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// size_type capacity() const;
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> v;
23 assert(v.capacity() == 0);
24 assert(is_contiguous_container_asan_correct(v));
25 }
26 {
27 std::vector<int> v(100);
28 assert(v.capacity() == 100);
29 v.push_back(x: 0);
30 assert(v.capacity() > 101);
31 assert(is_contiguous_container_asan_correct(v));
32 }
33#if TEST_STD_VER >= 11
34 {
35 std::vector<int, min_allocator<int>> v;
36 assert(v.capacity() == 0);
37 assert(is_contiguous_container_asan_correct(v));
38 }
39 {
40 std::vector<int, min_allocator<int>> v(100);
41 assert(v.capacity() == 100);
42 v.push_back(0);
43 assert(v.capacity() > 101);
44 assert(is_contiguous_container_asan_correct(v));
45 }
46#endif
47
48 return true;
49}
50
51int main(int, char**) {
52 tests();
53#if TEST_STD_VER > 17
54 static_assert(tests());
55#endif
56 return 0;
57}
58

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