| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
| 2 | |
| 3 | int printf(const char *, ...); |
| 4 | |
| 5 | const char* f(const char *s) __attribute__((format_arg(1))); |
| 6 | |
| 7 | const char *h(const char *msg1, const char *msg2) |
| 8 | __attribute__((__format_arg__(1))) __attribute__((__format_arg__(2))); |
| 9 | |
| 10 | void g(const char *s) { |
| 11 | printf("%d", 123); |
| 12 | printf("%d %d", 123); // expected-warning{{more '%' conversions than data arguments}} |
| 13 | |
| 14 | printf(f("%d"), 123); |
| 15 | printf(f("%d %d"), 123); // expected-warning{{more '%' conversions than data arguments}} |
| 16 | |
| 17 | printf(h( |
| 18 | "", // expected-warning {{format string is empty}} |
| 19 | "" // expected-warning {{format string is empty}} |
| 20 | ), 123); |
| 21 | printf(h( |
| 22 | "%d", |
| 23 | "" // expected-warning {{format string is empty}} |
| 24 | ), 123); |
| 25 | printf(h( |
| 26 | "", // expected-warning {{format string is empty}} |
| 27 | "%d" |
| 28 | ), 123); |
| 29 | printf(h("%d", "%d"), 123); |
| 30 | } |
| 31 | |