Subject: Re: [Boost-users] [Proto] Limiting function arity in grammar
From: Joel Falcou (joel.falcou_at_[hidden])
Date: 2008-10-02 16:36:46
Eric Niebler a écrit :
> You can use proto::if_ with some mpl meta-functions and
> proto::arity_of. See below:
Ah, I missed that v_v Times to print out the new docs and pin it on my
office walls
> struct ArityLessThan3
> : proto::or_<
> proto::terminal<_>
> , proto::and_<
> proto::function< proto::vararg<ArityLessThan3> >
> , proto::if_< mpl::less< proto::arity_of<_>, mpl::long_<4>
> >() >
> >
> >
> {};
Shouldn't it be : proto::function< _, proto::vararg<ArityLessThan3> > ?
or does vararg also count the function tag ?
-- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35