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96b674f23c
implement `std::ranges::set_intersection` by reusing the classic `std::set_intersenction` added unit tests Differential Revision: https://reviews.llvm.org/D129233
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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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___ALGORIHTM_ITERATOR_OPERATIONS_H
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#define _LIBCPP___ALGORIHTM_ITERATOR_OPERATIONS_H
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#include <__config>
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#include <__iterator/advance.h>
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#include <__iterator/distance.h>
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#include <__iterator/iterator_traits.h>
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#include <__iterator/next.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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#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
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struct _RangesIterOps {
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static constexpr auto advance = ranges::advance;
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static constexpr auto distance = ranges::distance;
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static constexpr auto next = ranges::next;
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};
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#endif
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struct _StdIterOps {
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template <class _Iterator, class _Distance>
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_LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11 void advance(_Iterator& __iter, _Distance __count) {
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return std::advance(__iter, __count);
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}
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template <class _Iterator>
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_LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
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typename iterator_traits<_Iterator>::difference_type distance(_Iterator __first, _Iterator __last) {
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return std::distance(__first, __last);
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}
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template <class _Iterator>
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_LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR_AFTER_CXX11
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_Iterator next(_Iterator, _Iterator __last) {
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return __last;
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}
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORIHTM_ITERATOR_OPERATIONS_H
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