2011-05-18  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/bits/shared_ptr_base.h: Use noexcept. Define special member
	functions as defaulted/deleted.
	* include/bits/shared_ptr.h: Use noexcept.
	* 20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error line numbers.
	* 20_util/weak_ptr/comparison/cmp_neg.cc: Likewise.

From-SVN: r173882