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

Hi, In Phoenix2 I used to have the following code to add expressions of type pow<N>(... expr...) which where useful for expressions involving Boost.Units. Is it possible to do something similar with Phoenix3. The usage if macros in the tutorial examples obscures how to add template parameters to the phoenix expression. In Phoenix2 it was straight forward, but I can figure out how to do this in Phoenix3. // phoenix2 code: #include namespace boost{ namespace phoenix{ template<long N> struct pow_eval{ template struct result{ typedef typename boost::units::power_typeof_helper::type, boost::units::static_rational<N> >::type type; }; template static RT eval(Env const& env, Arg_ const& arg_){ return boost::units::pow<N>(arg_.eval(env)); } }; template actor > > pow(actor const& arg_){ return compose(arg_); } }} use as pow<3>(arg1)(l)