1// Multiset iterator invalidation tests
2
3// Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21#include <debug/set>
22#include <iterator>
23#include <testsuite_hooks.h>
24
25using __gnu_debug::multiset;
26using std::advance;
27
28// Erase
29void test02()
30{
31  bool test __attribute__((unused)) = true;
32  multiset<int> v;
33  for (int i = 0; i < 20; ++i)
34    v.insert(i);
35
36  // Single element erase (middle)
37  multiset<int>::iterator before = v.begin();
38  multiset<int>::iterator at = before;
39  advance(at, 3);
40  multiset<int>::iterator after = at;
41  ++after;
42  v.erase(at);
43  VERIFY(before._M_dereferenceable());
44  VERIFY(at._M_singular());
45  VERIFY(after._M_dereferenceable());
46
47  // Multiple element erase
48  before = v.begin();
49  at = before;
50  advance(at, 3);
51  after = at;
52  advance(after, 4);
53  v.erase(at, after);
54  VERIFY(before._M_dereferenceable());
55  VERIFY(at._M_singular());
56
57  // clear()
58  before = v.begin();
59  multiset<int>::iterator finish = v.end();
60  VERIFY(before._M_dereferenceable());
61  v.clear();
62  VERIFY(before._M_singular());
63  VERIFY(!finish._M_singular() && !finish._M_dereferenceable());
64}
65
66int main()
67{
68  test02();
69  return 0;
70}
71