| // RUN: %clang_cc1 -verify -fsyntax-only %s |
| |
| @class NSString; |
| |
| extern NSString *fa2 (const NSString *) __attribute__((format_arg(1))); |
| extern NSString *fa3 (NSString *) __attribute__((format_arg(1))); |
| |
| extern void fc1 (const NSString *) __attribute__((format_arg)); // expected-error {{'format_arg' attribute takes one argument}} |
| extern void fc2 (const NSString *) __attribute__((format_arg())); // expected-error {{'format_arg' attribute takes one argument}} |
| extern void fc3 (const NSString *) __attribute__((format_arg(1, 2))); // expected-error {{'format_arg' attribute takes one argument}} |
| |
| struct s1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to Objective-C methods and non-K&R-style functions}} |
| union u1 { int i; } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to}} |
| enum e1 { E1V0 } __attribute__((format_arg(1))); // expected-warning {{'format_arg' attribute only applies to}} |
| |
| extern NSString *ff3 (const NSString *) __attribute__((format_arg(3-2))); |
| extern NSString *ff4 (const NSString *) __attribute__((format_arg(foo))); // expected-error {{use of undeclared identifier 'foo'}} |
| |
| /* format_arg formats must take and return a string. */ |
| extern NSString *fi0 (int) __attribute__((format_arg(1))); // expected-error {{format argument not a string type}} |
| extern NSString *fi1 (NSString *) __attribute__((format_arg(1))); |
| |
| extern NSString *fi2 (NSString *) __attribute__((format_arg(1))); |
| |
| extern int fi3 (const NSString *) __attribute__((format_arg(1))); // expected-error {{function does not return NSString}} |
| extern NSString *fi4 (const NSString *) __attribute__((format_arg(1))); |
| extern NSString *fi5 (const NSString *) __attribute__((format_arg(1))); |