# HG changeset patch
# User stephent
# Date 998643129 0
# Node ID 704cb139ec6ba7f703430d94f6853beea7290fef
# Parent  37441ddea94db0535a9be4d3a788fa1b486fa982
[xemacs-hg @ 2001-08-24 08:52:07 by stephent]
Make negative integers invalid again. <15238.5438.881529.885462@turnbull.sk.tsukuba.ac.jp>

diff -r 37441ddea94d -r 704cb139ec6b src/ChangeLog
--- a/src/ChangeLog	Wed Aug 22 21:03:16 2001 +0000
+++ b/src/ChangeLog	Fri Aug 24 08:52:09 2001 +0000
@@ -1,3 +1,7 @@
+2001-08-24  Stephen J. Turnbull  <stephen@xemacs.org>
+
+	* buffer.h (valid_char_p): Make negative integers invalid again.
+
 2001-08-13  Ben Wing  <ben@xemacs.org>
 
 	* regex.c: need to include stddef.h for ptrdiff_t on Solaris, when
diff -r 37441ddea94d -r 704cb139ec6b src/buffer.h
--- a/src/buffer.h	Wed Aug 22 21:03:16 2001 +0000
+++ b/src/buffer.h	Fri Aug 24 08:52:09 2001 +0000
@@ -553,12 +553,12 @@
 INLINE_HEADER int
 valid_char_p (Emchar ch)
 {
-  return ch <= 0xFF || non_ascii_valid_char_p (ch);
+  return (! (ch & ~0xFF)) || non_ascii_valid_char_p (ch);
 }
 
 #else /* not MULE */
 
-#define valid_char_p(ch) ((unsigned int) (ch) <= 0xff)
+#define valid_char_p(ch) (! (ch & ~0xFF))
 
 #endif /* not MULE */