xref: /llvm-project/libcxx/test/std/containers/sequences/vector/vector.capacity/capacity.pass.cpp (revision 98d3d5b5da66e3cf7807c23a0294280bb796466b)
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 
tests()20 TEST_CONSTEXPR_CXX20 bool tests()
21 {
22     {
23         std::vector<int> v;
24         assert(v.capacity() == 0);
25         assert(is_contiguous_container_asan_correct(v));
26     }
27     {
28         std::vector<int> v(100);
29         assert(v.capacity() == 100);
30         v.push_back(0);
31         assert(v.capacity() > 101);
32         assert(is_contiguous_container_asan_correct(v));
33     }
34 #if TEST_STD_VER >= 11
35     {
36         std::vector<int, min_allocator<int>> v;
37         assert(v.capacity() == 0);
38         assert(is_contiguous_container_asan_correct(v));
39     }
40     {
41         std::vector<int, min_allocator<int>> v(100);
42         assert(v.capacity() == 100);
43         v.push_back(0);
44         assert(v.capacity() > 101);
45         assert(is_contiguous_container_asan_correct(v));
46     }
47 #endif
48 
49     return true;
50 }
51 
main(int,char **)52 int main(int, char**)
53 {
54     tests();
55 #if TEST_STD_VER > 17
56     static_assert(tests());
57 #endif
58     return 0;
59 }
60