Re: [boost] [fusion] unpack into constructor?

From: Hartmut Kaiser (hartmut.kaiser_at_[hidden])
Date: 2007-06-14 09:04:23

dan marsden wrote:

> >I have a Fusion sequence. I want to create an object of type T using 
> >the elements of the sequence as arguments to the 
> constructor. Is there 
> >an easy way? I can't tell my looking at the docs. I looked 
> at the stuff 
> >in fusion/functional and couldn't find what I was looking for.

Isn't that exactly what a Phoenix actor does? 

Regards Hartmut

> 
> I don't think we've got anything that supports this directly 
> at the moment.
> Is the sort of thing you are looking for?
> 
> fused_ctor<T> fc;
> T t = fc(sequence);
> 
> Where fused_ctor::operator()(Seq const&) breaks up the 
> sequence into args for the T ctor.
> 
> If thats the sort of thing, I think we should have something 
> like this, I can cook something up over the next few days, 
> once I've worked through a bit of my backlog :)
> 
> Of course I may have missed an existing feature, which my 
> co-authors might pick me up on...
> 
> Cheers
> 
> Dan
> 
> 
> 
> 
> 
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