From f9b836a677574f381bacfb80c50842a6ef9ef72f Mon Sep 17 00:00:00 2001
From: Masamitsu MURASE <masamitsu.murase@gmail.com>
Date: Sun, 13 Jan 2013 19:30:25 +0900
Subject: Initialize edges of RRange.

---
 src/gc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/gc.c')

diff --git a/src/gc.c b/src/gc.c
index b3e4b291c..8999727d0 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -455,8 +455,10 @@ gc_mark_children(mrb_state *mrb, struct RBasic *obj)
     {
       struct RRange *r = (struct RRange*)obj;
 
-      mrb_gc_mark_value(mrb, r->edges->beg);
-      mrb_gc_mark_value(mrb, r->edges->end);
+      if (r->edges) {
+        mrb_gc_mark_value(mrb, r->edges->beg);
+        mrb_gc_mark_value(mrb, r->edges->end);
+      }
     }
     break;
 
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