ok(int * a,int * b)1 static int ok(int *a, int *b)
2 {
3 return a - b;
4 }
5
6 struct s {
7 int a, b, c;
8 };
9
ko(struct s * a,struct s * b)10 static int ko(struct s *a, struct s *b)
11 {
12 return a - b;
13 }
14
15 /*
16 * check-name: ptr-sub-blows
17 * check-command: sparse -Wptr-subtraction-blows $file
18 *
19 * check-error-start
20 ptr-sub-blows.c:12:18: warning: potentially expensive pointer subtraction
21 ptr-sub-blows.c:12:18: 'struct s' has a non-power-of-2 size: 12
22 * check-error-end
23 */
24