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a945c346 | 1 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
bc464641 PP |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
7dbb6913 | 18 | // { dg-do run { target c++20 } } |
bc464641 PP |
19 | |
20 | #include <algorithm> | |
21 | #include <testsuite_hooks.h> | |
22 | #include <testsuite_iterators.h> | |
23 | ||
24 | using __gnu_test::test_container; | |
25 | using __gnu_test::test_range; | |
26 | using __gnu_test::input_iterator_wrapper; | |
27 | using __gnu_test::forward_iterator_wrapper; | |
28 | using __gnu_test::bidirectional_iterator_wrapper; | |
29 | ||
30 | namespace ranges = std::ranges; | |
31 | ||
32 | struct X | |
33 | { | |
34 | int i; | |
35 | int moved = 0; | |
36 | ||
37 | constexpr X(int a) : i(a) { } | |
38 | ||
39 | constexpr X(const X&) = delete; | |
40 | constexpr X& operator=(const X&) = delete; | |
41 | ||
42 | constexpr X(X&& other) | |
43 | { | |
44 | *this = std::move(other); | |
45 | } | |
46 | ||
47 | constexpr X& | |
48 | operator=(X&& other) | |
49 | { | |
50 | other.moved++; | |
51 | i = other.i; | |
52 | return *this; | |
53 | } | |
54 | ||
55 | friend constexpr bool | |
56 | operator==(const X& a, const X& b) | |
57 | { return a.i == b.i; } | |
58 | }; | |
59 | ||
60 | void | |
61 | test01() | |
62 | { | |
63 | { | |
64 | X x[7] = { 1, 2, 3, 4, 5, 6, 7 }; | |
65 | X y[7] = { 2, 4, 3, 5, 8, 9, 1 }; | |
66 | X z[7] = { 1, 2, 3, 4, 5, 6, 7 }; | |
67 | X w[7] = { 2, 4, 3, 5, 8, 9, 1 }; | |
68 | auto [x_iter, y_iter] = ranges::swap_ranges(x, y); | |
69 | VERIFY( ranges::equal(y, z) && x_iter == x+7 && y_iter == y+7 ); | |
70 | VERIFY( ranges::equal(x, w) ); | |
71 | } | |
72 | ||
73 | { | |
74 | int x[3] = { 1, 2, 3 }; | |
75 | int y[4] = { 2, 4, 6, 0 }; | |
76 | int z[3] = { 1, 2, 3 }; | |
77 | int w[3] = { 2, 4, 6 }; | |
78 | test_container<int, forward_iterator_wrapper> cx(x); | |
79 | test_container<int, forward_iterator_wrapper> cy(y); | |
80 | auto [x_iter, y_iter] = ranges::swap_ranges(cx, cy); | |
81 | VERIFY( ranges::equal(y, y+3, z, z+3) ); | |
82 | VERIFY( x_iter.ptr == x+3 && y_iter.ptr == y+3 ); | |
83 | VERIFY( y[3] == 0 ); | |
84 | VERIFY( ranges::equal(x, w) ); | |
85 | } | |
86 | ||
87 | { | |
88 | int x[3] = { 1, 2, 3 }; | |
89 | int y[4] = { 2, 4, 6, 0 }; | |
90 | int z[3] = { 1, 2, 3 }; | |
91 | int w[3] = { 2, 4, 6 }; | |
92 | test_range<int, input_iterator_wrapper> cx(x); | |
93 | test_range<int, input_iterator_wrapper> cy(y); | |
94 | auto [y_iter, x_iter] = ranges::swap_ranges(cy, cx); | |
95 | VERIFY( ranges::equal(y, y+3, z, z+3) ); | |
96 | VERIFY( x_iter.ptr == x+3 && y_iter.ptr == y+3 ); | |
97 | VERIFY( y[3] == 0 ); | |
98 | VERIFY( ranges::equal(x, w) ); | |
99 | } | |
100 | } | |
101 | ||
102 | constexpr bool | |
103 | test02() | |
104 | { | |
105 | bool ok = true; | |
106 | X x[7] = { 1, 2, 3, 4, 5, 6, 7 }; | |
107 | X y[7] = { 2, 4, 3, 5, 8, 9, 1 }; | |
108 | X z[7] = { 1, 2, 3, 4, 5, 6, 7 }; | |
109 | X w[7] = { 2, 4, 3, 5, 8, 9, 1 }; | |
110 | auto [x_iter, y_iter] = ranges::swap_ranges(x, y); | |
111 | ok &= ranges::equal(y, z) && x_iter == x+7 && y_iter == y+7; | |
112 | ok &= ranges::equal(x, w); | |
113 | return ok; | |
114 | } | |
115 | ||
116 | int | |
117 | main() | |
118 | { | |
119 | test01(); | |
120 | static_assert(test02()); | |
121 | } | |
122 | ||
123 |