Re: [Boost-users] Iteration with cycling and clamping.

From: shunsuke (pstade.mb_at_[hidden])
Date: 2007-09-22 08:13:36

Michael Marcin wrote:
> For lists that cycle through the available items when operator++ is 
> called on the last iterator before end that satisfies the predicate it 
> the iterator should point to the first element that satisfies the 
> predicate.  When operator-- is called on that iterator it should point 
> to the last iterator before end again.

See: http://tinyurl.com/2o3ch4
  or: http://tinyurl.com/2bgjfv
Then you might want to apply boost::filter_iterator.

> For lists that traverse the available items without cycling when 
> operator++ is called on the last iterator before end that satisfies the 
> predicate the iterator should point to the same element.  When 
> operator-- is called on the first iterator that satisfies the predicate 
> the iterator should point to the same element.

I haven't ever seen such one, AFAIK.

Regards,

-- 
Shunsuke Sogame