1 files changed, 17 insertions, 0 deletions
diff --git a/lib/ccan/typesafe_cb/test/compile_ok-typesafe_cb-NULL.c b/lib/ccan/typesafe_cb/test/compile_ok-typesafe_cb-NULL.c
new file mode 100644
index 00000000000..265de8b14ee
--- /dev/null
+++ b/lib/ccan/typesafe_cb/test/compile_ok-typesafe_cb-NULL.c
@@ -0,0 +1,17 @@
+#include <ccan/typesafe_cb/typesafe_cb.h>
+#include <stdlib.h>
+
+/* NULL args for callback function should be OK for normal and _def. */
+
+static void _register_callback(void (*cb)(const void *arg), const void *arg)
+{
+}
+
+#define register_callback(cb, arg)				\
+	_register_callback(typesafe_cb(void, const void *, (cb), (arg)), (arg))
+
+int main(int argc, char *argv[])
+{
+	register_callback(NULL, "hello world");
+	return 0;
+}