Re: [Boost-users] [phoenix] v3 extension mechanism for template functions

On Apr 19, 11:58 pm, alfC wrote:

makes sense. Following your steps and the code base in  boost/phoenix/fusion/at.hpp and boost/proto/functional/fusion/at.hpp I was able to add the pow<N>(...) expression (which works for boost.units, and doubles), see below.

BTW, using (note the actor<...> pattern (see below) nicely lifts an ambiguity between boost::units::pow and the newly created boost::phoenix::pow. I hope the boost.units maintainers take now and include an adaptor like this to boost/units/phoenix.hpp template typename expression::pow::type const pow(actor<Arg> const& arg){ return expression::pow

::make(mpl::int_<N>(), arg); }

Thanks, Alfredo