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-rw-r--r--include/ruby/ruby.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index ae55b0d..0aebfa4 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -775,7 +775,7 @@ struct RObject {
struct RBasic basic;
union {
struct {
- long numiv;
+ long numiv; /* only uses 32-bits */
VALUE *ivptr;
struct st_table *iv_index_tbl; /* shortcut for RCLASS_IV_INDEX_TBL(rb_obj_class(obj)) */
} heap;