Re: [Boost-users] [general/iostreams/iterators] Why not a forward and/or a random access istream iterator?

From: David Abrahams (dave_at_[hidden])
Date: 2005-10-18 07:24:34

"Mats Eklund" <matek994_at_[hidden]> writes:

> Hello,
>  
>  does anybody know whether there is something fundamentally wrong
> with designing an istream iterator that conforms with the forward,
> or even random access, iterator concepts? 

Nope; there's nothing wrong with it.  It can get tricky, though: to
meet the forward iterator requirements (operator* must return a true
reference), your iterator would have to keep an internal cache of the
element being referenced.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com