From 9c85daa6b400157ee5b2be2cf5be87a031e4fd49 Mon Sep 17 00:00:00 2001
From: "K.Kosako" <kosako@sofnec.co.jp>
Date: Tue, 21 Feb 2017 10:34:15 +0900
Subject: [PATCH] Initialize return value
 (https://bugs.ruby-lang.org/issues/13234)

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

diff --git a/src/regparse.c b/src/regparse.c
index 2bf1d9f..11f9e34 100644
--- a/src/regparse.c
+++ b/src/regparse.c
@@ -4147,11 +4147,11 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end,
   enum CCVALTYPE val_type, in_type;
   int val_israw, in_israw;
 
+  *np = NULL_NODE;
   env->parse_depth++;
   if (env->parse_depth > ParseDepthLimit)
     return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
   prev_cc = (CClassNode* )NULL;
-  *np = NULL_NODE;
   r = fetch_token_in_cc(tok, src, end, env);
   if (r == TK_CHAR && tok->u.c == '^' && tok->escaped == 0) {
     neg = 1;
-- 
2.40.0