[boost] Re: Re: Re: stride iterators and matricies

From: Neal Becker (ndbecker2_at_[hidden])
Date: 2005-06-03 14:17:30

Peter Dimov wrote:

> Neal Becker wrote:
> 
>> Here's my version:
> 
> [...]
> 
> One interesting problem with strided iterators is coming up with end
> values. Suppose you have
> 
> int x[ 4 ];
> 
> and you want to iterate over x[1] and x[3] with stride 2. Your begin
> iterator will be x+1, and your end iterator will be x+5 - an invalid
> address.
> 

Yup.  Simple solution: Don't do that.