Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_filebuf / in_avail / char / 9701-3.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/in_avail/char/9701-3.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/in_avail/char/9701-3.cc
new file mode 100644 (file)
index 0000000..b68f656
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/in_avail/char/9701-3.cc
@@ -0,0 +1,60 @@
+// Copyright (C) 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/>.
+
+// 27.5.2.2.3 Get area
+
+// { dg-require-fileio "" }
+
+#include <fstream>
+#include <testsuite_hooks.h>
+
+class Derived_fbuf : public std::filebuf
+{
+public:
+  const char_type* pub_egptr() const
+  { return egptr(); }
+
+  const char_type* pub_gptr() const
+  { return gptr(); }
+};
+
+// libstdc++/9701 (in_avail)
+void test01()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+  const char* name = "tmp_file1";
+
+  Derived_fbuf df2;
+  df2.open(name, ios_base::in | ios_base::out | ios_base::trunc);
+
+  df2.sputn("Comomoc", 7);
+
+  df2.pubseekoff(0, ios_base::beg);
+  df2.sbumpc();
+  df2.sputbackc('t');
+
+  VERIFY( df2.pub_gptr() < df2.pub_egptr() );
+  VERIFY( df2.in_avail() == df2.pub_egptr() - df2.pub_gptr() );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}