1 files changed, 28 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/operators/52309.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/operators/52309.cc
new file mode 100644
index 00000000000..5b16f0b3cd9
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/operators/52309.cc
@@ -0,0 +1,28 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2012 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>
+
+// libstdc++/52309
+struct value {};
+struct hash { std::size_t operator()(const value&) const; };
+bool operator==(value const&, value const&);
+std::unordered_set<value, hash> set;
+bool z = (set == set);