id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 7699,theres no way to solve that for the hash function : warning C4244,anonymous,Robert Ramey,"warning C4244: 'argument' : conversion from 'std::streamsize' to 'size_t', possible loss of data compiling this: basic_binary_iprimitive.hpp example code: namespace boost { template <> struct hash { inline size_t operator()(const ATypeHere & obj_p ) const { // return something } }; } If you change size_t to std::streamsize, you will get the exactly same warning, but inverted (in a different place) ",Support Requests,closed,To Be Determined,serialization,Boost 1.50.0,Problem,fixed,warning fix,