akr	2008-08-24 12:03:18 +0900 (Sun, 24 Aug 2008)

  New Revision: 18804

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=18804

  Log:
    * transcode.c (rb_econv_open): return NULL on error.

  Modified files:
    trunk/ChangeLog
    trunk/transcode.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 18803)
+++ ChangeLog	(revision 18804)
@@ -1,3 +1,7 @@
+Sun Aug 24 12:02:39 2008  Tanaka Akira  <akr@f...>
+
+	* transcode.c (rb_econv_open): return NULL on error.
+
 Sun Aug 24 11:40:38 2008  Tanaka Akira  <akr@f...>
 
 	* include/ruby/encoding.h (rb_econv_open_exc): declared.
Index: transcode.c
===================================================================
--- transcode.c	(revision 18803)
+++ transcode.c	(revision 18804)
@@ -780,7 +780,7 @@
     ec = rb_econv_open_by_transcoder_entries(num_trans, entries);
     xfree(entries);
     if (!ec)
-        rb_raise(rb_eArgError, "encoding conversion not supported (from %s to %s)", from, to);
+        return NULL;
 
     ec->flags = flags;
     ec->source_encoding_name = from;

--
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