on Sun Jul 27 2008, noman javed wrote:

I have already tried this and got the following error messeges

example.cpp: In instantiation of ‘Poplist::apply >’: example.cpp:51: instantiated from here example.cpp:20: error: invalid use of undefined type ‘struct boost::mpl::pop_front >’ ../boost_1_35_0/boost/mpl/pop_front_fwd.hpp:20: error: declaration of ‘struct boost::mpl::pop_front >’

Not sure what "this" is that you tried, but it looks like you're missing a header. Perhaps boost/mpl/pop_front.hpp HTH, -- Dave Abrahams BoostPro Computing http://www.boostpro.com