2013-06-21  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/57666
	* include/std/valarray (valarray<>::operator=(const _Expr<>&)):
	Implement correctly C++11 26.6.2.3/1.
	* testsuite/26_numerics/valarray/dr630-3.C: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@200305 138bc75d-0d04-0410-961f-82ee72b054a4