Re: [boost] [bind] list[01] -> fusion::tuple

From: John Fletcher (J.P.Fletcher_at_[hidden])
Date: 2007-01-18 07:12:42

Sohail Somani wrote:
> -----Original Message-----
> From: boost-bounces_at_[hidden] on behalf of Peter Dimov
> 
> I need to warn you that there is very little chance for your patch to be 
> accepted in this form. Extending _bi::listN (I'd suggest making them 
> conforming MPL or fusion sequences) needs to be done non-intrusively and in 
> a separate header. 
> 
> ------
> 
> Hey Peter, I'm almost there doing it this way, but I gotta tell you that it requires generating code (attached) as you need lots of partial specializations. The reason is that there isn't one type but N types. Consider getting the type of the element at index I. Of course, even with changing to some other tuple as the underlying, I think you'd have to generate code (who would want to write it out by hand?!).
> 
> Does that sound sensible or totally wrong?
> 
> Sohail
> 
> PS: It is pretty easy to extend fusion, I must say!
> 
> 
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I think is an example of a case where the variaidic templates work done 
by Doug Gregor is a help in enabling a general implementation to be much 
shorter.

John Fletcher