5 extern NSString *fa2 (const NSString *) __attribute__((format_arg(1)));  function
6 extern NSString *fa3 (NSString *) __attribute__((format_arg(1)));  function
8 extern void fc1 (const NSString *) __attribute__((format_arg));  // expected-error {{'format_arg' a…  function
9 extern void fc2 (const NSString *) __attribute__((format_arg())); // expected-error {{'format_arg' …  function
10 extern void fc3 (const NSString *) __attribute__((format_arg(1, 2))); // expected-error {{'format_a…  function
12 struct s1 { int i; } __attribute__((format_arg(1)));  // expected-warning {{'format_arg' attribute …  function
13 union u1 { int i; } __attribute__((format_arg(1)));  // expected-warning {{'format_arg' attribute o…  function
14 enum e1 { E1V0 } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only …  function
16 extern NSString *ff3 (const NSString *) __attribute__((format_arg(3-2)));  function
17 extern NSString *ff4 (const NSString *) __attribute__((format_arg(foo))); // expected-error {{use o…  function
20 extern NSString *fi0 (int) __attribute__((format_arg(1)));  // expected-error {{format argument not…  function
21 extern NSString *fi1 (NSString *) __attribute__((format_arg(1)));   function
23 extern NSString *fi2 (NSString *) __attribute__((format_arg(1)));   function
25 extern int fi3 (const NSString *) __attribute__((format_arg(1)));  // expected-error {{function doe…  function
26 extern NSString *fi4 (const NSString *) __attribute__((format_arg(1)));   function
27 extern NSString *fi5 (const NSString *) __attribute__((format_arg(1)));   function