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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___CXX03___FUNCTIONAL_UNARY_FUNCTION_H10#define _LIBCPP___CXX03___FUNCTIONAL_UNARY_FUNCTION_H11 12#include <__cxx03/__config>13 14#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)15# pragma GCC system_header16#endif17 18_LIBCPP_BEGIN_NAMESPACE_STD19 20template <class _Arg, class _Result>21struct _LIBCPP_TEMPLATE_VIS unary_function {22 typedef _Arg argument_type;23 typedef _Result result_type;24};25 26template <class _Arg, class _Result>27struct __unary_function_keep_layout_base {28 using argument_type = _Arg;29 using result_type = _Result;30};31 32_LIBCPP_DIAGNOSTIC_PUSH33_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wdeprecated-declarations")34template <class _Arg, class _Result>35using __unary_function = unary_function<_Arg, _Result>;36_LIBCPP_DIAGNOSTIC_POP37 38_LIBCPP_END_NAMESPACE_STD39 40#endif // _LIBCPP___CXX03___FUNCTIONAL_UNARY_FUNCTION_H41