id summary reporter owner description type status milestone component version severity resolution keywords cc 10871 Warnings in Boost.System when built on 64 bit system on MSVC Niall Douglas Beman Dawes " .\boost/system/detail/error_code.ipp(384) : warning C4267: 'argument' : conversion from 'size_t' to 'DWORD', possible loss of data .\boost/system/detail/error_code.ipp(401) : warning C4267: 'initializing' : conversion from 'size_t' to 'int', possible loss of data " Bugs new To Be Determined system Boost 1.57.0 Problem