id summary reporter owner description type status milestone component version severity resolution keywords cc 6975 lexical_cast produces different answers with 53-bit FPU precision Jonathan Jones Antony Polukhin "For some subset of floating point strings, if you use lexical_cast, it will produce different answers than if you use std::atof or reading from std::istringstream. However, this only happens when you use 53 bit FPU precision as opposed to 64 bit. A duplication program is attached, which I've only tried on g++/64 bit-Intel because of the code modifying the FPU settings." Support Requests closed Boost 1.58.0 lexical_cast Boost 1.49.0 Cosmetic fixed