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// Multiset iterator invalidation tests// Copyright (C) 2003, 2004, 2005 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.#include <debug/set>#include <iterator>#include <testsuite_hooks.h>using __gnu_debug::multiset;using std::advance;bool test = true;// Assignmentvoid test01(){  multiset<int> v1;  multiset<int> v2;  v1.insert(17);  multiset<int>::iterator start = v1.begin();  multiset<int>::iterator finish = v1.end();  VERIFY(start._M_dereferenceable());  VERIFY(!finish._M_dereferenceable() && !finish._M_singular());  v1 = v2;  VERIFY(start._M_singular());  VERIFY(!finish._M_dereferenceable() && !finish._M_singular());}int main(){  test01();  return 0;}

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