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1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef _LIBCPP___ALGORITHM_RANGES_SET_SYMMETRIC_DIFFERENCE_H
10#define _LIBCPP___ALGORITHM_RANGES_SET_SYMMETRIC_DIFFERENCE_H
11
12#include <__algorithm/in_in_out_result.h>
13#include <__algorithm/make_projected.h>
14#include <__algorithm/set_symmetric_difference.h>
15#include <__config>
16#include <__functional/identity.h>
17#include <__functional/invoke.h>
18#include <__functional/ranges_operations.h>
19#include <__iterator/concepts.h>
20#include <__iterator/mergeable.h>
21#include <__ranges/access.h>
22#include <__ranges/concepts.h>
23#include <__ranges/dangling.h>
24#include <__utility/move.h>
25
26#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
27# pragma GCC system_header
28#endif
29
30_LIBCPP_PUSH_MACROS
31#include <__undef_macros>
32
33#if _LIBCPP_STD_VER >= 20
34
35_LIBCPP_BEGIN_NAMESPACE_STD
36
37namespace ranges {
38
39template <class _InIter1, class _InIter2, class _OutIter>
40using set_symmetric_difference_result = in_in_out_result<_InIter1, _InIter2, _OutIter>;
41
42struct __set_symmetric_difference {
43 template <input_iterator _InIter1,
44 sentinel_for<_InIter1> _Sent1,
45 input_iterator _InIter2,
46 sentinel_for<_InIter2> _Sent2,
47 weakly_incrementable _OutIter,
48 class _Comp = ranges::less,
49 class _Proj1 = identity,
50 class _Proj2 = identity>
51 requires mergeable<_InIter1, _InIter2, _OutIter, _Comp, _Proj1, _Proj2>
52 _LIBCPP_HIDE_FROM_ABI constexpr set_symmetric_difference_result<_InIter1, _InIter2, _OutIter> operator()(
53 _InIter1 __first1,
54 _Sent1 __last1,
55 _InIter2 __first2,
56 _Sent2 __last2,
57 _OutIter __result,
58 _Comp __comp = {},
59 _Proj1 __proj1 = {},
60 _Proj2 __proj2 = {}) const {
61 auto __ret = std::__set_symmetric_difference(
62 std::move(__first1),
63 std::move(__last1),
64 std::move(__first2),
65 std::move(__last2),
66 std::move(__result),
67 ranges::__make_projected_comp(__comp, __proj1, __proj2));
68 return {std::move(__ret.__in1_), std::move(__ret.__in2_), std::move(__ret.__out_)};
69 }
70
71 template <input_range _Range1,
72 input_range _Range2,
73 weakly_incrementable _OutIter,
74 class _Comp = ranges::less,
75 class _Proj1 = identity,
76 class _Proj2 = identity>
77 requires mergeable<iterator_t<_Range1>, iterator_t<_Range2>, _OutIter, _Comp, _Proj1, _Proj2>
78 _LIBCPP_HIDE_FROM_ABI constexpr set_symmetric_difference_result<borrowed_iterator_t<_Range1>,
79 borrowed_iterator_t<_Range2>,
80 _OutIter>
81 operator()(_Range1&& __range1,
82 _Range2&& __range2,
83 _OutIter __result,
84 _Comp __comp = {},
85 _Proj1 __proj1 = {},
86 _Proj2 __proj2 = {}) const {
87 auto __ret = std::__set_symmetric_difference(
88 ranges::begin(__range1),
89 ranges::end(__range1),
90 ranges::begin(__range2),
91 ranges::end(__range2),
92 std::move(__result),
93 ranges::__make_projected_comp(__comp, __proj1, __proj2));
94 return {std::move(__ret.__in1_), std::move(__ret.__in2_), std::move(__ret.__out_)};
95 }
96};
97
98inline namespace __cpo {
99inline constexpr auto set_symmetric_difference = __set_symmetric_difference{};
100} // namespace __cpo
101} // namespace ranges
102
103_LIBCPP_END_NAMESPACE_STD
104
105#endif // _LIBCPP_STD_VER >= 20
106
107_LIBCPP_POP_MACROS
108
109#endif // _LIBCPP___ALGORITHM_RANGES_SET_SYMMETRIC_DIFFERENCE_H