1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H 11#define _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H 12 13#include <__config> 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#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION) 22 23template <class _Arg1, class _Arg2, class _Result> 24struct _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 binary_function { 25 typedef _Arg1 first_argument_type; 26 typedef _Arg2 second_argument_type; 27 typedef _Result result_type; 28}; 29 30#endif // _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION) 31 32template <class _Arg1, class _Arg2, class _Result> 33struct __binary_function_keep_layout_base { 34#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS) 35 using first_argument_type _LIBCPP_DEPRECATED_IN_CXX17 = _Arg1; 36 using second_argument_type _LIBCPP_DEPRECATED_IN_CXX17 = _Arg2; 37 using result_type _LIBCPP_DEPRECATED_IN_CXX17 = _Result; 38#endif 39}; 40 41#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION) 42_LIBCPP_DIAGNOSTIC_PUSH 43_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wdeprecated-declarations") 44template <class _Arg1, class _Arg2, class _Result> 45using __binary_function = binary_function<_Arg1, _Arg2, _Result>; 46_LIBCPP_DIAGNOSTIC_POP 47#else 48template <class _Arg1, class _Arg2, class _Result> 49using __binary_function = __binary_function_keep_layout_base<_Arg1, _Arg2, _Result>; 50#endif 51 52_LIBCPP_END_NAMESPACE_STD 53 54#endif // _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H 55