object.h: make GC color uint8_t that fits in 3 bits

matz · matz · commit afcf7fc86d11 · 2023-05-31T08:27:23.000+09:00
diff --git a/include/mruby/object.h b/include/mruby/object.h
@@ -11,7 +11,7 @@
   struct RClass *c;       \
   struct RBasic *gcnext;  \
   enum mrb_vtype tt:8;    \
-  uint32_t color:3;       \
+  uint8_t color:3;        \
   uint32_t flags:21
 
 #define MRB_FLAG_TEST(obj, flag) ((obj)->flags & (flag))
