--- /dev/null
+// 2003-05-20 Paolo Carlini <pcarlini@unitus.it>
+
+// Copyright (C) 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// 27.8.1.3 filebuf member functions
+// @require@ %-*.tst %-*.txt
+// @diff@ %-*.tst %-*.txt
+
+// Test that upon filebuf::close() 27.8.1.1,3 is enforced.
+
+#include <fstream>
+#include <testsuite_hooks.h>
+
+const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
+const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create
+
+bool overflow_called;
+bool underflow_called;
+bool uflow_called;
+
+class Close_filebuf : public std::filebuf
+{
+public:
+ int_type overflow(int_type c)
+ {
+ overflow_called = true;
+ return std::filebuf::overflow(c);
+ }
+
+ int_type underflow()
+ {
+ underflow_called = true;
+ return std::filebuf::underflow();
+ }
+
+ int_type uflow()
+ {
+ uflow_called = true;
+ return std::filebuf::uflow();
+ }
+};
+
+void test_05()
+{
+ bool test = true;
+
+ Close_filebuf fb_01, fb_02;
+ char buffer[] = "xxxxxxxxxx";
+
+ // 'in'
+ fb_01.open(name_01, std::ios_base::in);
+ fb_01.sgetc();
+
+ fb_01.close();
+
+ underflow_called = false;
+ fb_01.sgetc();
+ VERIFY( underflow_called == true );
+
+ uflow_called = false;
+ fb_01.sbumpc();
+ VERIFY( uflow_called == true );
+
+ uflow_called = false;
+ fb_01.snextc();
+ VERIFY( uflow_called == true );
+
+ uflow_called = false;
+ fb_01.sgetn(buffer, sizeof(buffer));
+ VERIFY( uflow_called == true );
+
+ // 'out'
+ fb_02.open(name_02, std::ios_base::out);
+
+ fb_02.close();
+
+ overflow_called = false;
+ fb_02.sputc('T');
+ VERIFY( overflow_called == true );
+
+ overflow_called = false;
+ fb_02.sputn(buffer, sizeof(buffer));
+ VERIFY( overflow_called == true );
+}
+
+int
+main()
+{
+ test_05();
+ return 0;
+}