1 files changed, 6 insertions, 0 deletions
diff --git a/object.c b/object.c
index 2bcfbc4c3c..81d1ed6f6f 100644
--- a/object.c
+++ b/object.c
@@ -92,6 +92,12 @@ static VALUE rb_cFalseClass_to_s;
 
 /*! \endcond */
 
+size_t
+rb_obj_embedded_size(uint32_t numiv)
+{
+    return offsetof(struct RObject, as.ary) + (sizeof(VALUE) * numiv);
+}
+
 VALUE
 rb_obj_hide(VALUE obj)
 {