id summary reporter owner description type status milestone component version severity resolution keywords cc 9360 boost::format char->hex nen777w@… Samuel Krempp "{{{ long l = 0x11223344; unsigned char c = 0x55; std::string s = (boost::format(""%04X - %01X"") % l % c).str(); //<-- ""11223344 - U"" ??? char ccc[10] = {0}; sprintf(ccc, ""%01x"", c); //<-- ""55"" OK! }}}" Bugs closed To Be Determined format Boost 1.54.0 Problem duplicate