1fe6060f1SDimitry Andric // -*- C++ -*- 2fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 3fe6060f1SDimitry Andric // 4fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7fe6060f1SDimitry Andric // 8fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 9fe6060f1SDimitry Andric 10fe6060f1SDimitry Andric #ifndef _LIBCPP___FUNCTIONAL_POINTER_TO_UNARY_FUNCTION_H 11fe6060f1SDimitry Andric #define _LIBCPP___FUNCTIONAL_POINTER_TO_UNARY_FUNCTION_H 12fe6060f1SDimitry Andric 13fe6060f1SDimitry Andric #include <__config> 14fe6060f1SDimitry Andric #include <__functional/unary_function.h> 15fe6060f1SDimitry Andric 16fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17fe6060f1SDimitry Andric # pragma GCC system_header 18fe6060f1SDimitry Andric #endif 19fe6060f1SDimitry Andric 20fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 21fe6060f1SDimitry Andric 22fe6060f1SDimitry Andric #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS) 23fe6060f1SDimitry Andric 24fe6060f1SDimitry Andric template <class _Arg, class _Result> 25*0fca6ea1SDimitry Andric class _LIBCPP_TEMPLATE_VIS 26*0fca6ea1SDimitry Andric _LIBCPP_DEPRECATED_IN_CXX11 pointer_to_unary_function : public __unary_function<_Arg, _Result> { 27fe6060f1SDimitry Andric _Result (*__f_)(_Arg); 28cb14a3feSDimitry Andric 29fe6060f1SDimitry Andric public: 30cb14a3feSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit pointer_to_unary_function(_Result (*__f)(_Arg)) : __f_(__f) {} 31cb14a3feSDimitry Andric _LIBCPP_HIDE_FROM_ABI _Result operator()(_Arg __x) const { return __f_(__x); } 32fe6060f1SDimitry Andric }; 33fe6060f1SDimitry Andric 34fe6060f1SDimitry Andric template <class _Arg, class _Result> 35cb14a3feSDimitry Andric _LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_HIDE_FROM_ABI pointer_to_unary_function<_Arg, _Result> 36cb14a3feSDimitry Andric ptr_fun(_Result (*__f)(_Arg)) { 37cb14a3feSDimitry Andric return pointer_to_unary_function<_Arg, _Result>(__f); 38cb14a3feSDimitry Andric } 39fe6060f1SDimitry Andric 40fe6060f1SDimitry Andric #endif // _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS) 41fe6060f1SDimitry Andric 42fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 43fe6060f1SDimitry Andric 44fe6060f1SDimitry Andric #endif // _LIBCPP___FUNCTIONAL_POINTER_TO_UNARY_FUNCTION_H 45