diff options
Diffstat (limited to 'lib/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c')
-rw-r--r-- | lib/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c b/lib/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c new file mode 100644 index 0000000000..c4033364d4 --- /dev/null +++ b/lib/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c @@ -0,0 +1,27 @@ +#include <ccan/typesafe_cb/typesafe_cb.h> +#include <stdlib.h> + +void _callback(void (*fn)(void *arg), void *arg); +void _callback(void (*fn)(void *arg), void *arg) +{ + fn(arg); +} + +/* Callback is set up to warn if arg isn't a pointer (since it won't + * pass cleanly to _callback's second arg. */ +#define callback(fn, arg) \ + _callback(typesafe_cb(void, (fn), (arg)), (arg)) + +void my_callback(int something); +void my_callback(int something) +{ +} + +int main(int argc, char *argv[]) +{ +#ifdef FAIL + /* This fails due to arg, not due to cast. */ + callback(my_callback, 100); +#endif + return 0; +} |