boost::cnv::printf
// In header: <boost/convert/printf.hpp> struct printf : public boost::cnv::cnvbase< boost::cnv::printf > { // types typedef boost::cnv::printf this_type; typedef boost::cnv::cnvbase< this_type > base_type; // public member functions template<typename in_type> cnv::range< char * > to_str(in_type, char *) const; template<typename string_type, typename out_type> void str_to(cnv::range< string_type >, optional< out_type > &) const; // private member functions template<typename Type> int pos() const; char_cptr printf_format(int) const; char_cptr sscanf_format(int) const; };