From 739dad6e87e91c74cda794ae3f33cd94a7c33eb1 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Wed, 16 Nov 2016 01:29:04 +0900
Subject: Fixed a memory problem in Array#to_h

Reported from Alex Snaps via Mathieu Leduc-Hamel,
both from shopify.com.  Thank you!
---
 include/mruby/array.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'include')

diff --git a/include/mruby/array.h b/include/mruby/array.h
index bd78db066..8f9d5d502 100644
--- a/include/mruby/array.h
+++ b/include/mruby/array.h
@@ -134,6 +134,15 @@ mrb_ary_len(mrb_state *mrb, mrb_value ary)
   return RARRAY_LEN(ary);
 }
 
+static inline mrb_value
+ary_elt(mrb_value ary, mrb_int offset)
+{
+  if (offset < 0 || RARRAY_LEN(ary) <= offset) {
+    return mrb_nil_value();
+  }
+  return RARRAY_PTR(ary)[offset];
+}
+
 MRB_END_DECL
 
 #endif  /* MRUBY_ARRAY_H */
-- 
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