Fix a comparison bug in diff-delta.c

MadCoder · Junio C Hamano · commit b05faa2da9ec · 2006-08-23T03:05:27.000-07:00
(1 &lt;&lt; i) &lt; hspace is compared in the `int` space rather that in the
unsigned one.  the result will be wrong if hspace is between 0x40000000
and 0x80000000.

Signed-off-by: Pierre Habouzit &lt;madcoder@debian.org&gt;
Signed-off-by: Junio C Hamano &lt;junkio@cox.net&gt;
diff --git a/diff-delta.c b/diff-delta.c
@@ -152,7 +152,7 @@ struct delta_index * create_delta_index(const void *buf, unsigned long bufsize)
 	   initialization in create_delta(). */
 	entries = (bufsize - 1)  / RABIN_WINDOW;
 	hsize = entries / 4;
-	for (i = 4; (1 << i) < hsize && i < 31; i++);
+	for (i = 4; (1u << i) < hsize && i < 31; i++);
 	hsize = 1 << i;
 	hmask = hsize - 1;
 
