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___FWD_COMPLEX_H 10 #define _LIBCPP___FWD_COMPLEX_H 11 12 #include <__config> 13 #include <cstddef> 14 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 template <class _Tp> 22 class _LIBCPP_TEMPLATE_VIS complex; 23 24 #if _LIBCPP_STD_VER >= 26 25 26 template <size_t _Ip, class _Tp> 27 _LIBCPP_HIDE_FROM_ABI constexpr _Tp& get(complex<_Tp>&) noexcept; 28 29 template <size_t _Ip, class _Tp> 30 _LIBCPP_HIDE_FROM_ABI constexpr _Tp&& get(complex<_Tp>&&) noexcept; 31 32 template <size_t _Ip, class _Tp> 33 _LIBCPP_HIDE_FROM_ABI constexpr const _Tp& get(const complex<_Tp>&) noexcept; 34 35 template <size_t _Ip, class _Tp> 36 _LIBCPP_HIDE_FROM_ABI constexpr const _Tp&& get(const complex<_Tp>&&) noexcept; 37 38 #endif // _LIBCPP_STD_VER >= 26 39 40 _LIBCPP_END_NAMESPACE_STD 41 42 #endif // _LIBCPP___FWD_COMPLEX_H 43