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_DEFAULT_SEARCHER_H 11 #define _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H 12 13 #include <__algorithm/search.h> 14 #include <__config> 15 #include <__functional/identity.h> 16 #include <__functional/operations.h> 17 #include <__iterator/iterator_traits.h> 18 #include <__utility/pair.h> 19 20 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 21 # pragma GCC system_header 22 #endif 23 24 _LIBCPP_BEGIN_NAMESPACE_STD 25 26 #if _LIBCPP_STD_VER > 14 27 28 // default searcher 29 template<class _ForwardIterator, class _BinaryPredicate = equal_to<>> 30 class _LIBCPP_TEMPLATE_VIS default_searcher { 31 public: 32 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 33 default_searcher(_ForwardIterator __f, _ForwardIterator __l, 34 _BinaryPredicate __p = _BinaryPredicate()) 35 : __first_(__f), __last_(__l), __pred_(__p) {} 36 37 template <typename _ForwardIterator2> 38 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 39 pair<_ForwardIterator2, _ForwardIterator2> 40 operator () (_ForwardIterator2 __f, _ForwardIterator2 __l) const 41 { 42 auto __proj = __identity(); 43 return std::__search_impl(__f, __l, __first_, __last_, __pred_, __proj, __proj); 44 } 45 46 private: 47 _ForwardIterator __first_; 48 _ForwardIterator __last_; 49 _BinaryPredicate __pred_; 50 }; 51 _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(default_searcher); 52 53 #endif // _LIBCPP_STD_VER > 14 54 55 _LIBCPP_END_NAMESPACE_STD 56 57 #endif // _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H 58