From 66c5b0d3fa394126964fce30242b8d931fc3e475 Mon Sep 17 00:00:00 2001
From: Jun Hiroe <Jun.Hiroe@gmail.com>
Date: Sun, 14 Jul 2013 00:01:08 +0900
Subject: Replace 0 with NULL because NULL is used in struct pointer.

---
 src/vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/vm.c b/src/vm.c
index d4e7fd483..ab07f5718 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -174,7 +174,7 @@ uvenv(mrb_state *mrb, int up)
   struct REnv *e = mrb->c->ci->proc->env;
 
   while (up--) {
-    if (!e) return 0;
+    if (!e) return NULL;
     e = (struct REnv*)e->c;
   }
   return e;
-- 
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