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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4 files changed, 188 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/26_numerics/accumulate/1.cc b/libstdc++-v3/testsuite/26_numerics/accumulate/1.cc
new file mode 100644
index 000000000..a5cbe71b4
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/accumulate/1.cc
@@ -0,0 +1,54 @@
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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/>.
+
+// 26.4.1 [lib.accumulate]
+
+#include <numeric>
+#include <testsuite_hooks.h>
+
+int A[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+const int NA = sizeof(A) / sizeof(int);
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  int res = std::accumulate(A, A + NA, 11);
+  VERIFY( res == 66 );
+}
+
+bool B[] = {true, false, true, true, false, true, false, true, true, false};
+const int NB = sizeof(B) / sizeof(bool);
+
+void
+test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  int res = std::accumulate(B, B + NB, 100);
+  VERIFY( res == 106 );
+}
+
+int
+main()
+{
+  test01();
+  test02();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc b/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc
new file mode 100644
index 000000000..450382c3c
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/accumulate/48750.cc
@@ -0,0 +1,70 @@
+// Copyright (C) 2011 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 <vector> 
+#include <numeric>
+
+class NaturalParameters
+{
+public:
+
+  NaturalParameters()
+  : m_data(2)
+  {  }
+
+  std::vector<double>::const_iterator
+  begin() const
+  { return m_data.begin(); }
+
+  std::vector<double>::const_iterator
+  end() const
+  { return m_data.begin(); }
+
+  NaturalParameters& 
+  operator+=(const NaturalParameters&)
+  { return *this; }
+
+private:
+  std::vector<double> m_data;
+};
+
+inline
+NaturalParameters
+operator+(const NaturalParameters& a, const NaturalParameters& b)
+{
+  NaturalParameters tmp = a;
+  return tmp += b;
+}
+
+// libstdc++/48750
+void test01()
+{
+  // Used to fail in parallel-mode with a segfault.
+  for (std::size_t i = 0; i < 1000; ++i)
+    {
+      std::vector<NaturalParameters> ChildrenNP(1000);
+      NaturalParameters init;
+      NaturalParameters NP = std::accumulate(ChildrenNP.begin(),
+					     ChildrenNP.end(), init); 
+    }
+}
+
+int main()
+{
+  test01();
+  return 0;    
+}
diff --git a/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/2.cc b/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/2.cc
new file mode 100644
index 000000000..01082025a
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/2.cc
@@ -0,0 +1,32 @@
+// { dg-do compile }
+
+// 2007-09-20 Benjamin Kosnik <bkoz@redhat.com>
+
+// Copyright (C) 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/>.
+
+
+#include <numeric>
+#include <testsuite_api.h>
+
+namespace std
+{
+  typedef __gnu_test::NonDefaultConstructible 	value_type;
+  typedef value_type* 		iterator_type;
+
+  template value_type accumulate(iterator_type, iterator_type, value_type);
+} 
diff --git a/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/pod.cc b/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/pod.cc
new file mode 100644
index 000000000..f9403c8b6
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/accumulate/requirements/explicit_instantiation/pod.cc
@@ -0,0 +1,32 @@
+// { dg-do compile }
+
+// 2007-09-20 Benjamin Kosnik <bkoz@redhat.com>
+
+// Copyright (C) 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/>.
+
+
+#include <numeric>
+#include <testsuite_character.h>
+
+namespace std
+{
+  typedef __gnu_test::pod_int 	value_type;
+  typedef value_type* 		iterator_type;
+
+  template value_type accumulate(iterator_type, iterator_type, value_type);
+}