1 files changed, 7 insertions, 1 deletions
diff --git a/constant.h b/constant.h
index 8c854bfffa..c7de5da533 100644
--- a/constant.h
+++ b/constant.h
@@ -13,9 +13,15 @@
 
 typedef enum {
     CONST_PUBLIC    = 0x00,
-    CONST_PRIVATE   = 0x01
+    CONST_PRIVATE,
+    CONST_VISIBILITY_MAX
 } rb_const_flag_t;
 
+#define RB_CONST_PRIVATE_P(ce) \
+    ((ce)->flag == CONST_PRIVATE)
+#define RB_CONST_PUBLIC_P(ce) \
+    ((ce)->flag == CONST_PUBLIC)
+
 typedef struct rb_const_entry_struct {
     rb_const_flag_t flag;
     int line;