[boost] Re: [mpl]mpl::plus and non Integral Constants

From: Aleksey Gurtovoy (agurtovoy_at_[hidden])
Date: 2005-01-31 20:37:48

Andy Little writes:
> Reading the mpl documentation it states that boost::mpl::plus is
> expected to be specialised for non Integral Constants.
>
> Therefore should the following work ?:
>
> typedef boost::mpl::plus<int,int>::type int_plus_int_type; // eg   int 
> presumably
>
> OTOH it could be said that:
>
>  mpl::plus<int_<1>, int_<1> >::type
>
> and
>
> mpl::plus<int,int>::type
>
> are conceptually different and that therefore mpl::plus<int,int>
> should be(remain) invalid.
>
> Any thoughts?

I'm strongly in favor of the latter premise.

-- 
Aleksey Gurtovoy
MetaCommunications Engineering