xref: /llvm-project/libcxx/test/std/containers/sequences/list/list.capacity/size.pass.cpp (revision 2df59c50688c122bbcae7467d3eaf862c3ea3088)
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 // <list>
10 
11 // class list
12 
13 // size_type size() const noexcept;
14 
15 #include <list>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "min_allocator.h"
20 
main(int,char **)21 int main(int, char**)
22 {
23     {
24     typedef std::list<int> C;
25     C c;
26     ASSERT_NOEXCEPT(c.size());
27     assert(c.size() == 0);
28     c.push_back(C::value_type(2));
29     assert(c.size() == 1);
30     c.push_back(C::value_type(1));
31     assert(c.size() == 2);
32     c.push_back(C::value_type(3));
33     assert(c.size() == 3);
34     c.erase(c.begin());
35     assert(c.size() == 2);
36     c.erase(c.begin());
37     assert(c.size() == 1);
38     c.erase(c.begin());
39     assert(c.size() == 0);
40     }
41 #if TEST_STD_VER >= 11
42     {
43     typedef std::list<int, min_allocator<int>> C;
44     C c;
45     ASSERT_NOEXCEPT(c.size());
46     assert(c.size() == 0);
47     c.push_back(C::value_type(2));
48     assert(c.size() == 1);
49     c.push_back(C::value_type(1));
50     assert(c.size() == 2);
51     c.push_back(C::value_type(3));
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 0;
63 }
64