[KerrAvon]

If you're implementing C23 compatibility, you could do

  auto p = (thing_t *)malloc(sizeof(thing_t));

and you get both DRY and avoid (void *) casting.

[dcuthbertson]

> and you get both DRY and avoid (void *) casting.

While that line of code is DRY, it doesn't avoid casting "void *" to "thing_t *".