From 4baea7dd8ee879dfff74df824c7e5963ff954625 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 21 Dec 2007 06:16:02 +0000
Subject: [PATCH] * encoding.c (rb_to_encoding_index): should return error
 instead of   exception even if type is incorrect.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14405 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog  | 5 +++++
 encoding.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 4c0444fd46..a07bb1de5f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Dec 21 15:16:00 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* encoding.c (rb_to_encoding_index): should return error instead of
+	  exception even if type is incorrect.
+
 Fri Dec 21 14:58:27 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* enumerator.c (enumerator_init_copy): prohibit cloning of
diff --git a/encoding.c b/encoding.c
index ba83837f49..819ac54071 100644
--- a/encoding.c
+++ b/encoding.c
@@ -81,6 +81,9 @@ rb_to_encoding_index(VALUE enc)
     if (idx >= 0) {
 	return idx;
     }
+    else if (NIL_P(enc = rb_check_string_type(enc))) {
+	return -1;
+    }
     else {
 	return rb_enc_find_index(StringValueCStr(enc));
     }