| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H |
| #define _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H |
| |
| #include <__algorithm/search.h> |
| #include <__config> |
| #include <__functional/identity.h> |
| #include <__functional/operations.h> |
| #include <__iterator/iterator_traits.h> |
| #include <__utility/pair.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER >= 17 |
| |
| // default searcher |
| template<class _ForwardIterator, class _BinaryPredicate = equal_to<>> |
| class _LIBCPP_TEMPLATE_VIS default_searcher { |
| public: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 |
| default_searcher(_ForwardIterator __f, _ForwardIterator __l, |
| _BinaryPredicate __p = _BinaryPredicate()) |
| : __first_(__f), __last_(__l), __pred_(__p) {} |
| |
| template <typename _ForwardIterator2> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 |
| pair<_ForwardIterator2, _ForwardIterator2> |
| operator () (_ForwardIterator2 __f, _ForwardIterator2 __l) const |
| { |
| auto __proj = __identity(); |
| return std::__search_impl(__f, __l, __first_, __last_, __pred_, __proj, __proj); |
| } |
| |
| private: |
| _ForwardIterator __first_; |
| _ForwardIterator __last_; |
| _BinaryPredicate __pred_; |
| }; |
| _LIBCPP_CTAD_SUPPORTED_FOR_TYPE(default_searcher); |
| |
| #endif // _LIBCPP_STD_VER >= 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___FUNCTIONAL_DEFAULT_SEARCHER_H |