From: Kenichi Handa <handa@m17n.org>
Date: Mon, 16 Nov 1998 06:26:27 +0000 (+0000)
Subject: (SINGLE_BYTE_CHAR_P): Check if C is negative or not.
X-Git-Tag: emacs-20.4~1230
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=72b718d76538ad0ab6d52dc5abe628a7943967e9;p=emacs.git

(SINGLE_BYTE_CHAR_P): Check if C is negative or not.
---

diff --git a/src/charset.h b/src/charset.h
index 957cb4afdb9..44955fa3ac4 100644
--- a/src/charset.h
+++ b/src/charset.h
@@ -250,7 +250,7 @@ extern int charset_big5_2;	/* Big5 Level 2 (Chinese Traditional) */
 #define GENERIC_COMPOSITION_CHAR (GLYPH_MASK_CHAR)
 
 /* 1 if C is an ASCII character, else 0.  */
-#define SINGLE_BYTE_CHAR_P(c) ((c) < 0x100)
+#define SINGLE_BYTE_CHAR_P(c) ((c) >= 0 && (c) < 0x100)
 /* 1 if C is an composite character, else 0.  */
 #define COMPOSITE_CHAR_P(c) ((c) >= MIN_CHAR_COMPOSITION)