1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 int main ()
5 {
6 struct foo {
7   int zoo;
8   int bar [10];
9   float baz;
10 };
11 
12 #define offsetof(S,F) ((size_t) & (((S *) 0)->F))
13 
14 struct foo *k = (struct foo *) malloc (offsetof (struct foo, bar[4]));
15 k->bar[1] = 9;
16 free (k);
17 return 0;
18 }
19