chromium/third_party/libc++/src/include/__algorithm/unique_copy.h

//===----------------------------------------------------------------------===//
//
// 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___ALGORITHM_UNIQUE_COPY_H
#define _LIBCPP___ALGORITHM_UNIQUE_COPY_H

#include <__algorithm/comp.h>
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__iterator/iterator_traits.h>
#include <__type_traits/conditional.h>
#include <__type_traits/is_base_of.h>
#include <__type_traits/is_same.h>
#include <__utility/move.h>
#include <__utility/pair.h>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_PUSH_MACROS
#include <__undef_macros>

_LIBCPP_BEGIN_NAMESPACE_STD

namespace __unique_copy_tags {

struct __reread_from_input_tag { … };
struct __reread_from_output_tag { … };
struct __read_from_tmp_value_tag { … };

} // namespace __unique_copy_tags

template <class _AlgPolicy, class _BinaryPredicate, class _InputIterator, class _Sent, class _OutputIterator>
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _OutputIterator>
__unique_copy(_InputIterator __first,
              _Sent __last,
              _OutputIterator __result,
              _BinaryPredicate&& __pred,
              __unique_copy_tags::__read_from_tmp_value_tag) { … }

template <class _AlgPolicy, class _BinaryPredicate, class _ForwardIterator, class _Sent, class _OutputIterator>
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI pair<_ForwardIterator, _OutputIterator>
__unique_copy(_ForwardIterator __first,
              _Sent __last,
              _OutputIterator __result,
              _BinaryPredicate&& __pred,
              __unique_copy_tags::__reread_from_input_tag) { … }

template <class _AlgPolicy, class _BinaryPredicate, class _InputIterator, class _Sent, class _InputAndOutputIterator>
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _InputAndOutputIterator>
__unique_copy(_InputIterator __first,
              _Sent __last,
              _InputAndOutputIterator __result,
              _BinaryPredicate&& __pred,
              __unique_copy_tags::__reread_from_output_tag) { … }

template <class _InputIterator, class _OutputIterator, class _BinaryPredicate>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
unique_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _BinaryPredicate __pred) { … }

template <class _InputIterator, class _OutputIterator>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
unique_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result) { … }

_LIBCPP_END_NAMESPACE_STD

_LIBCPP_POP_MACROS

#endif // _LIBCPP___ALGORITHM_UNIQUE_COPY_H