1 files changed, 68 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc
new file mode 100644
index 00000000000..61807c0efd2
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+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc
@@ -0,0 +1,68 @@
+// Copyright (C) 2017 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 run { target c++11 } }
+
+#include <unordered_map>
+#include <testsuite_hooks.h>
+#include <testsuite_allocator.h>
+
+struct fails_on_copy {
+  fails_on_copy() = default;
+  fails_on_copy(const fails_on_copy&) { throw 0; };
+};
+
+using value_type = std::pair<int, fails_on_copy>;
+
+void
+test01()
+{
+  value_type p;
+  try
+  {
+    std::unordered_map<int, fails_on_copy> umap(&p, &p + 1);
+  }
+  catch(...)
+  { }
+}
+
+void
+test02()
+{
+  using Alloc = __gnu_test::tracker_allocator<value_type>;
+  using std::hash;
+  using std::equal_to;
+
+  value_type p;
+  try
+  {
+    std::unordered_map<int, fails_on_copy, hash<int>, equal_to<int>, Alloc>
+	umap(&p, &p + 1);
+  }
+  catch(...)
+  { }
+
+  using counter = __gnu_test::tracker_allocator_counter;
+  VERIFY(counter::get_allocation_count() == counter::get_deallocation_count());
+}
+
+int
+main()
+{
+  test01();
+  test02();
+}