core: add CS_ERR_SKIPDATA error code to report when code access irrelevant info in SKIPDATA mode
diff --git a/cs.c b/cs.c
index 4253880..c627657 100644
--- a/cs.c
+++ b/cs.c
@@ -162,6 +162,8 @@
 			return "Different API version between core & binding (CS_ERR_VERSION)";
 		case CS_ERR_DIET:
 			return "Information irrelevant in diet engine (CS_ERR_DIET)";
+		case CS_ERR_SKIPDATA:
+			return "Information irrelevant for 'data' instruction in SKIPDATA mode (CS_ERR_SKIPDATA)";
 	}
 }