1// Vector iterator invalidation tests
2
3// Copyright (C) 2003-2015 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 3, 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 COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20// We need to be pedantic about reallocations for this testcase to be correct.
21// { dg-options "-D_GLIBCXX_DEBUG_PEDANTIC" }
22
23#ifndef _GLIBCXX_DEBUG_PEDANTIC
24#  define _GLIBCXX_DEBUG_PEDANTIC 1
25#endif
26
27#include <debug/vector>
28#include <testsuite_hooks.h>
29
30using __gnu_debug::vector;
31
32bool test = true;
33
34// Erase
35void test04()
36{
37  vector<int> v(20, 42);
38
39  // Single element erase
40  vector<int>::iterator before = v.begin();
41  vector<int>::iterator at = before + 3;
42  vector<int>::iterator after = at;
43  at = v.erase(at);
44  VERIFY(before._M_dereferenceable());
45  VERIFY(at._M_dereferenceable());
46  VERIFY(after._M_singular());
47
48  // Multiple element erase
49  before = v.begin();
50  at = before + 3;
51  v.erase(at, at + 3);
52  VERIFY(before._M_dereferenceable());
53  VERIFY(at._M_singular());
54
55  // clear()
56  before = v.begin();
57  VERIFY(before._M_dereferenceable());
58  v.clear();
59  VERIFY(before._M_singular());
60}
61
62int main()
63{
64  test04();
65  return 0;
66}
67