How to measure the actual memory footprint of an instance of a struct?

[stuchlej (Mikoláš Stuchlík)]

@tera

If it's just a POD

If you don't know what type would qualify as a POD @ShikiSuen , there is a hidden function that does just that:

Is there a way to differentiate Swift types and C types at runtime?

There is the unofficial _isPOD(_:) function you can use. As with all underscore APIs from swift this function might change or go away at any time.