fix error reporting for date overflow; update code size in README
diff --git a/example.h b/example.h
index f5a37d9..b5bcf4b 100644
--- a/example.h
+++ b/example.h
@@ -13,6 +13,8 @@
 #ifndef qcborExample_h
 #define qcborExample_h
 
+#include <stdint.h>
+
 int32_t RunQCborExample(void);
 
 #endif /* qcborExample_h */