
| 42 | inline _LIBCPP_HIDE_FROM_ABI long double hypot(long double __x, long double __y) _NOEXCEPT { |
| 43 | return __builtin_hypotl(__x, __y); |
| 44 | } |
| 45 | |
| 46 | template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0> |
| 47 | inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type hypot(_A1 __x, _A2 __y) _NOEXCEPT { |
| 48 | using __result_type = typename __promote<_A1, _A2>::type; |
| 49 | static_assert(!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value), ""); |
| 50 | return __math::hypot((__result_type)__x, (__result_type)__y); |
| 51 | } |
| 52 | |
| 53 | } // namespace __math |
| 54 | |
| 55 | _LIBCPP_END_NAMESPACE_STD |
| 56 | _LIBCPP_POP_MACROS |
| 57 | |
| 58 | #endif // _LIBCPP___CXX03___MATH_HYPOT_H |
| 59 |
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