2002-05-18  Paolo Carlini  <pcarlini@unitus.it>

	PR libstdc++/6503
	* include/bits/stl_deque.h (_Deque_iterator::operator==,
	operator!=, operator<, operator>, operator>=, operator<=):
	Make non-member functions, to allow comparing const and
	non-const iterators in any order.
	* testsuite/23_containers/deque_operators.cc: New testfile.

From-SVN: r53590