[Boost-users] Boost.Algorithm: Functors must be CopyConstructible

Several functors in Boost.Algorithm do not fulfill CopyConstructable requirements, e.g. case_conv.hpp: to_lowerF, to_upperF formatter_regex.hpp: regex_formatF I propose to replace their reference members by either corresponding pointers or by boost::reference<>'s. Greetings from Bremen, Daniel Krügler