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.

31 files changed, 1443 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/moveable.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/moveable.cc
new file mode 100644
index 000000000..93ae4e30b
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/cons/moveable.cc
@@ -0,0 +1,43 @@
+// { dg-options "-std=gnu++0x" }
+
+// 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/>.
+
+
+// NOTE: This makes use of the fact that we know how moveable
+// is implemented on set (via swap). If the implementation changed
+// this test may begin to fail.
+
+#include <unordered_set>
+#include <utility>
+#include <testsuite_hooks.h>
+
+int main()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::unordered_multiset<int> a,b;
+  a.insert(2);
+  b.insert(1);
+  b = std::move(a);
+  VERIFY( b.find(2) != b.end() && a.find(1) == a.end() );
+
+  std::unordered_multiset<int> c(std::move(b));
+  VERIFY( c.find(2) != c.end() );
+  VERIFY( b.find(2) == b.end() );
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct1_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct1_neg.cc
new file mode 100644
index 000000000..7d8989074
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct1_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_construct1<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct2_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct2_neg.cc
new file mode 100644
index 000000000..ea6857aa2
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct2_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_construct2<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct3_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct3_neg.cc
new file mode 100644
index 000000000..20a465962
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct3_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_construct3<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct4_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct4_neg.cc
new file mode 100644
index 000000000..4fbb4fad6
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/construct4_neg.cc
@@ -0,0 +1,33 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <debug/unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_construct1<__gnu_debug::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert1_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert1_neg.cc
new file mode 100644
index 000000000..c65c6083d
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert1_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_insert1<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert2_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert2_neg.cc
new file mode 100644
index 000000000..6496624ee
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert2_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_insert2<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert3_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert3_neg.cc
new file mode 100644
index 000000000..b12fe5764
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert3_neg.cc
@@ -0,0 +1,34 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-require-debug-mode "" }
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_insert3<std::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert4_neg.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert4_neg.cc
new file mode 100644
index 000000000..0f2acea40
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/debug/insert4_neg.cc
@@ -0,0 +1,33 @@
+// Copyright (C) 2010 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/>.
+//
+// { dg-options "-std=gnu++0x" }
+// { dg-do run { xfail *-*-* } }
+
+#include <debug/unordered_set>
+#include <debug/checks.h>
+
+void test01()
+{
+  __gnu_test::check_insert1<__gnu_debug::unordered_multiset<int> >();
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/1.cc
new file mode 100644
index 000000000..327dc4bd0
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/1.cc
@@ -0,0 +1,129 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2010-02-10  Paolo Carlini  <paolo.carlini@oracle.com> 
+//
+// Copyright (C) 2010 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 <unordered_set>
+#include <string>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  
+  typedef std::unordered_multiset<std::string> Mset;
+  typedef Mset::iterator       iterator;
+  typedef Mset::const_iterator const_iterator;
+
+  Mset ms1;
+  
+  ms1.insert("because to why");
+  ms1.insert("the stockholm syndrome");
+  ms1.insert("a cereous night");
+  ms1.insert("eeilo");
+  ms1.insert("protean");
+  ms1.insert("the way you are when");
+  ms1.insert("tillsammans");
+  ms1.insert("umbra/penumbra");
+  ms1.insert("belonging (no longer mix)");
+  ms1.insert("one line behind");
+  ms1.insert("because to why");
+  VERIFY( ms1.size() == 11 );
+
+  VERIFY( ms1.erase("eeilo") == 1 );
+  VERIFY( ms1.size() == 10 );
+  iterator it1 = ms1.find("eeilo");
+  VERIFY( it1 == ms1.end() );
+
+  VERIFY( ms1.erase("tillsammans") == 1 );
+  VERIFY( ms1.size() == 9 );
+  iterator it2 = ms1.find("tillsammans");
+  VERIFY( it2 == ms1.end() );
+
+  // Must work (see DR 526)
+  iterator it3 = ms1.find("belonging (no longer mix)");
+  VERIFY( it3 != ms1.end() );
+  VERIFY( ms1.erase(*it3) == 1 );
+  VERIFY( ms1.size() == 8 );
+  it3 = ms1.find("belonging (no longer mix)");
+  VERIFY( it3 == ms1.end() );
+
+  VERIFY( !ms1.erase("abra") );
+  VERIFY( ms1.size() == 8 );
+
+  VERIFY( !ms1.erase("eeilo") );
+  VERIFY( ms1.size() == 8 );
+
+  VERIFY( ms1.erase("because to why") == 2 );
+  VERIFY( ms1.size() == 6 );
+  iterator it4 = ms1.find("because to why");
+  VERIFY( it4 == ms1.end() );
+
+  iterator it5 = ms1.find("umbra/penumbra");
+  iterator it6 = ms1.find("one line behind");
+  VERIFY( it5 != ms1.end() );
+  VERIFY( it6 != ms1.end() );
+
+  VERIFY( ms1.find("the stockholm syndrome") != ms1.end() );
+  VERIFY( ms1.find("a cereous night") != ms1.end() );
+  VERIFY( ms1.find("the way you are when") != ms1.end() );
+  VERIFY( ms1.find("a cereous night") != ms1.end() );
+
+  VERIFY( ms1.erase(*it5) == 1 );
+  VERIFY( ms1.size() == 5 );
+  it5 = ms1.find("umbra/penumbra");
+  VERIFY( it5 == ms1.end() );
+
+  VERIFY( ms1.erase(*it6) == 1 );
+  VERIFY( ms1.size() == 4 );
+  it6 = ms1.find("one line behind");
+  VERIFY( it6 == ms1.end() );
+
+  iterator it7 = ms1.begin();
+  iterator it8 = it7;
+  ++it8;
+  iterator it9 = it8;
+  ++it9;
+
+  VERIFY( ms1.erase(*it8) == 1 );
+  VERIFY( ms1.size() == 3 );
+  VERIFY( ++it7 == it9 );
+
+  iterator it10 = it9;
+  ++it10;
+  iterator it11 = it10;
+
+  VERIFY( ms1.erase(*it9) == 1 );
+  VERIFY( ms1.size() == 2 );
+  VERIFY( ++it10 == ms1.end() );
+
+  VERIFY( ms1.erase(ms1.begin()) != ms1.end() );  
+  VERIFY( ms1.size() == 1 );
+  VERIFY( ms1.begin() == it11 );
+
+  VERIFY( ms1.erase(*ms1.begin()) == 1 );  
+  VERIFY( ms1.size() == 0 );
+  VERIFY( ms1.begin() == ms1.end() );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/24061-multiset.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/24061-multiset.cc
new file mode 100644
index 000000000..c5eea6eee
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/24061-multiset.cc
@@ -0,0 +1,107 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2010-02-10  Paolo Carlini  <paolo.carlini@oracle.com> 
+//
+// Copyright (C) 2010 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 <unordered_set>
+#include <string>
+#include <testsuite_hooks.h>
+
+// libstdc++/24061
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  
+  typedef std::unordered_multiset<std::string> Mset;
+  typedef Mset::iterator       iterator;
+  typedef Mset::const_iterator const_iterator;
+
+  Mset ms1;
+  
+  ms1.insert("all the love in the world");
+  ms1.insert("you know what you are?");
+  ms1.insert("the collector");
+  ms1.insert("the hand that feeds");
+  ms1.insert("love is not enough");
+  ms1.insert("every day is exactly the same");
+  ms1.insert("with teeth");
+  ms1.insert("only");
+  ms1.insert("getting smaller");
+  ms1.insert("sunspots");
+
+  ms1.insert("the hand that feeds");
+  ms1.insert("love is not enough");
+  ms1.insert("every day is exactly the same");
+  VERIFY( ms1.size() == 13 );
+
+  iterator it1 = ms1.begin();
+  ++it1;
+  iterator it2 = it1;
+  ++it2;
+  iterator it3 = ms1.erase(it1);
+  VERIFY( ms1.size() == 12 );
+  VERIFY( it3 == it2 );
+  VERIFY( *it3 == *it2 );
+
+  iterator it4 = ms1.begin();
+  ++it4;
+  ++it4;
+  ++it4;
+  iterator it5 = it4;
+  ++it5;
+  ++it5;
+  iterator it6 = ms1.erase(it4, it5);
+  VERIFY( ms1.size() == 10 );
+  VERIFY( it6 == it5 );
+  VERIFY( *it6 == *it5 );
+
+  const_iterator it7 = ms1.begin();
+  ++it7;
+  ++it7;
+  ++it7;
+  const_iterator it8 = it7;
+  ++it8;
+  const_iterator it9 = ms1.erase(it7);
+  VERIFY( ms1.size() == 9 );
+  VERIFY( it9 == it8 );
+  VERIFY( *it9 == *it8 );
+
+  const_iterator it10 = ms1.begin();
+  ++it10;
+  const_iterator it11 = it10;
+  ++it11;
+  ++it11;
+  ++it11;
+  ++it11;
+  const_iterator it12 = ms1.erase(it10, it11);
+  VERIFY( ms1.size() == 5 );
+  VERIFY( it12 == it11 );
+  VERIFY( *it12 == *it11 );
+
+  iterator it13 = ms1.erase(ms1.begin(), ms1.end());
+  VERIFY( ms1.size() == 0 );
+  VERIFY( it13 == ms1.end() );
+  VERIFY( it13 == ms1.begin() );
+}
+  
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/51142.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/51142.cc
new file mode 100644
index 000000000..4db6af0fa
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/erase/51142.cc
@@ -0,0 +1,38 @@
+// 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/>.
+//
+
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_set>
+
+struct X
+{
+  template<typename T>
+  X(T&) {}
+};
+
+bool operator==(const X&, const X&) { return false; }
+
+// LWG 2059.
+void erasor(std::unordered_multiset<X>& s, X x)
+{
+  std::unordered_multiset<X>::iterator it = s.find(x);
+  if (it != s.end())
+    s.erase(it);
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/hash_policy/dr1189.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/hash_policy/dr1189.cc
new file mode 100644
index 000000000..59232a35a
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/hash_policy/dr1189.cc
@@ -0,0 +1,48 @@
+// { dg-options "-std=gnu++0x" }
+// 2010-03-10  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// Copyright (C) 2010 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 <unordered_set>
+#include <testsuite_hooks.h>
+
+// DR 1189. Awkward interface for changing the number of buckets
+// in an unordered associative container
+void test01() 
+{ 
+  bool test __attribute__((unused)) = true;
+  
+  std::unordered_multiset<int> ms1;
+  ms1.reserve(10);
+  VERIFY( ms1.bucket_count() >= 10 );
+
+  ms1.reserve(100);
+  VERIFY( ms1.bucket_count() >= 100 );
+
+  std::unordered_multiset<int> ms2(100);
+  VERIFY( ms2.bucket_count() >= 100 );
+
+  ms2.reserve(1000);
+  VERIFY( ms2.bucket_count() >= 1000 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/init-list.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/init-list.cc
new file mode 100644
index 000000000..41c7ac712
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/init-list.cc
@@ -0,0 +1,59 @@
+// 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/>.
+//
+
+// { dg-options "-std=gnu++0x" }
+
+#include <unordered_set>
+#include <testsuite_hooks.h>
+
+using namespace std;
+
+int test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  unordered_multiset<int> m({ 1, 5, 5, 37 });
+  VERIFY(m.size() == 4);
+  VERIFY(m.count(1) == 1);
+  VERIFY(m.count(5) == 2);
+  VERIFY(m.count(37) == 1);
+  VERIFY(m.count(42) == 0);
+
+  m = { 28, 37, 37, 37, 102 };
+  VERIFY(m.size() == 5);
+  VERIFY(m.count(28) == 1);
+  VERIFY(m.count(37) == 3);
+  VERIFY(m.count(102) == 1);
+  VERIFY(m.count(1) == 0);
+
+  m.insert({ 42, 42 });
+  VERIFY(m.size() == 7);
+  VERIFY(m.count(28) == 1);
+  VERIFY(m.count(37) == 3);
+  VERIFY(m.count(102) == 1);
+  VERIFY(m.count(42) == 2);
+  VERIFY(m.count(1) == 0);
+
+  return test;
+}
+
+int main()
+{
+  __gnu_test::set_memory_limits();
+  test01();
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/24061-multiset.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/24061-multiset.cc
new file mode 100644
index 000000000..6d8b34d3e
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/24061-multiset.cc
@@ -0,0 +1,57 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2010-02-10  Paolo Carlini  <paolo.carlini@oracle.com> 
+//
+// Copyright (C) 2010 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 <unordered_set>
+#include <string>
+#include <testsuite_hooks.h>
+
+// libstdc++/24061
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  
+  typedef std::unordered_multiset<std::string> Mset;
+  typedef Mset::iterator       iterator;
+  typedef Mset::const_iterator const_iterator;
+
+  Mset ms1;
+  
+  iterator it1 = ms1.insert(ms1.begin(), "all the love in the world");
+  VERIFY( ms1.size() == 1 );
+  VERIFY( *it1 == "all the love in the world" );
+  
+  const_iterator cit1(it1);
+  const_iterator cit2 = ms1.insert(cit1, "you know what you are?");
+  VERIFY( ms1.size() == 2 );
+  VERIFY( cit2 != cit1 );
+  VERIFY( *cit2 == "you know what you are?" );
+
+  iterator it2 = ms1.insert(it1, "all the love in the world");
+  VERIFY( ms1.size() == 3 );
+  VERIFY( it2 != it1 );
+  VERIFY( *it2 == "all the love in the world" );
+}
+  
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_range.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_range.cc
new file mode 100644
index 000000000..571346fd5
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_range.cc
@@ -0,0 +1,79 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+// range insert
+
+#include <string>
+#include <iterator>
+#include <algorithm>
+#include <unordered_set>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::unordered_multiset<std::string> Set;
+  Set s;
+  VERIFY(s.empty());
+
+  const int N = 10;
+  const std::string A[N] = { "red", "green", "blue", "violet", "cyan",
+			     "magenta", "yellow", "orange", "pink", "gray" };
+
+  s.insert(A+0, A+N);
+  VERIFY(s.size() == static_cast<unsigned int>(N));
+  VERIFY(std::distance(s.begin(), s.end()) == N);
+
+  for (int i = 0; i < N; ++i) {
+    std::string str = A[i];
+    Set::iterator it = std::find(s.begin(), s.end(), str);
+    VERIFY(it != s.end());
+  }
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::unordered_multiset<int> Set;
+  Set s;
+  VERIFY(s.empty());
+
+  const int N = 8;
+  const int A[N] = { 3, 7, 4, 8, 2, 4, 6, 7 };
+
+  s.insert(A+0, A+N);
+  VERIFY(s.size() == static_cast<unsigned int>(N));
+  VERIFY(std::distance(s.begin(), s.end()) == N);
+
+  VERIFY(std::count(s.begin(), s.end(), 2) == 1);
+  VERIFY(std::count(s.begin(), s.end(), 3) == 1);
+  VERIFY(std::count(s.begin(), s.end(), 4) == 2);
+  VERIFY(std::count(s.begin(), s.end(), 6) == 1);
+  VERIFY(std::count(s.begin(), s.end(), 7) == 2);
+  VERIFY(std::count(s.begin(), s.end(), 8) == 1);
+}
+
+int main()
+{
+  test01();
+  test02();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single.cc
new file mode 100644
index 000000000..f275e9a9b
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single.cc
@@ -0,0 +1,67 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+// Single-element insert
+
+#include <string>
+#include <iterator>
+#include <unordered_set>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::unordered_multiset<std::string> Set;
+  Set s;
+  VERIFY(s.empty());
+
+  Set::iterator i = s.insert("abcde");
+  VERIFY(s.size() == 1);
+  VERIFY(std::distance(s.begin(), s.end()) == 1);
+  VERIFY(i == s.begin());
+  VERIFY(*i == "abcde");
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+
+  typedef std::unordered_multiset<std::string> Set;
+  Set s;
+  VERIFY(s.empty());
+
+  s.insert("abcde");
+  Set::iterator i = s.insert("abcde");
+  VERIFY(s.size() == 2);
+  VERIFY(std::distance(s.begin(), s.end()) == 2);
+  VERIFY(*i == "abcde");
+  
+  Set::iterator i2 = s.begin();
+  ++i2;
+  VERIFY(i == s.begin() || i == i2);
+  VERIFY(*(s.begin()) == "abcde" && *i2 == "abcde");
+}
+
+int main()
+{
+  test01();
+  test02();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single_move.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single_move.cc
new file mode 100644
index 000000000..14b8e1681
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single_move.cc
@@ -0,0 +1,71 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2010-10-27  Paolo Carlini  <paolo.carlini@oracle.com> 
+//
+// Copyright (C) 2010 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/>.
+
+// Single-element insert
+
+#include <iterator>
+#include <unordered_set>
+#include <testsuite_hooks.h>
+#include <testsuite_rvalref.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using __gnu_test::rvalstruct;
+
+  typedef std::unordered_multiset<rvalstruct> Set;
+  Set s;
+  VERIFY( s.empty() );
+
+  Set::iterator i = s.insert(rvalstruct(1));
+  VERIFY( s.size() == 1 );
+  VERIFY( std::distance(s.begin(), s.end()) == 1 );
+  VERIFY( i == s.begin() );
+  VERIFY( (*i).val == 1 );
+}
+
+void test02()
+{
+  bool test __attribute__((unused)) = true;
+  using __gnu_test::rvalstruct;
+
+  typedef std::unordered_multiset<rvalstruct> Set;
+  Set s;
+  VERIFY( s.empty() );
+
+  s.insert(rvalstruct(2));
+  Set::iterator i = s.insert(rvalstruct(2));
+  VERIFY( s.size() == 2 );
+  VERIFY( std::distance(s.begin(), s.end()) == 2 );
+  VERIFY( (*i).val == 2 );
+  
+  Set::iterator i2 = s.begin();
+  ++i2;
+  VERIFY( i == s.begin() || i == i2 );
+  VERIFY( (*(s.begin())).val == 2 && (*i2).val == 2 );
+}
+
+int main()
+{
+  test01();
+  test02();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/operators/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/operators/1.cc
new file mode 100644
index 000000000..3e3b1c762
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/operators/1.cc
@@ -0,0 +1,108 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2010-03-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+// Copyright (C) 2010 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 <unordered_set>
+#include <testsuite_hooks.h>
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::unordered_multiset<int> ums1, ums2;
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(1);
+  ums2.insert(1);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(2);
+  ums2.insert(2);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(1);
+  ums2.insert(1);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(3);
+  VERIFY( ums1 != ums2 );
+  VERIFY( !(ums1 == ums2) );
+
+  ums2.insert(3);
+  VERIFY( (ums1 == ums2) );
+  VERIFY( !(ums1 != ums2) );
+
+  ums2.clear();
+  VERIFY( ums1 != ums2 );
+  VERIFY( !(ums1 == ums2) );
+
+  ums1.clear();
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(1);
+  ums2.insert(2);
+  VERIFY( ums1 != ums2 );
+  VERIFY( !(ums1 == ums2) );
+
+  ums1.insert(2);
+  ums2.insert(1);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(3);
+  ums2.insert(4);
+  VERIFY( ums1 != ums2 );
+  VERIFY( !(ums1 == ums2) );
+
+  ums1.insert(4);
+  VERIFY( ums1 != ums2 );
+  VERIFY( !(ums1 == ums2) );
+
+  ums2.insert(3);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(1);
+  ums2.insert(1);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  ums1.insert(4);
+  ums2.insert(4);
+  VERIFY( ums1 == ums2 );
+  VERIFY( !(ums1 != ums2) );
+
+  const std::unordered_multiset<int> cums1(ums1), cums2(ums2);
+  VERIFY( cums1 == cums2 );
+  VERIFY( !(cums1 != cums2) );
+  VERIFY( cums1 == ums2 );
+  VERIFY( !(ums1 != cums2) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/range_access.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/range_access.cc
new file mode 100644
index 000000000..ac0fdaa2c
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/range_access.cc
@@ -0,0 +1,31 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+// 24.6.5, range access [iterator.range]
+
+#include <unordered_set>
+
+void
+test01()
+{
+  std::unordered_multiset<int> ums{1, 2, 3};
+  std::begin(ums);
+  std::end(ums);
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/citerators.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/citerators.cc
new file mode 100644
index 000000000..6731848fe
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/citerators.cc
@@ -0,0 +1,30 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2007-10-15  Paolo Carlini  <pcarlini@suse.de>
+
+// 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 <unordered_set>
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::unordered_multiset<int> test_type;
+  __gnu_test::citerator<test_type> test;
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/cliterators.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/cliterators.cc
new file mode 100644
index 000000000..c9db47ce5
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/cliterators.cc
@@ -0,0 +1,32 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2008-06-11  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 <unordered_set>
+#include <testsuite_containers.h>
+
+int main()
+{
+  typedef std::unordered_multiset<int> 		test_type;
+  typedef typename test_type::value_type	value_type;
+  value_type v(1);
+  __gnu_test::forward_members_unordered<test_type> test(v);
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/debug.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/debug.cc
new file mode 100644
index 000000000..f7774948d
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/debug.cc
@@ -0,0 +1,26 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 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 <string>
+#include <debug/unordered_set>
+
+using namespace __gnu_debug;
+
+template class unordered_multiset<int>;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/basic.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/basic.cc
new file mode 100644
index 000000000..b0344e844
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/basic.cc
@@ -0,0 +1,42 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-require-cstdint "" }
+
+// 2009-11-30  Benjamin Kosnik  <benjamin@redhat.com>
+
+// Copyright (C) 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 <unordered_set>
+#include <exception/safety.h>
+
+void
+value()
+{
+  typedef __gnu_cxx::throw_value_limit value_type;
+  typedef __gnu_cxx::throw_allocator_limit<value_type> allocator_type;
+  typedef std::hash<value_type> hash_type;
+  typedef std::equal_to<value_type> pred_type;
+  typedef std::unordered_multiset<value_type, hash_type, pred_type, allocator_type> test_type;
+  __gnu_test::basic_safety<test_type> test;
+}
+
+// Container requirement testing, exceptional behavior
+int main()
+{
+  value();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/generation_prohibited.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/generation_prohibited.cc
new file mode 100644
index 000000000..a0d8abb54
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/generation_prohibited.cc
@@ -0,0 +1,36 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-require-cstdint "" }
+
+// 2009-09-09  Benjamin Kosnik  <benjamin@redhat.com>
+
+// Copyright (C) 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 <unordered_set>
+#include <exception/safety.h>
+
+// Container requirement testing, exceptional behavior
+int main()
+{
+  typedef __gnu_cxx::throw_value_random value_type;
+  typedef __gnu_cxx::throw_allocator_random<value_type> allocator_type;
+  typedef std::hash<value_type> hash_type;
+  typedef std::equal_to<value_type> pred_type;
+  typedef std::unordered_multiset<value_type, hash_type, pred_type, allocator_type> test_type;
+  __gnu_test::generation_prohibited<test_type> test;
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/propagation_consistent.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/propagation_consistent.cc
new file mode 100644
index 000000000..b0303c14d
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/exception/propagation_consistent.cc
@@ -0,0 +1,36 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-require-cstdint "" }
+
+// 2009-09-09  Benjamin Kosnik  <benjamin@redhat.com>
+
+// Copyright (C) 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 <unordered_set>
+#include <exception/safety.h>
+
+// Container requirement testing, exceptional behavior
+int main()
+{
+  typedef __gnu_cxx::throw_value_limit value_type;
+  typedef __gnu_cxx::throw_allocator_limit<value_type> allocator_type;
+  typedef std::hash<value_type> hash_type;
+  typedef std::equal_to<value_type> pred_type;
+  typedef std::unordered_multiset<value_type, hash_type, pred_type, allocator_type> test_type;
+  __gnu_test::propagation_consistent<test_type> test;
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/1.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/1.cc
new file mode 100644
index 000000000..a8fbbd081
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/1.cc
@@ -0,0 +1,23 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 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 <unordered_set>
+
+template class std::unordered_multiset<int>;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/2.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/2.cc
new file mode 100644
index 000000000..5764e924e
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/2.cc
@@ -0,0 +1,29 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 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/>.
+
+// This file tests explicit instantiation of library containers
+
+#include <unordered_set>
+#include <testsuite_hooks.h>
+#include <testsuite_api.h>
+
+typedef __gnu_test::NonDefaultConstructible      inst_type;
+typedef __gnu_test::NonDefaultConstructible_hash hash_type;
+template class std::unordered_multiset<inst_type, hash_type>;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/3.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/3.cc
new file mode 100644
index 000000000..faf119ca2
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/3.cc
@@ -0,0 +1,24 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 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 <unordered_set>
+
+using namespace std;
+template class unordered_multiset<int, hash<int>, equal_to<int>, allocator<char>>;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/4.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/4.cc
new file mode 100644
index 000000000..618402643
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/explicit_instantiation/4.cc
@@ -0,0 +1,33 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 2010-05-20  Paolo Carlini  <paolo.carlini@oracle.com>
+//
+// Copyright (C) 2010 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/>.
+
+// This file tests explicit instantiation of library containers
+
+#include <unordered_set>
+#include <testsuite_hooks.h>
+#include <testsuite_api.h>
+
+typedef __gnu_test::OverloadedAddress      inst_type;
+typedef __gnu_test::OverloadedAddress_hash hash_type;
+
+// libstdc++/41792
+template class std::unordered_multiset<inst_type, hash_type>;
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/typedefs.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/typedefs.cc
new file mode 100644
index 000000000..7e65e3a21
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/requirements/typedefs.cc
@@ -0,0 +1,25 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 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 <testsuite_containers.h>
+#include <unordered_set>
+
+// Check container for required typedefs.
+__gnu_test::types<std::unordered_multiset<int> > t;