21 lines
1.3 KiB
C
21 lines
1.3 KiB
C
// RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks
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#include <stdarg.h>
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int main() {
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void (^b) (int arg, const char * format, ...) __attribute__ ((__format__ (__printf__, 1, 3))) = // expected-error {{format argument not a string type}}
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^ __attribute__ ((__format__ (__printf__, 1, 3))) (int arg, const char * format, ...) {}; // expected-error {{format argument not a string type}}
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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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z(1, "%s", 1); // expected-warning{{format specifies type 'char *' but the argument has type 'int'}}
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z(1, "%s", "HELLO"); // no-warning
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}
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void multi_attr(va_list ap, int *x, long *y) {
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// Handle block with multiple format attributes.
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void (^vprintf_scanf) (const char *, va_list, const char *, ...) __attribute__((__format__(__printf__, 1, 0))) __attribute__((__format__(__scanf__, 3, 4))) =
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^ __attribute__((__format__(__printf__, 1, 0))) __attribute__((__format__(__scanf__, 3, 4))) (const char *str, va_list args, const char *fmt, ...) {};
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vprintf_scanf("%", ap, "%d"); // expected-warning {{incomplete format specifier}}, expected-warning {{more '%' conversions than data arguments}}
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}
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