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// RUN: clang-cc -fblocks -fsyntax-only -verify %s
void (^e) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (1,1)));
int main() {
void (^bbad) (int arg, const char * format) __attribute__ ((__sentinel__)) ; // expected-warning {{sentinel' attribute only supported for variadic blocks}}
void (^b) (int arg, const char * format, ...) __attribute__ ((__sentinel__)) = // expected-note {{block has been explicitly marked sentinel here}}
^ __attribute__ ((__sentinel__)) (int arg, const char * format, ...) {};
void (^z) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (2))) = ^ __attribute__ ((__sentinel__ (2))) (int arg, const char * format, ...) {}; // expected-note {{block has been explicitly marked sentinel here}}
void (^y) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (5))) = ^ __attribute__ ((__sentinel__ (5))) (int arg, const char * format, ...) {}; // expected-note {{block has been explicitly marked sentinel here}}
b(1, "%s", (void*)0); // OK
b(1, "%s", 0); // expected-warning {{missing sentinel in block call}}
z(1, "%s",4 ,1,0); // expected-warning {{missing sentinel in block call}}
z(1, "%s", (void*)0, 1, 0); // OK
y(1, "%s", 1,2,3,4,5,6,7); // expected-warning {{missing sentinel in block call}}
y(1, "%s", (void*)0,3,4,5,6,7); // OK
}
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