2011-03-22  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/shared_ptr.h (operator>, operator<=, operator>=): Add,
	per DR 1401.
	(operator==, operator!=, operator<): Fix per the letter of DR 1401.
	* include/bits/shared_ptr_base.h: Likewise for __shared_ptr.
	* include/bits/unique_ptr.h (operator==, operator!=, operator<,
	operator<=, operator>, operator>=): Fix per the letter of DR 1401.
	* testsuite/20_util/shared_ptr/comparison/dr1401.cc: New.
	* testsuite/20_util/unique_ptr/comparison/dr1401.cc: Likewise.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Adjust.

From-SVN: r171293