On Fri, 10 Jan 2003 05:05:17 +0100, David Abrahams wrote: > Daniel Frey <[EMAIL PROTECTED]> writes: > >> On Thu, 09 Jan 2003 19:28:17 +0100, David Abrahams wrote: >> >>> typedef mpl::vector<bool,int,double,string> legal_types; >>> BOOST_STATIC_ASSERT((mpl::contains<legal_types,T>::value)); >> >> Now that's elegant! I think I should have a look at the MPL soon :)) >> One question: 'contains' seems to have the problem that it's not very >> obvious whether it takes the 'vector' as first or second argument. >> >> Is it possible to add a "member function" like this: >> >> typedef mpl::vector< bool, int, double, std::string > legal_types; >> BOOST_STATIC_ASSERT( legal_types::contains< T >::value ); > > Possible but not desirable, IMO. Contains is a generalized sequence > algorithm like std::find.
After reading some docs of the MPL, I found out that it tries to mimic the STL. The question is, whether this is appropriate for this domain, but I will have to think about this much longer before I can say anything useful :) Anyway, the MPL looks really promissing as it is now, I think it will be a very useful library. Congratulations to the authors. Regards, Daniel _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
