From 3448160b248e92b2c0c2a39ba42a9d9c366b4e72 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 21 Jun 2009 01:46:37 +0000
Subject: * transcode.c (enc_arg): default interanl encoding may not be set.  
 [ruby-core:23932]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23773 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 transcode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'transcode.c')

diff --git a/transcode.c b/transcode.c
index 7fb25601fc..ee6794d9be 100644
--- a/transcode.c
+++ b/transcode.c
@@ -2470,13 +2470,13 @@ enc_arg(volatile VALUE *arg, const char **name_p, rb_encoding **enc_p)
     int encidx;
     VALUE encval;
 
-    if ((encidx = rb_to_encoding_index(encval = *arg)) < 0) {
+    if (((encidx = rb_to_encoding_index(encval = *arg)) < 0) ||
+	!(enc = rb_enc_from_index(encidx))) {
 	enc = NULL;
 	encidx = 0;
 	n = StringValueCStr(*arg);
     }
     else {
-	enc = rb_enc_from_index(encidx);
 	n = rb_enc_name(enc);
     }
 
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