Andy Little wrote:

Hi,

Hi Andy,

I am implementing the mpl math operators for my physical_quantities type. Ideally I would like to declare a boost::mpl::power metafunction. I would like to do:

typedef Power_type<...> P ; pq_xx a;

boost::mpl::power< pq_xx, P >::type b = run_time_power<P>( a);

OTOH: boost::mpl::power< P, pq_xx >::type b = run_time_power<P>( a); (param order ... TBD)

I am assuming it is ok to specialise plus, minus, multiplies etc in the boost::mpl namespace?

Yes, totally.

I could of course put power (or whatever name) outside the boost::mpl namespace but that is not ideal. Any thoughts?

If you contribute an implementation for it, I'd be happy to put the metafunction in the library. -- Aleksey Gurtovoy MetaCommunications Engineering