From 94355e2984dad584f409d732fea4310bbbd3588f Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 9 Oct 2008 18:41:35 +0000
Subject: * sprintf.c (rb_str_format): check if codepoint for %c is valid.  
 [ruby-dev:36691]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 sprintf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sprintf.c')

diff --git a/sprintf.c b/sprintf.c
index 0085cfc176..34152b1704 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -618,7 +618,7 @@ rb_str_format(int argc, const VALUE *argv, VALUE fmt)
 		    c = NUM2INT(val);
 		}
 		n = rb_enc_codelen(c, enc);
-		if (n == 0) {
+		if (n <= 0) {
 		    rb_raise(rb_eArgError, "invalid character");
 		}
 		if (!(flags & FWIDTH)) {
-- 
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