diff options
Diffstat (limited to 'clang/test/Sema/block-sentinel-attribute.c')
| -rw-r--r-- | clang/test/Sema/block-sentinel-attribute.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/clang/test/Sema/block-sentinel-attribute.c b/clang/test/Sema/block-sentinel-attribute.c new file mode 100644 index 0000000..daf0a95 --- /dev/null +++ b/clang/test/Sema/block-sentinel-attribute.c @@ -0,0 +1,25 @@ +// RUN: %clang_cc1 -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}} + bbad = ^void (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 + +} + |