1 /* Copyright (C) 2000  Free Software Foundation.
2 
3    Ensure all expected transformations of builtin printf occur and
4    that we honor side effects in the arguments.
5 
6    Written by Kaveh R. Ghazi, 12/4/2000.  */
7 
8 extern int printf (const char *, ...);
9 extern void abort(void);
10 
11 int main()
12 {
13   const char *const s1 = "hello world";
14   const char *const s2[] = { s1, 0 }, *const*s3;
15 
16   printf ("%s\n", "hello");
17   printf ("%s\n", *s2);
18   s3 = s2;
19   printf ("%s\n", *s3++);
20   if (s3 != s2+1 || *s3 != 0)
21     abort();
22 
23   printf ("%c", '\n');
24   printf ("%c", **s2);
25   s3 = s2;
26   printf ("%c", **s3++);
27   if (s3 != s2+1 || *s3 != 0)
28     abort();
29 
30   printf ("\n");
31   printf ("hello world\n");
32 
33   /* Test at least one instance of the __builtin_ style.  We do this
34      to ensure that it works and that the prototype is correct.  */
35   __builtin_printf ("%s\n", "hello");
36   /* These builtin stubs are called by __builtin_printf, ensure their
37      prototypes are set correctly too.  */
38   __builtin_putchar ('\n');
39   __builtin_puts ("hello");
40 
41   return 0;
42 }
43 
44 #ifdef __OPTIMIZE__
45 /* When optimizing, all the above cases should be transformed into
46    something else.  So any remaining calls to the original function
47    should abort.  */
48 static int
49 printf (const char *string, ...)
50 {
51   abort();
52 }
53 #endif
54