On 11/18/2010 3:58 AM, Thomas Heller wrote: > Btw, i just finished implementing the unpack feature we were talking about
Awesome! > ... > Short description: > > Calling some_callable with the expression unpacked: > proto::when<proto::_, some_callable(unpack)> > > Calling some_callable with an arbitrary sequence unpacked: > proto::when<proto::_, some_callable(unpack(some_fusion_seq())> > > Calling some_callable with an arbitrary sequence unpacked, and apply a proto > transform before: > proto::when<proto::_, some_callable(unpack(some_fusion_seq(), > some_transform)> Perfect. > Additionally it is possible to have arbitrary parameters before or after > unpack. Whoa. You said that was going to be impossible or very expensive. I'[m impressed. > The implementation is located at: > http://svn.boost.org/svn/boost/sandbox/SOC/2010/phoenix3/boost/phoenix/core/unpack.hpp > > Just a whole mess of preprocessor generation ... this is not really fast to > compile at the moment, PROTO_MAX_ARITY of 5 is fine, everything above will > just blow the compiler :( That's a bit worrying. When I have some time, I'll try to grok your work and see if there's any way to speed things up. Thanks for your work on this! -- Eric Niebler BoostPro Computing http://www.boostpro.com _______________________________________________ proto mailing list proto@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/proto
