I'm trying to fix floating_point_promotion. The template is very simple, it transforms cv qualified float to cv qualified double but borland doesn't understand cv specializations. Since I don't remember how to workaround borland problems, I rely on MPL. I wrote the following template<class T> struct floating_point_promotion : mpl::at< mpl::vector< T, double, double const, double volatile, double const volatile > , mpl::plus< is_same<T, float> , mpl::multiplies< is_same<T, float const> , mpl::int_<2> > , mpl::multiplies< is_same<T, float volatile> , mpl::int_<3> > , mpl::multiplies< is_same<T, float const volatile>, mpl::int_<4> > > > { }; I don't know why, but borland 5.1.1 strips cv from float so float const is promoted to double (without const). Can someone with access to borland later than deprecated 5.1.1 check promote_basic_test.cpp ? The patch is attached. -- Alexander Nasonov http://nasonov.blogspot.com I`m never going to be famous. My name will never be writ large on the roster of Those Who Do Things. I don`t do any thing. Not one single thing. I used to bite my nails, but I don`t even do that any more. -- Dorothy Parker -- This quote is generated by: /usr/pkg/bin/curl -L http://tinyurl.com/veusy \ | sed -e 's/^document\.write(.//' -e 's/.);$/ --/' \ -e 's/<[^>]*>//g' -e 's/^More quotes from //' \ | fmt | tee ~/.signature-quote