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// Insert
35void test03()
36{
37  vector<int> v(10, 17);
38  v.reserve(30);
39
40  // Insert a single element
41  vector<int>::iterator before = v.begin() + 6;
42  vector<int>::iterator at = before + 1;
43  vector<int>::iterator after = at;
44  at = v.insert(at, 42);
45  VERIFY(before._M_dereferenceable());
46  VERIFY(at._M_dereferenceable());
47  VERIFY(after._M_singular());
48
49  // Insert multiple copies
50  before = v.begin() + 6;
51  at = before + 1;
52  v.insert(at, 3, 42);
53  VERIFY(before._M_dereferenceable());
54  VERIFY(at._M_singular());
55
56  // Insert iterator range
57  static int data[] = { 2, 3, 5, 7 };
58  before = v.begin() + 6;
59  at = before + 1;
60  v.insert(at, &data[0], &data[0] + 4);
61  VERIFY(before._M_dereferenceable());
62  VERIFY(at._M_singular());
63
64  // Insert with reallocation
65  before = v.begin() + 6;
66  at = before + 1;
67  v.insert(at, 30, 17);
68  VERIFY(before._M_singular());
69  VERIFY(at._M_singular());
70
71  // Single insert with reallocation
72  vector<int> v2;
73  v2.reserve(100);
74  at = v2.begin();
75  v2.insert(at, 100, 17);
76  at = v2.end() - 1;
77  before = v2.begin();
78  VERIFY(at._M_dereferenceable());
79  VERIFY(before._M_dereferenceable());
80  at = v2.insert(at, 42);
81  VERIFY(at._M_dereferenceable());
82  VERIFY(before._M_singular());
83}
84
85int main()
86{
87  test03();
88  return 0;
89}
90