3 ms·

Are there any practical cases where you'd want "extern void foo"?

• veltas 4y ago
  You could use it for getting an address that will be linked in later. On GCC I get a warning (which I don't think I can mask) for taking the address of such an object, because its expression is type void. A better way of achieving this is usually to declare something like extern unsigned char foo[] instead, but that has a type other than void*.