Re: [boost] compressed_pair initialization

From: David Abrahams (dave_at_[hidden])
Date: 2006-05-19 08:05:03

"Matt Calabrese" <rivorus_at_[hidden]> writes:

> On 5/18/06, Howard Hinnant <hinnant_at_[hidden]> wrote:
> Actually you don't even need a new type compressed_tuple.  You could
> put this functionality straight into tuple.  It'd be a royal pain to
> do for tuple sizes greater than 3 or 4 though.  Dave, how many empty
> members do you find yourself glomming together?  I often have several
> potentially empty members but usually have at least that many non-
> empty members to spread them around on (I have one example where
> wanted to glom two empty members onto a non-empty member).
>
> True, though one [potential] problem with that would be that compressed
> pairs and tuples are allowed to share storage for empty types, 

I don't think so.  See line 258 of
http://www.boost-consulting.com/boost/boost/detail/compressed_pair.hpp

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