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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-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H11#define _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H12 13#include <__config>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_BEGIN_NAMESPACE_STD20 21#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION)22 23template <class _Arg1, class _Arg2, class _Result>24struct _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#endif39};40 41#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION)42_LIBCPP_SUPPRESS_DEPRECATED_PUSH43template <class _Arg1, class _Arg2, class _Result>44using __binary_function _LIBCPP_NODEBUG = binary_function<_Arg1, _Arg2, _Result>;45_LIBCPP_SUPPRESS_DEPRECATED_POP46#else47template <class _Arg1, class _Arg2, class _Result>48using __binary_function _LIBCPP_NODEBUG = __binary_function_keep_layout_base<_Arg1, _Arg2, _Result>;49#endif50 51_LIBCPP_END_NAMESPACE_STD52 53#endif // _LIBCPP___FUNCTIONAL_BINARY_FUNCTION_H54