obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

2 files changed, 156 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-1.cc
new file mode 100644
index 000000000..5aa31d78f
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-1.cc
@@ -0,0 +1,98 @@
+// { dg-require-fork "" }
+// { dg-require-mkfifo "" }
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fstream>
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+// libstdc++/9533
+void test_01()
+{
+  using namespace std;
+  using namespace __gnu_test;
+  bool test __attribute__((unused)) = true;
+  const char* name = "tmp_fifo1";
+
+  const int count = 10000;
+
+  signal(SIGPIPE, SIG_IGN);
+  unlink(name);
+  
+  if (0 != mkfifo(name, S_IRWXU))
+    {
+      VERIFY( false );
+    }
+  
+  int fval = fork();
+  if (fval == -1)
+    {
+      unlink(name);
+      VERIFY( false );
+    }
+  else if (fval == 0)
+    {
+      filebuf ofbuf;
+      ofbuf.open(name, ios_base::in|ios_base::out);
+      VERIFY( ofbuf.is_open() );
+      sleep(1);
+
+      for (int i = 0; i < count; ++i)
+	ofbuf.sputc(i % 100);
+
+      ofbuf.pubsync();
+      sleep(1);
+      ofbuf.close();
+      exit(0);
+    }
+
+  filebuf ifbuf;
+  ifbuf.open(name, ios_base::in);
+  VERIFY( ifbuf.is_open() );
+
+  for (int j = 0; j < count; ++j)
+    {
+      filebuf::int_type c1 = ifbuf.sbumpc();
+      VERIFY( c1 == j % 100 );
+    }
+
+  filebuf::int_type c6 = ifbuf.sbumpc();
+  VERIFY( c6 == filebuf::traits_type::eof() );
+
+  sleep(2);
+  ifbuf.close();
+
+  unlink(name);
+}
+
+int
+main() 
+{
+  test_01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-2.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-2.cc
new file mode 100644
index 000000000..0cba3a8f6
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-2.cc
@@ -0,0 +1,58 @@
+// 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <fstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/9533
+void test_02()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;  
+  const char* name = "tmp_file1";
+  const char* strlit = "0123456789";
+  
+  filebuf fb;
+
+  int written = 0;
+  fb.open(name, ios_base::out | ios_base::trunc);	
+  for (int i = 0; i < BUFSIZ; ++i)
+    written += fb.sputn(strlit, 10);
+  fb.close();
+  
+  int read = 0;
+  int n = 0;
+  char buf[10];
+  fb.open(name, ios_base::in);
+  do
+    {
+      n = fb.sgetn(buf, sizeof(buf));
+      read += n;
+    }
+  while (n);
+
+  VERIFY( read == written );
+}
+
+int
+main()
+{
+  test_02();
+  return 0;
+}