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: Steven Watanabe (watanabesj_at_[hidden])
Date: 2008-11-12 12:46:10

AMDG

David Abrahams 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.

How do you distinguish const T& from T?
If T is large, it is not necessarily a good idea
to make extraneous copies if they can be avoided.
Unlike iterator_facade, iterator_range doesn't
make it easy to replace its version of operator[]...

In Christ,
Steven Watanabe