Re: [Boost-users] [mpl] Hierarchy Generation

I don't know whether it is important for Scott, but the following example is failed to compile. .............. int main() { typedef make_features<mpl::vector<int, char, double> >::type f1; typedef make_features<mpl::vector<double, int> >::type f4; BOOST_MPL_ASSERT((boost::is_base_and_derived<f4, f1>)); } In other words the order of "features" is taken into account.