2014-06-02  Rüdiger Sonderfeld  <ruediger@c-plusplus.de>
	    Jonathan Wakely  <jwakely@redhat.com>

	* libstdc++-v3/include/std/type_traits (__strictest_alignment): New
	helper struct.
	(aligned_union): New struct (C++11).
	(aligned_union_t): New type alias (C++14).
	* doc/xml/manual/status_cxx2011.xml: Update.
	* libstdc++-v3/testsuite/20_util/aligned_union/1.cc: New file.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
	line number.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211137 138bc75d-0d04-0410-961f-82ee72b054a4