Re: [Boost-users] implementing a new Range

Subject: Re: [Boost-users] implementing a new Range
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2009-08-26 13:31:39

Neil Groves wrote:

>     I thought you could overload begin/end directly and it would get
>     picked up by ADL, but it looks like it's range_begin/range_end.
>     That really should be changed.
> 
> 
> I disagree that this should be changed. This arrangement allows 
> qualified calls to boost::begin(x), boost::end(x) to continue to work 
> and find the approriate range_begin(), range_end() functions via 
> argument dependent lookup. If this rationale does not appear correct, 
> then please explain a little further. I would be happy to make the 
> change if I understand that it really would be an improvement.

The proposed system for C++0x uses directly begin/end as customization 
points picked up by ADL IIRC.

boost::begin could still be used fully qualified and defer to ADL or the 
basic implemenation, similarly to boost::swap, no?