Re: [boost] Re: [filesystem] issue with path::iterator

From: Beman Dawes (bdawes_at_[hidden])
Date: 2004-08-22 19:02:24

At 05:17 PM 8/22/2004, David Abrahams wrote:
 >Beman Dawes <bdawes_at_[hidden]> writes:
 >
 >> What is weird is that even though the single_pass_traversal_tag is
 >> given, the path_test.cpp regression test uses operator-- in tests,
 >> and they compile fine.
 >>
 >> So it looks like there is also a bug in iterator adaptors too, since
 >> I would think that the use of operator-- on a single pass iterator
 >> should fail.
 >
 >It's not a bug to provide more functionality than the category
 >allows.  If you supply a decrement() operation, operator-- will call
 >it.

OK. Thanks for the clarification.

I guess that means the filesystem test needs an additional case that would 
work for a bidirectional iterator but fail for a single pass traversal 
iterator which supplies a decrement() operator. Any suggestions?

--Beman