Thread: question about declaring function extern

Hi. I see people declare functions as 'extern' in header (.h) files.
Is this what I should be doing?

someheader.h

Code:

/* someheader.h */

extern int func(int a, int b);

func.c

Code:

/* func.c */
#include "someheader.h"

int func(int a, int b)
{
  return a * b;
}

I usually do the same as above, but don't put the 'extern' in front
of the function declaration in the header file, and it seems to work.
Is this ok, or should I prepend it with extern?

thanks alot

functoins are by default extern - so you do not need to specify it explicitely...

When function has a static linkage - you need to specify it explicitely... but in this case - you do not want to put the function prototype in the header.

thanks vart