Google
 
Trailing-Edge - PDP-10 Archives - SRI_NIC_PERM_FS_1_19910112 - c/kcc5/bugoff.c
There is 1 other file named bugoff.c in the archive. Click here to see a list.
#define offsetof(s,m) \
	( (char *) (&((struct s *)0)->m) - (char *)0)
struct foo {
	short a,b,c;
};
int res;
main()
{
    res = offsetof(foo,c);
}