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/operations.h> 16 #include <__iterator/iterator_traits.h> 17 #include <utility> 18 19 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 20 #pragma GCC system_header 21 #endif 22 23 _LIBCPP_BEGIN_NAMESPACE_STD 24 25 #if _LIBCPP_STD_VER > 14 26 27 // default searcher 28 template<class _ForwardIterator, class _BinaryPredicate = equal_to<>> 29 class _LIBCPP_TEMPLATE_VIS default_searcher { 30 public: 31 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 32 default_searcher(_ForwardIterator __f, _ForwardIterator __l, 33 _BinaryPredicate __p = _BinaryPredicate()) 34 : __first_(__f), __last_(__l), __pred_(__p) {} 35 36 template <typename _ForwardIterator2> 37 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 38 pair<_ForwardIterator2, _ForwardIterator2> 39 operator () (_ForwardIterator2 __f, _ForwardIterator2 __l) const 40 { 41 return _VSTD::__search(__f, __l, __first_, __last_, __pred_, 42 typename iterator_traits<_ForwardIterator>::iterator_category(), 43 typename iterator_traits<_ForwardIterator2>::iterator_category()); 44 } 45 46 private: 47 _ForwardIterator __first_; 48 _ForwardIterator __last_; 49 _BinaryPredicate __pred_; 50 }; 51 52 #endif // _LIBCPP_STD_VER > 14 53 54 _LIBCPP_END_NAMESPACE_STD 55 56 #endif // _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H 57