On: You Can't Always Hash Pointers in C (2016)

[rurban]

sure, but in practice everybody knows the actually used bits of every pointers per platform. on amd64 e.g. it's the 2 lowest and 16 highest which need to be masked off for comparison. it's simply platform and vm dependent.

I know very well where and how I'm able to compare ptrs in a hash table, and I'm doing it all the time. just complaining out loud is no solution.