From e36a3b5d26b0b9d3cce70594cbdf70e5bf14c01b Mon Sep 17 00:00:00 2001
From: Richard Kenner <kenner@gcc.gnu.org>
Date: Wed, 28 Apr 1993 14:54:51 -0400
Subject: (yylex): Don't use unsigned comparison to also check for < 0; do it
 explicitly.

From-SVN: r4257
---
 gcc/c-lex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc')

diff --git a/gcc/c-lex.c b/gcc/c-lex.c
index ea6c015..13ec3a2 100644
--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -1934,7 +1934,7 @@ yylex ()
 
 #ifdef MULTIBYTE_CHARS
 	    len = mbstowcs ((wchar_t *) widep, token_buffer + 1, p - token_buffer);
-	    if ((unsigned) len >= (p - token_buffer))
+	    if (len < 0 || len >= (p - token_buffer))
 	      {
 		warning ("Ignoring invalid multibyte string");
 		len = 0;
-- 
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