Re: [boost] [proprocessor] PP challenge!

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-11-04 16:33:38

Eric Niebler wrote:
> I have a preprocessing task that exceeds my limited abilities. If any
> PP gurus want to step in and prevent me from hurting myself further, I
> would be very grateful.
> 
> My problem is this: I want to mpl::and_ together a bunch of
> predicates. mpl::and_ has a limit of 4 arguments. So this is wrong:
> 
>   mpl::and_< pred1, pred2, pred3, pred4, pred5 >
> 
> but this is ok:
> 
>   mpl::and_< pred1, pred2, pred3, mpl::and_< pred4, pred5 > >

Would folding a predicate sequence using and_ work?