Neal Becker wrote:

Surely this is a typo: ./boost/wave/util/flex_string.hpp:1644: warning: statement has no effect

flex_string& append(const value_type* s, const size_type n) { Invariant checker(*this); checker;

This is taken as is from Andrei's code. I guess he inserted that to avoid the checker get's optimized away or to suppress some hyperfluid warning or such. I'm not sure what to do with this. Regards Hartmut