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

From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-06-03 15:26:18

Neal Becker wrote:
> 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.

Don't do what? Use a strided iterator?