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// <vector>
10
11// void swap(vector& x);
12
13#include <vector>
14#include <cassert>
15
16#include "test_macros.h"
17#include "min_allocator.h"
18#include "asan_testing.h"
19
20TEST_CONSTEXPR_CXX20 bool tests() {
21 {
22 std::vector<int> v1(100);
23 std::vector<int> v2(200);
24 assert(is_contiguous_container_asan_correct(v1));
25 assert(is_contiguous_container_asan_correct(v2));
26 v1.swap(x&: v2);
27 assert(v1.size() == 200);
28 assert(v1.capacity() == 200);
29 assert(is_contiguous_container_asan_correct(v1));
30 assert(v2.size() == 100);
31 assert(v2.capacity() == 100);
32 assert(is_contiguous_container_asan_correct(v2));
33 }
34#if TEST_STD_VER >= 11
35 {
36 std::vector<int, min_allocator<int>> v1(100);
37 std::vector<int, min_allocator<int>> v2(200);
38 assert(is_contiguous_container_asan_correct(v1));
39 assert(is_contiguous_container_asan_correct(v2));
40 v1.swap(v2);
41 assert(v1.size() == 200);
42 assert(v1.capacity() == 200);
43 assert(is_contiguous_container_asan_correct(v1));
44 assert(v2.size() == 100);
45 assert(v2.capacity() == 100);
46 assert(is_contiguous_container_asan_correct(v2));
47 }
48 {
49 std::vector<int, safe_allocator<int>> v1(100);
50 std::vector<int, safe_allocator<int>> v2(200);
51 assert(is_contiguous_container_asan_correct(v1));
52 assert(is_contiguous_container_asan_correct(v2));
53 v1.swap(v2);
54 assert(v1.size() == 200);
55 assert(v1.capacity() == 200);
56 assert(is_contiguous_container_asan_correct(v1));
57 assert(v2.size() == 100);
58 assert(v2.capacity() == 100);
59 assert(is_contiguous_container_asan_correct(v2));
60 }
61#endif
62
63 return true;
64}
65
66int main(int, char**)
67{
68 tests();
69#if TEST_STD_VER > 17
70 static_assert(tests());
71#endif
72 return 0;
73}
74

source code of libcxx/test/std/containers/sequences/vector/vector.capacity/swap.pass.cpp