id summary reporter owner description type status milestone component version severity resolution keywords cc 13646 Boost silently disables some compiler warnings. daniel.geelen@… John Maddock "It seems some warnings (such as signed/unsigned mismatch) in Visual Studio no longer trigger after #including . This seems to be caused by unbalanced push/pop of warning levels in these headers: * type_traits/has_minus.hpp * type_traits/has_minus_assign.hpp * type_traits/has_plus_assign.hpp " Bugs closed To Be Determined type_traits Boost 1.67.0 Problem fixed