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[official-gcc.git] / old-autovect-branch / libstdc++-v3 / testsuite / 23_containers / vector / invalidation / 3.cc
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1 // Vector iterator invalidation tests
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.
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.
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.
21 // We need to be pedantic about reallocations for this testcase to be correct.
22 // { dg-options "-D_GLIBCXX_DEBUG_PEDANTIC" }
24 #ifndef _GLIBCXX_DEBUG_PEDANTIC
25 # define _GLIBCXX_DEBUG_PEDANTIC 1
26 #endif
28 #include <debug/vector>
29 #include <testsuite_hooks.h>
31 using __gnu_debug::vector;
33 bool test = true;
35 // Insert
36 void test03()
38 vector<int> v(10, 17);
39 v.reserve(30);
41 // Insert a single element
42 vector<int>::iterator before = v.begin() + 6;
43 vector<int>::iterator at = before + 1;
44 vector<int>::iterator after = at;
45 at = v.insert(at, 42);
46 VERIFY(before._M_dereferenceable());
47 VERIFY(at._M_dereferenceable());
48 VERIFY(after._M_singular());
50 // Insert multiple copies
51 before = v.begin() + 6;
52 at = before + 1;
53 v.insert(at, 3, 42);
54 VERIFY(before._M_dereferenceable());
55 VERIFY(at._M_singular());
57 // Insert iterator range
58 static int data[] = { 2, 3, 5, 7 };
59 before = v.begin() + 6;
60 at = before + 1;
61 v.insert(at, &data[0], &data[0] + 4);
62 VERIFY(before._M_dereferenceable());
63 VERIFY(at._M_singular());
65 // Insert with reallocation
66 before = v.begin() + 6;
67 at = before + 1;
68 v.insert(at, 30, 17);
69 VERIFY(before._M_singular());
70 VERIFY(at._M_singular());
72 // Single insert with reallocation
73 vector<int> v2;
74 v2.reserve(100);
75 at = v2.begin();
76 v2.insert(at, 100, 17);
77 at = v2.end() - 1;
78 before = v2.begin();
79 VERIFY(at._M_dereferenceable());
80 VERIFY(before._M_dereferenceable());
81 at = v2.insert(at, 42);
82 VERIFY(at._M_dereferenceable());
83 VERIFY(before._M_singular());
86 int main()
88 test03();
89 return 0;