Boost logo

Boost :

From: Matthew Hurd (matt_at_[hidden])
Date: 2003-11-11 21:38:18


> On Behalf Of John Torjo
> Subject: Re: [boost] String thought
[snip]
> > In in this case there is an easy way for optimazation, when it is
> required (using +=).
> > So if the performance does matter, user has a simple solution.
> > If the performance is not important, there is not need for complication,
> that such
> > a framework would bring.
>
> Indeed. For the purpose of this optimization, a string algorithm could be
> used ;)
> Also, I guess for those that are interested in optimizing such
> expressions,
> there should be another way IMO.
>
> Allow making two or more containers of *the same type*, seem like a
> continuous
> range.
> We could then have something similar to:
>
> s = concatenate( a, b, c);
>
> This will also be much more general, allowing to copy two deques into a
> range,
> or something similar.
>
> But more on that, when we (Matt Wilson and me) will present the first
> version of
> rtl (Ranges Template Library) ;)
>
>
> Best,
> John

Very neat concept.

I realise you are talking about something much more general, but I would
like to see the syntactic sugar of operator+ still available for
concatenation / union if appropriate. Also part of the magic to make such
stuff efficient is being able to resize or pre-allocate the destination as
part of operator=. Do have thoughts on approaching that part of it?

Curious as to how the rtl going to relate to the vtl and iterator libs.
Your view?

Regards,

Matt Hurd.


Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk