44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_FIND_IF_H
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#define _LIBCPP___ALGORITHM_FIND_IF_H
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#include <__config>
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#include <__functional/identity.h>
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#include <__memory/valid_range.h>
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#include <__type_traits/invoke.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Iter, class _Sent, class _Pred, class _Proj>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 _Iter
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__find_if(_Iter __first, _Sent __last, _Pred&& __pred, _Proj&& __proj) {
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std::__assume_valid_range(__first, __last);
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for (; __first != __last; ++__first)
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if (std::__invoke(__pred, std::__invoke(__proj, *__first)))
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break;
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return __first;
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}
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template <class _InputIterator, class _Predicate>
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[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator
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find_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
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return std::__find_if(__first, __last, __pred, __identity());
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_FIND_IF_H
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