From da63a5fee1b6dc10e6ddad9c61d3f59568541f27 Mon Sep 17 00:00:00 2001
From: Kenichi Handa <handa@m17n.org>
Date: Mon, 16 Nov 1998 06:26:27 +0000
Subject: [PATCH] (non_ascii_char_to_string): If C is negative, signal error.

---
 src/charset.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/charset.c b/src/charset.c
index 45fb383ad09..054b2848894 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -141,6 +141,9 @@ non_ascii_char_to_string (c, workbuf, str)
 {
   int charset, c1, c2;
 
+  if (c < 0)
+    invalid_character (c);
+
   if (COMPOSITE_CHAR_P (c))
     {
       int cmpchar_id = COMPOSITE_CHAR_ID (c);
-- 
2.39.2