--- /dev/null
+// 1999-11-15 Kevin Ediger <kediger@licor.com>
+// test the floating point inserters (facet num_put)
+
+// Copyright (C) 1999, 2002, 2003, 2005, 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 <iomanip>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/3655
+int
+test04()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ stringbuf strbuf1, strbuf2;
+ ostream o1(&strbuf1), o2(&strbuf2);
+
+ o1 << hex << showbase << setw(6) << internal << 0xff;
+ VERIFY( strbuf1.str() == "0x ff" );
+
+ // ... vs internal-adjusted const char*-type objects
+ o2 << hex << showbase << setw(6) << internal << "0xff";
+ VERIFY( strbuf2.str() == " 0xff" );
+
+ return 0;
+}
+
+int
+main()
+{
+ test04();
+ return 0;
+}