You shouldn't see any issues until you hit the size limits of the data types and/or have related alignment issues. You'll notice these types here: https://devel

You shouldn't see any issues until you hit the size limits of the data types and/or have related alignment issues. You'll notice these types here: https://developer.apple.com/library/mac/documentation/Darwin/Conceptual/64bitPorting/transition/transition.html#//apple_ref/doc/uid/TP40001064-CH207-TPXREF101 https://developer.apple.com/library/mac/documentation/Darwin...