--- /dev/null
+#include <ccan/tcon/tcon.h>
+#include <stdlib.h>
+
+struct container {
+ void *p;
+};
+
+struct int_container {
+ struct container raw;
+ TCON(int tc);
+};
+
+struct charp_and_int_container {
+ struct container raw;
+ TCON(int tc1; char *tc2);
+};
+
+int main(int argc, char *argv[])
+{
+ struct int_container icon;
+ struct charp_and_int_container cicon;
+
+ tcon_check(&icon, tc, 7)->raw.p = NULL;
+ tcon_check(&cicon, tc1, 7)->raw.p = argv[0];
+ tcon_check(&cicon, tc2, argv[0])->raw.p = argv[0];
+ return 0;
+}