Daniel Wallin wrote:

Yes, that's correct. Although the code has been moved to the Boost CVS and the namespace has been changed to 'parameter'.

Oh, that's where it is, now. Cool! A second look at the new code revealed that much of the type-extraction functionality I sought has already been implemented in <boost/parameter/aux_/arg_list.hpp>, under the nested struct 'key_value_type' (lines 71-78 and 186-196). However, this struct is defined only for older compilers. Can the definitions be moved out of the conditional macro blocks? That way, a type-extraction metafunction like the following would work: template < class ArgList, class KW, class Default > struct get_key_value_type : mpl::apply2< typename ArgList::key_value_type , KW , Default > { }

Thank you. I've merged your macro change into the trunk, but I'm holding off the type-extraction code until we have completed the changes we are currently working on.

No problem. Just don't take too long! My multi-state mazes project makes heavy use of this library. I'm currently working on documentation and a 2-D demo, and I hope to release it to the OS community in three or four weeks. Cromwell D. Enage __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com