1#include <stdio.h>
2#include <stdlib.h>
3
4int
5main (void)
6{
7#define test(ret, args...) \
8  printf (args); 		\
9  if (printf (args) != ret)	\
10    abort ();
11  test (5, "hello");
12  test (6, "hello\n");
13  test (1, "a");
14  test (0, "");
15  test (5, "%s", "hello");
16  test (6, "%s", "hello\n");
17  test (1, "%s", "a");
18  test (0, "%s", "");
19  test (1, "%c", 'x');
20  test (7, "%s\n", "hello\n");
21  test (2, "%d\n", 0);
22  return 0;
23}
24