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, 94 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/2.cc b/libstdc++-v3/testsuite/25_algorithms/unique/2.cc
new file mode 100644
index 000000000..cae1b1672
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/unique/2.cc
@@ -0,0 +1,94 @@
+// 2003-10-14  Paolo Carlini  <pcarlini@unitus.it>
+
+// Copyright (C) 2003, 2004, 2005, 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/>.
+
+// 25.2.8 [lib.alg.unique] Unique
+
+#include <list>
+#include <algorithm>
+#include <functional>
+#include <testsuite_hooks.h>
+
+const int T1[] = {1, 4, 4, 6, 1, 2, 2, 3, 1, 6, 6, 6, 5, 7, 5, 4, 4};
+const int T2[] = {1, 1, 1, 2, 2, 1, 1, 7, 6, 6, 7, 8, 8, 8, 8, 9, 9};
+const int N = sizeof(T1) / sizeof(int);
+
+const int A1[] = {1, 4, 6, 1, 2, 3, 1, 6, 5, 7, 5, 4};
+const int A2[] = {1, 4, 4, 6, 6, 6, 6, 7};
+const int A3[] = {1, 1, 1};
+
+const int B1[] = {1, 2, 1, 7, 6, 7, 8, 9};
+const int B2[] = {1, 1, 1, 2, 2, 7, 7, 8, 8, 8, 8, 9, 9};
+const int B3[] = {9, 9, 8, 8, 8, 8, 7, 6, 6, 1, 1, 1, 1, 1};
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  list<int>::iterator pos;
+
+  list<int> coll(T1, T1 + N);
+  pos = unique(coll.begin(), coll.end());
+  VERIFY( equal(coll.begin(), pos, A1) );
+
+  list<int> coll2(T2, T2 + N);
+  pos = unique(coll2.begin(), coll2.end());
+  VERIFY( equal(coll2.begin(), pos, B1) );
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  list<int>::iterator pos;
+
+  list<int> coll(T1, T1 + N);
+  pos = unique(coll.begin(), coll.end(), greater<int>());
+  VERIFY( equal(coll.begin(), pos, A2) );
+
+  list<int> coll2(T2, T2 + N);
+  pos = unique(coll2.begin(), coll2.end(), greater<int>());
+  VERIFY( equal(coll2.begin(), pos, B2) );
+}
+
+void test03()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  list<int>::iterator pos;
+
+  list<int> coll(T1, T1 + N);
+  pos = unique(coll.begin(), coll.end(), less<int>());
+  VERIFY( equal(coll.begin(), pos, A3) );
+
+  list<int> coll2(T2, T2 + N);
+  reverse(coll2.begin(), coll2.end());
+  pos = unique(coll2.begin(), coll2.end(), less<int>());
+  VERIFY( equal(coll2.begin(), pos, B3) );
+}
+
+int main()
+{
+  test01();
+  test02();
+  test03();
+  return 0;
+}