id summary reporter owner description type status milestone component version severity resolution keywords cc 12226 Microsoft compiler bug with boost::spirit::traits::absolute_value Sergey Polsky Joel de Guzman "Microsoft optimizing compiler (19.00.23918 for x86 from Visual studio 2015) removes code of boost::spirit::traits::absolute_value::call for int, long and boost::long_long_type, and absolute_value::call((int)-1) returns 4294967295 instead of 1. " Bugs closed To Be Determined spirit Boost 1.61.0 Problem fixed compiler