From 8da9e6d5499486ae5500f01fd6c59aae4649965a Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 29 Oct 2015 21:45:07 +0000
Subject: [PATCH] use NULL instead of 0

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52369 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vm.c b/vm.c
index 7c4d6fe2c1..22ade689fc 100644
--- a/vm.c
+++ b/vm.c
@@ -1142,7 +1142,7 @@ rb_vm_cref(void)
     rb_thread_t *th = GET_THREAD();
     rb_control_frame_t *cfp = rb_vm_get_ruby_level_next_cfp(th, th->cfp);
 
-    if (cfp == 0) {
+    if (cfp == NULL) {
 	return NULL;
     }