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___FUNCTIONAL_UNARY_FUNCTION_H 10 #define _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H 11 12 #include <__config> 13 14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15 #pragma GCC system_header 16 #endif 17 18 _LIBCPP_BEGIN_NAMESPACE_STD 19 20 template <class _Arg, class _Result> 21 struct _LIBCPP_TEMPLATE_VIS unary_function 22 { 23 typedef _Arg argument_type; 24 typedef _Result result_type; 25 }; 26 27 _LIBCPP_END_NAMESPACE_STD 28 29 #endif // _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H 30