Iterators Must Go

[Steven Schveighoffer]

On Sat, 09 May 2009 12:40:34 -0400, Michel Fortin  
<michel.fortin at michelf.com> wrote:

> On 2009-05-09 10:45:05 -0400, "Steven Schveighoffer"  
> <schveiguy at yahoo.com> said:
>
>> STL iterators can be used for more than just iteration.  They also  
>> serve  as cursors, or pointers to specific elements.  If you add the  
>> ability for  them to check their own bounds, then they become as safe  
>> as ranges, and  can be used as general purpose pointers for things like  
>> insertion,  deletion, bi-directional traversal, things that ranges can  
>> do but are  clumsy at.
>>  You still have the interchangable-with-pointer concept burned into  
>> your  brain :)
>>  Think more like this:
>>  for(cursor i = begin; !i.end; i++)
>
> So basically your cursor is a range (so it knows its bounds) with an  
> added position pointer.

Basically, yes.

-Steve