From 89d629a0515ba0fb2aeb1a13f9be59cbdadb2fa1 Mon Sep 17 00:00:00 2001
From: nyamatongwe <devnull@localhost>
Date: Mon, 2 Jul 2012 15:31:37 +1000
Subject: Treat negative values as non-ASCII.

---
 lexlib/CharacterSet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lexlib')

diff --git a/lexlib/CharacterSet.h b/lexlib/CharacterSet.h
index ba42ea3d6..6de6b46c2 100644
--- a/lexlib/CharacterSet.h
+++ b/lexlib/CharacterSet.h
@@ -90,7 +90,7 @@ inline bool IsADigit(int ch, int base) {
 }
 
 inline bool IsASCII(int ch) {
-	return ch < 0x80;
+	return (ch >= 0) && (ch < 0x80);
 }
 
 inline bool IsAlphaNumeric(int ch) {
-- 
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