Re: [Boost-users] iterator_facade and custom reference types

From: David Abrahams (dave_at_[hidden])
Date: 2007-07-23 10:05:54

on Mon Jul 23 2007, Daniel Oberhoff <daniel.oberhoff-AT-fit.fraunhofer.de> wrote:

> hi
>
> I am struggling with iterator_face. I have a container of bits with a
> smart reference type. This is because the exposed type is bool, but
> there is never a full boolean variable around for an index, just a
> single bit. So whenever a reference to a bool is requested I want to
> pass my smart reference that knows how to get and set this bit.
>
> But iterator_facade is too smart for this: it wants to make a true
> reference to a supplied Value type, 

iterator_facade uses the Reference type you pass in as the associated
reference, which is returned from operator*

Where do you see iterator_facade wanting to make a true reference?

> which results in references to temporaries. Is there any way to tell
> iterator_facade to use my type as a ref type?

I'd like to know what you're seeing that leads you to believe it
doesn't do that.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com
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