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 reserve(size_type n);
12 
13 #include <vector>
14 #include <cassert>
15 #include "test_macros.h"
16 #include "test_allocator.h"
17 #include "min_allocator.h"
18 #include "asan_testing.h"
19 
20 int main(int, char**)
21 {
22     {
23         std::vector<int> v;
24         v.reserve(10);
25         assert(v.capacity() >= 10);
26         assert(is_contiguous_container_asan_correct(v));
27     }
28     {
29         std::vector<int> v(100);
30         assert(v.capacity() == 100);
31         v.reserve(50);
32         assert(v.size() == 100);
33         assert(v.capacity() == 100);
34         v.reserve(150);
35         assert(v.size() == 100);
36         assert(v.capacity() == 150);
37         assert(is_contiguous_container_asan_correct(v));
38     }
39     {
40         // Add 1 for implementations that dynamically allocate a container proxy.
41         std::vector<int, limited_allocator<int, 250 + 1> > v(100);
42         assert(v.capacity() == 100);
43         v.reserve(50);
44         assert(v.size() == 100);
45         assert(v.capacity() == 100);
46         v.reserve(150);
47         assert(v.size() == 100);
48         assert(v.capacity() == 150);
49         assert(is_contiguous_container_asan_correct(v));
50     }
51 #if TEST_STD_VER >= 11
52     {
53         std::vector<int, min_allocator<int>> v;
54         v.reserve(10);
55         assert(v.capacity() >= 10);
56         assert(is_contiguous_container_asan_correct(v));
57     }
58     {
59         std::vector<int, min_allocator<int>> v(100);
60         assert(v.capacity() == 100);
61         v.reserve(50);
62         assert(v.size() == 100);
63         assert(v.capacity() == 100);
64         v.reserve(150);
65         assert(v.size() == 100);
66         assert(v.capacity() == 150);
67         assert(is_contiguous_container_asan_correct(v));
68     }
69 #endif
70 
71   return 0;
72 }
73