X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftypesafe_cb%2Ftest%2Fcompile_fail-typesafe_cb-int.c;fp=ccan%2Ftypesafe_cb%2Ftest%2Fcompile_fail-typesafe_cb-int.c;h=54d0e7bac3a36094303555d699775590d39e6eb7;hp=0000000000000000000000000000000000000000;hb=650c775ff00cccd03fc84e7789a03c51d9839004;hpb=c8acddea39d222312102952e91c32cfe4dd2cea0

diff --git a/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c b/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c
new file mode 100644
index 00000000..54d0e7ba
--- /dev/null
+++ b/ccan/typesafe_cb/test/compile_fail-typesafe_cb-int.c
@@ -0,0 +1,27 @@
+#include "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;
+}