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// vector<bool>
11
12// void resize(size_type sz);
13
14#include <vector>
15#include <cassert>
16
17#include "test_macros.h"
18#include "min_allocator.h"
19
20TEST_CONSTEXPR_CXX20 bool tests()
21{
22 {
23 std::vector<bool> v(100);
24 v.resize(new_size: 50);
25 assert(v.size() == 50);
26 assert(v.capacity() >= 100);
27 v.resize(new_size: 200);
28 assert(v.size() == 200);
29 assert(v.capacity() >= 200);
30 v.reserve(n: 400);
31 v.resize(new_size: 300); // check the case when resizing and we already have room
32 assert(v.size() == 300);
33 assert(v.capacity() >= 400);
34 }
35#if TEST_STD_VER >= 11
36 {
37 std::vector<bool, explicit_allocator<bool>> v;
38 v.resize(10);
39 assert(v.size() == 10);
40 assert(v.capacity() >= 10);
41 }
42 {
43 std::vector<bool, min_allocator<bool>> v(100);
44 v.resize(50);
45 assert(v.size() == 50);
46 assert(v.capacity() >= 100);
47 v.resize(200);
48 assert(v.size() == 200);
49 assert(v.capacity() >= 200);
50 v.reserve(400);
51 v.resize(300); // check the case when resizing and we already have room
52 assert(v.size() == 300);
53 assert(v.capacity() >= 400);
54 }
55#endif
56
57 return true;
58}
59
60int main(int, char**)
61{
62 tests();
63#if TEST_STD_VER > 17
64 static_assert(tests());
65#endif
66 return 0;
67}
68

source code of libcxx/test/std/containers/sequences/vector.bool/resize_size.pass.cpp