--- /dev/null
+// Copyright (C) 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/>.
+
+// 24.3.4 Iterator operations
+
+#include <iterator>
+#include <list>
+#include <testsuite_hooks.h>
+
+//libstdc++/26020
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ list<int> ll;
+ ll.push_back(1);
+
+ list<int>::iterator it(ll.begin());
+
+ advance(it, 0.5);
+
+ VERIFY( it == ll.begin() );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}