Re: [boost] [fusion][parameter] a solution for namedparameters/parameter packs using fusion maps

From: David Abrahams (dave_at_[hidden])
Date: 2008-08-13 15:12:31

on Wed Aug 13 2008, "Peter Dimov" <pdimov-AT-pdimov.com> wrote:

> David Abrahams:
>> on Wed Aug 13 2008, "Peter Dimov" <pdimov-AT-pdimov.com> wrote:
>>
>>> Stjepan Rajko:
>>>
>>>> function_taking_both( label("hello") & size(1) );
>>>
>>> FWIW, I've been using this in a context where I needed "arbitrary"
>>> argument lists and it works. It has the advantage that the caller only
>>> needs to know about label and size, the eventual callee only needs to
>>> know about the arguments it recognizes and can ignore the rest, and
>>> the intermediate layers can pass everything downstream as-is without
>>> knowing about anything. 
>>
>> Why is everyone hand-rolling the functionality we already have in
>> Boost.Parameter?
>
> I hand-rolled it in 2002. :-)

Whew; that makes me feel a *little* better, anyway :-)

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com