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// -*- 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
default_searcher(_ForwardIterator __f, _ForwardIterator __l, _BinaryPredicate __p = _BinaryPredicate())
: __first_(__f), __last_(__l), __pred_(__p) {}
template <typename _ForwardIterator2>
_LIBCPP_HIDE_FROM_ABI _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
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