| 1 | // RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks |
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| 2 | |
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| 3 | #include <stdarg.h> |
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| 4 | |
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| 5 | int main() { |
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| 6 | void (^b) (int arg, const char * format, ...) __attribute__ ((__format__ (__printf__, 1, 3))) = // expected-error {{format argument not a string type}} |
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| 7 | ^ __attribute__ ((__format__ (__printf__, 1, 3))) (int arg, const char * format, ...) {}; // expected-error {{format argument not a string type}} |
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| 8 | |
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| 9 | void (^z) (int arg, const char * format, ...) __attribute__ ((__format__ (__printf__, 2, 3))) = ^ __attribute__ ((__format__ (__printf__, 2, 3))) (int arg, const char * format, ...) {}; |
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| 10 | |
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| 11 | z(1, "%s", 1); // expected-warning{{format specifies type 'char *' but the argument has type 'int'}} |
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| 12 | z(1, "%s", "HELLO"); // no-warning |
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| 13 | } |
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| 14 | |
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| 15 | void multi_attr(va_list ap, int *x, long *y) { |
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| 16 | // Handle block with multiple format attributes. |
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| 17 | void (^vprintf_scanf) (const char *, va_list, const char *, ...) __attribute__((__format__(__printf__, 1, 0))) __attribute__((__format__(__scanf__, 3, 4))) = |
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| 18 | ^ __attribute__((__format__(__printf__, 1, 0))) __attribute__((__format__(__scanf__, 3, 4))) (const char *str, va_list args, const char *fmt, ...) {}; |
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| 19 | |
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| 20 | vprintf_scanf("%", ap, "%d"); // expected-warning {{incomplete format specifier}}, expected-warning {{more '%' conversions than data arguments}} |
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| 21 | } |
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| 22 | |
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