[cryptonector]

That helps.

In my mind I was picturing a double-wide pointer that (assuming 48-bit address spaces) carries 20 bits of type information, a pointer to an allocation descriptor, a pointer to / into the object, and 16-bit CRC of the allocation descriptor. The allocation descriptor itself would have a base address and size, a generation number, and maybe some bits for something else (what? perhaps another CRC?).

However, this would change the ABI...

And yes, I thought you were encoding the C type of the object pointed to in the pointer, which is why I was thinking wide pointers.

Thanks for the clarification!

[stensal]

I changed it to "dynamic pointer typing". Thanks for your questions.