53 lines
2.4 KiB
C++
53 lines
2.4 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_FIRST_OF_H
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#define _LIBCPP___ALGORITHM_FIND_FIRST_OF_H
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#include <__algorithm/comp.h>
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#include <__config>
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#include <__iterator/iterator_traits.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 _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
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_LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator1 __find_first_of_ce(_ForwardIterator1 __first1,
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_ForwardIterator1 __last1,
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_ForwardIterator2 __first2,
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_ForwardIterator2 __last2, _BinaryPredicate __pred) {
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for (; __first1 != __last1; ++__first1)
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for (_ForwardIterator2 __j = __first2; __j != __last2; ++__j)
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if (__pred(*__first1, *__j))
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return __first1;
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return __last1;
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}
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template <class _ForwardIterator1, class _ForwardIterator2, class _BinaryPredicate>
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_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator1
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find_first_of(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2,
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_ForwardIterator2 __last2, _BinaryPredicate __pred) {
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return _VSTD::__find_first_of_ce(__first1, __last1, __first2, __last2, __pred);
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}
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template <class _ForwardIterator1, class _ForwardIterator2>
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_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator1 find_first_of(
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_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _ForwardIterator2 __last2) {
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typedef typename iterator_traits<_ForwardIterator1>::value_type __v1;
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typedef typename iterator_traits<_ForwardIterator2>::value_type __v2;
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return _VSTD::__find_first_of_ce(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>());
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_FIND_FIRST_OF_H
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