From that same post, though, referencing the C 11 standard

> "All pointers to structure types shall have the same representation and alignment requirements as each other."

And so the concern wouldn't apply to this pattern?

I've been out of the c/c++ game for a long time, but it's always interesting to see what the edge, or non-guaranteed, elements are going to be whenever anyone claims:

> all|every|always ... in C.

Particularly function pointers may have different sizes than what you'd expect. Thus it's best practice to always use sizeof() for the specific type of pointer you are interested in if you need to know it at runtime just as with any normal non-pointer type.

Right, my bad. It's really struct pointers that are guaranteed to be the same size.

In modern times, this only applied to MSDOS