Comment by smj-edison

Interesting, this is pretty cool! I'm guessing it doesn't work with pointer to int casts though? I'm using NaN packing, so I necessarily have to cast it to an integer.

EDIT: though I'm considering switching to a tag + 64 bit union, because of 54 bit addressing and pointer tagging. It makes it tricky to get my data layout right though, since it makes all of the structures larger.