#include "apetag.h"
#include "internal.h"
-#define APE_TAG_FLAG_CONTAINS_HEADER (1 << 31)
+#define APE_TAG_FLAG_CONTAINS_HEADER (1U << 31)
#define APE_TAG_FLAG_LACKS_FOOTER (1 << 30)
#define APE_TAG_FLAG_IS_HEADER (1 << 29)
#define APE_TAG_FLAG_IS_BINARY (1 << 1)