Re: [boost] [Multiarray] & [Range] MSVC/gcc warning: returning address of local variable or temporary

Subject: Re: [boost] [Multiarray] & [Range] MSVC/gcc warning: returning address of local variable or temporary
From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2008-11-12 17:03:38

David Abrahams skrev:
> on Wed Nov 12 2008, Thorsten Ottosen <thorsten.ottosen-AT-dezide.com> wrote:
> 
>> Do you mean that I can detect the return type of operator[] at
>> compile-time and do correct forwarding? 
> 
> No, I mean you can detect when the return type of operator[] is the same
> as the reference type.  Maybe if it isn't, you could turn off whatever
> you're doing with enable_if or something.  Why is iterator_range using
> the iterator's operator[], anyway?

It seems very natural to be able to index a random access range, doesn't 
it. And how else would you implement that?

Anyway, I guess I could do that check. Is it illegal for the iterators 
reference type to be a non-reference?

-Thorsten