| // Vector iterator invalidation tests |
| |
| // Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // We need to be pedantic about reallocations for this testcase to be correct. |
| // { dg-options "-D_GLIBCXX_DEBUG_PEDANTIC" } |
| |
| #ifndef _GLIBCXX_DEBUG_PEDANTIC |
| # define _GLIBCXX_DEBUG_PEDANTIC 1 |
| #endif |
| |
| #include <debug/vector> |
| #include <testsuite_hooks.h> |
| |
| using __gnu_debug::vector; |
| |
| bool test = true; |
| |
| // Resize |
| void test02() |
| { |
| vector<int> v(10, 17); |
| v.reserve(20); |
| |
| vector<int>::iterator before = v.begin() + 6; |
| vector<int>::iterator at = before + 1; |
| vector<int>::iterator after = at + 1; |
| |
| // Shrink |
| v.resize(7); |
| VERIFY(before._M_dereferenceable()); |
| VERIFY(at._M_singular()); |
| VERIFY(after._M_singular()); |
| |
| // Grow, without reallocation |
| before = v.begin() + 6; |
| v.resize(17); |
| VERIFY(before._M_dereferenceable()); |
| |
| // Grow, with reallocation |
| v.resize(42); |
| VERIFY(before._M_singular()); |
| } |
| |
| int main() |
| { |
| test02(); |
| return 0; |
| } |