--- /dev/null
+// 1999-11-10 bkoz
+
+// Copyright (C) 1999, 2003, 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/>.
+
+// 27.4.2.6 ios_base callbacks
+
+#include <string>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+const std::string str01("the nubians of plutonia");
+std::string str02;
+
+void
+callb01(std::ios_base::event, std::ios_base&, int)
+{ str02 += "the nubians"; }
+
+void
+callb02(std::ios_base::event, std::ios_base&, int)
+{ str02 += " of "; }
+
+void
+callb03(std::ios_base::event, std::ios_base&, int)
+{ str02 += "plutonia"; }
+
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+ std::locale loc("C");
+ std::stringbuf strbuf01;
+ std::ios ios01(&strbuf01);
+
+ ios01.register_callback(callb03, 1);
+ ios01.register_callback(callb02, 1);
+ ios01.register_callback(callb01, 1);
+ ios01.imbue(loc);
+ VERIFY( str01 == str02 );
+}
+
+
+int main(void)
+{
+ test01();
+ return 0;
+}
+