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
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1 files changed, 51 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/23_containers/bitset/cons/dr396.cc b/libstdc++-v3/testsuite/23_containers/bitset/cons/dr396.cc
new file mode 100644
index 000000000..9fdb807d8
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/bitset/cons/dr396.cc
@@ -0,0 +1,51 @@
+// 2009-09-23  Paolo Carlini  <paolo.carlini@oracle.com>
+
+// Copyright (C) 2008, 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 <bitset>
+#include <testsuite_hooks.h>
+
+// DR 396. what are characters zero and one.
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::bitset<4> z1(std::string("bbab"), 0, std::string::npos, 'a', 'b');
+  VERIFY( z1.to_string('a', 'b') == "bbab" );
+
+  std::bitset<4> z2(std::string("11a1"), 0, std::string::npos, 'a');
+  VERIFY( z2.to_string('a') == "11a1" );
+
+  std::bitset<8> z3(std::string("babb"), 0, std::string::npos, 'a', 'b');
+  VERIFY( z3.to_string('a', 'b') == "aaaababb" );
+
+  std::bitset<8> z4(std::string("1a11"), 0, std::string::npos, 'a');
+  VERIFY( z4.to_string('a') == "aaaa1a11" );
+
+  std::bitset<2> z5(std::string("bbab"), 0, std::string::npos, 'a', 'b');
+  VERIFY( z5.to_string('a', 'b') == "bb" );
+
+  std::bitset<2> z6(std::string("11a1"), 0, std::string::npos, 'a');
+  VERIFY( z6.to_string('a') == "11" );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}