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// class vector
12
13// size_type size() const noexcept;
14
15#include <vector>
16#include <cassert>
17
18#include "test_macros.h"
19#include "min_allocator.h"
20
21TEST_CONSTEXPR_CXX20 bool tests()
22{
23 {
24 typedef std::vector<bool> C;
25 C c;
26 ASSERT_NOEXCEPT(c.size());
27 assert(c.size() == 0);
28 c.push_back(x: false);
29 assert(c.size() == 1);
30 c.push_back(x: true);
31 assert(c.size() == 2);
32 c.push_back(x: false);
33 assert(c.size() == 3);
34 c.erase(position: c.begin());
35 assert(c.size() == 2);
36 c.erase(position: c.begin());
37 assert(c.size() == 1);
38 c.erase(position: c.begin());
39 assert(c.size() == 0);
40 }
41#if TEST_STD_VER >= 11
42 {
43 typedef std::vector<bool, min_allocator<bool>> C;
44 C c;
45 ASSERT_NOEXCEPT(c.size());
46 assert(c.size() == 0);
47 c.push_back(false);
48 assert(c.size() == 1);
49 c.push_back(true);
50 assert(c.size() == 2);
51 c.push_back(false);
52 assert(c.size() == 3);
53 c.erase(c.begin());
54 assert(c.size() == 2);
55 c.erase(c.begin());
56 assert(c.size() == 1);
57 c.erase(c.begin());
58 assert(c.size() == 0);
59 }
60#endif
61
62 return true;
63}
64
65int main(int, char**)
66{
67 tests();
68#if TEST_STD_VER > 17
69 static_assert(tests());
70#endif
71 return 0;
72}
73

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