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_POINTER_TO_UNARY_FUNCTION_H 11 #define _LIBCPP___FUNCTIONAL_POINTER_TO_UNARY_FUNCTION_H 12 13 #include <__config> 14 #include <__functional/unary_function.h> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 # pragma clang include_instead(<functional>) 19 #endif 20 21 _LIBCPP_BEGIN_NAMESPACE_STD 22 23 #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS) 24 25 template <class _Arg, class _Result> 26 class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 pointer_to_unary_function 27 : public unary_function<_Arg, _Result> 28 { 29 _Result (*__f_)(_Arg); 30 public: 31 _LIBCPP_INLINE_VISIBILITY explicit pointer_to_unary_function(_Result (*__f)(_Arg)) 32 : __f_(__f) {} 33 _LIBCPP_INLINE_VISIBILITY _Result operator()(_Arg __x) const 34 {return __f_(__x);} 35 }; 36 37 template <class _Arg, class _Result> 38 _LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY 39 pointer_to_unary_function<_Arg,_Result> 40 ptr_fun(_Result (*__f)(_Arg)) 41 {return pointer_to_unary_function<_Arg,_Result>(__f);} 42 43 #endif // _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS) 44 45 _LIBCPP_END_NAMESPACE_STD 46 47 #endif // _LIBCPP___FUNCTIONAL_POINTER_TO_UNARY_FUNCTION_H 48