PR libstdc++/56267

	* include/bits/hashtable_policy.h (_Hash_code_base<... false>): Grant
	friendship to _Local_iterator_base<..., false>.
	(_Local_iterator_base): Give protected access to all existing members.
	(_Local_iterator_base::_M_curr()): New public accessor.
	(_Local_iterator_base::_M_get_bucket()): New public accessor.
	(_Local_iterator_base<..., false>::_M_init()): New function to manage
	the lifetime of the _Hash_code_base explicitly.
	(_Local_iterator_base<..., false>::_M_destroy()): Likewise.
	(_Local_iterator_base<..., false>): Define copy constructor and copy
	assignment operator that use new functions to manage _Hash_code_base.
	(operator==(const _Local_iterator_base&, const _Local_iterator_base&),
	operator==(const _Local_iterator_base&, const _Local_iterator_base&)):
	Use public API for _Local_iterator_base.
	* include/debug/safe_local_iterator.h (_Safe_local_iterator): Likewise.
	* include/debug/unordered_map (__debug::unordered_map::erase(),
	__debug::unordered_multimap::erase()): Likewise.
	* include/debug/unordered_set (__debug::unordered_set::erase(),
	__debug::unordered_multiset::erase()): Likewise.
	* testsuite/23_containers/unordered_set/56267-2.cc: New test.

git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@206834 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 43 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/56267-2.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/56267-2.cc
new file mode 100644
index 00000000000..cae451a53f7
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/56267-2.cc
@@ -0,0 +1,43 @@
+// Copyright (C) 2014 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++11" }
+
+#include <unordered_set>
+
+struct audrey2hash : std::hash<int>
+{
+  audrey2hash() { throw "Seed me, Seymour"; } // must not use default ctor
+
+  audrey2hash(int) { }
+
+  audrey2hash&
+  operator=(const audrey2hash&) { throw "Don't assign the plants"; }
+};
+
+void test01()
+{
+  typedef std::unordered_set<int, audrey2hash> test_type;
+  test_type::local_iterator it __attribute__((unused));
+  test_type c{ {1, 2, 3}, 3u, audrey2hash{1} };
+  it = c.begin(0);
+}
+
+int main()
+{
+  test01();
+}