2015-05-14  Nathan Myers  <ncm@cantrip.org>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/66055
	* include/std/unordered_map (unordered_map, unordered_multimap): Add
	missing constructors.
	* include/std/unordered_set (unordered_set, unordered_multiset):
	Likewise.
	* testsuite/23_containers/unordered_map/cons/66055.cc: New.
	* testsuite/23_containers/unordered_multimap/cons/66055.cc: New.
	* testsuite/23_containers/unordered_multiset/cons/66055.cc: New.
	* testsuite/23_containers/unordered_set/cons/66055.cc: New.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r223198