2006-02-08 Paolo Carlini <pcarlini@suse.de>

	PR libstdc++/26133  (DR 241, [WP])
	* include/bits/stl_algo.h (__unique_copy(,,, forward_iterator_tag,
	output_iterator_tag), __unique_copy(,,, input_iterator_tag,
	output_iterator_tag), __unique_copy(,,, input_iterator_tag,
	forward_iterator_tag), and predicated counterparts): Add.
	(__unique_copy(,,, output_iterator_tag), __unique_copy(,,,
	forward_iterator_tag), and predicated counterparts): Remove.
	(unique_copy): Adjust, dispatch to the three helpers above.
	* testsuite/25_algorithms/unique_copy/2.cc: New.
	* testsuite/25_algorithms/unique_copy/26133.cc: Likewise.
	* testsuite/25_algorithms/unique_copy/3.cc: Likewise.	
	* docs/html/ext/howto.html: Add an entry for DR 241.

	* testsuite/25_algorithms/unique_copy/1.cc: Minor cosmetic changes.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110772 138bc75d-0d04-0410-961f-82ee72b054a4