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| 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___CXX03___ALGORITHM_ADJACENT_FIND_H |
| 11 | #define _LIBCPP___CXX03___ALGORITHM_ADJACENT_FIND_H |
| 12 | |
| 13 | #include <__cxx03/__algorithm/comp.h> |
| 14 | #include <__cxx03/__algorithm/iterator_operations.h> |
| 15 | #include <__cxx03/__config> |
| 16 | #include <__cxx03/__iterator/iterator_traits.h> |
| 17 | #include <__cxx03/__utility/move.h> |
| 18 | |
| 19 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 20 | # pragma GCC system_header |
| 21 | #endif |
| 22 | |
| 23 | _LIBCPP_PUSH_MACROS |
| 24 | #include <__cxx03/__undef_macros> |
| 25 | |
| 26 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 27 | |
| 28 | template <class _Iter, class _Sent, class _BinaryPredicate> |
| 29 | _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _Iter __adjacent_find(_Iter __first, _Sent __last, _BinaryPredicate&& __pred) { |
| 30 | if (__first == __last) |
| 31 | return __first; |
| 32 | _Iter __i = __first; |
| 33 | while (++__i != __last) { |
| 34 | if (__pred(*__first, *__i)) |
| 35 | return __first; |
| 36 | __first = __i; |
| 37 | } |
| 38 | return __i; |
| 39 | } |
| 40 | |
| 41 | template <class _ForwardIterator, class _BinaryPredicate> |
| 42 | _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator |
| 43 | adjacent_find(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __pred) { |
| 44 | return std::__adjacent_find(std::move(__first), std::move(__last), __pred); |
| 45 | } |
| 46 | |
| 47 | template <class _ForwardIterator> |
| 48 | _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator |
| 49 | adjacent_find(_ForwardIterator __first, _ForwardIterator __last) { |
| 50 | return std::adjacent_find(std::move(__first), std::move(__last), __equal_to()); |
| 51 | } |
| 52 | |
| 53 | _LIBCPP_END_NAMESPACE_STD |
| 54 | |
| 55 | _LIBCPP_POP_MACROS |
| 56 | |
| 57 | #endif // _LIBCPP___CXX03___ALGORITHM_ADJACENT_FIND_H |
| 58 |
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