id summary reporter owner description type status milestone component version severity resolution keywords cc 12104 windows - Visual Studio 2015 Update 2 RC gives out warning C4191 in thread_primitive.hpp Shane Mathews (oneZero Financial Systems) viboes " {{{ thread/win32/thread_primitives.hpp(312): warning C4191: 'type cast': unsafe conversion from 'boost::detail::win32::farproc_t' to 'boost::detail::win32::detail::gettickcount64_t' }}} Calling this function through the result pointer may cause your program to fail" Bugs assigned To Be Determined thread Boost 1.60.0 Problem