1// Copyright (C) 2014-2015 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 3, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18// { dg-options "-std=gnu++11" }
19
20#include <unordered_set>
21#include <testsuite_hooks.h>
22
23void test01()
24{
25  bool test __attribute__((unused)) = true;
26  std::unordered_set<int> us1 { 0, 1 };
27  {
28    std::unordered_set<int> us2(std::move(us1));
29
30    us1.swap(us2);
31
32    VERIFY( us1.find(0) != us1.end() );
33
34    us1.insert(2);
35
36    VERIFY( us1.size() == 3 );
37
38    us2.swap(us1);
39
40    VERIFY( us2.size() == 3 );
41    VERIFY( us2.find(2) != us2.end() );
42
43    us1 = { 3, 4, 5 };
44
45    VERIFY( us1.size() == 3 );
46    VERIFY( us1.bucket_count() >= 3 );
47
48    std::unordered_set<int> us3(std::move(us1));
49    us3 = std::move(us2);
50
51    us1.swap(us2);
52
53    VERIFY( us1.empty() );
54    VERIFY( us2.empty() );
55  }
56
57  us1 = { 0, 1 };
58  VERIFY( us1.size() == 2 );
59}
60
61int main()
62{
63  test01();
64  return 0;
65}
66