1// { dg-options "-std=gnu++11" }
2
3// 2012-01-19  Jakub Jelinek  <jakub@redhat.com>
4//
5// Copyright (C) 2012-2015 Free Software Foundation, Inc.
6//
7// This file is part of the GNU ISO C++ Library.  This library is free
8// software; you can redistribute it and/or modify it under the
9// terms of the GNU General Public License as published by the
10// Free Software Foundation; either version 3, or (at your option)
11// any later version.
12//
13// This library is distributed in the hope that it will be useful,
14// but WITHOUT ANY WARRANTY; without even the implied warranty of
15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16// GNU General Public License for more details.
17//
18// You should have received a copy of the GNU General Public License along
19// with this library; see the file COPYING3.  If not see
20// <http://www.gnu.org/licenses/>.
21
22#include <unordered_map>
23#include <testsuite_hooks.h>
24
25// libstdc++/51845
26void test01()
27{
28  bool test __attribute__((unused)) = true;
29
30  typedef std::unordered_multimap<int, int> Mmap;
31  typedef Mmap::iterator       iterator;
32  typedef Mmap::const_iterator const_iterator;
33  typedef Mmap::value_type     value_type;
34
35  Mmap mm1;
36
37  mm1.insert(value_type(11135, 1));
38  mm1.insert(value_type(11135, 17082));
39  mm1.insert(value_type(9644, 24135));
40  mm1.insert(value_type(9644, 9644));
41  mm1.insert(value_type(13984, 19841));
42  mm1.insert(value_type(9644, 1982));
43  mm1.insert(value_type(13984, 1945));
44  mm1.insert(value_type(7, 1982));
45  mm1.insert(value_type(7, 1945));
46  VERIFY( mm1.size() == 9 );
47
48  iterator it1 = mm1.begin();
49  ++it1;
50  iterator it2 = it1;
51  ++it2;
52  ++it2;
53  iterator it3 = mm1.erase(it1, it2);
54  VERIFY( mm1.size() == 7 );
55  VERIFY( it3 == it2 );
56  VERIFY( *it3 == *it2 );
57
58  const_iterator it4 = mm1.begin();
59  ++it4;
60  const_iterator it5 = it4;
61  ++it5;
62  const_iterator it6 = mm1.erase(it4);
63  VERIFY( mm1.size() == 6 );
64  VERIFY( it6 == it5 );
65  VERIFY( *it6 == *it5 );
66}
67
68int main()
69{
70  test01();
71  return 0;
72}
73