xref: /llvm-project/libcxx/test/std/containers/container.adaptors/queue/queue.defn/push.pass.cpp (revision 7fc6a55688c816f5fc1a5481ae7af25be7500356)
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 // <queue>
10 
11 // void push(const value_type& v);
12 
13 #include <queue>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 
main(int,char **)18 int main(int, char**)
19 {
20     std::queue<int> q;
21     q.push(1);
22     assert(q.size() == 1);
23     assert(q.front() == 1);
24     assert(q.back() == 1);
25     q.push(2);
26     assert(q.size() == 2);
27     assert(q.front() == 1);
28     assert(q.back() == 2);
29     q.push(3);
30     assert(q.size() == 3);
31     assert(q.front() == 1);
32     assert(q.back() == 3);
33 
34   return 0;
35 }
36