--- /dev/null
+// Multiset iterator invalidation tests
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2009 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 3, 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 COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <debug/set>
+#include <iterator>
+#include <testsuite_hooks.h>
+
+using __gnu_debug::multiset;
+using std::advance;
+
+bool test = true;
+
+// Assignment
+void 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;
+}