X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Frank1.c;h=0b1ddfb176b6b73dc9b108c701d223a47df9731e;hb=be32b4e5c154545c2b91b76144d6cbf1238f969a;hp=7792647366539b816bfc1bde8400c39e2810cf50;hpb=8ed385caafd1d9695a5a9c0783f0dbe2a53f3e80;p=idzebra-moved-to-github.git

diff --git a/index/rank1.c b/index/rank1.c
index 7792647..0b1ddfb 100644
--- a/index/rank1.c
+++ b/index/rank1.c
@@ -1,4 +1,4 @@
-/* $Id: rank1.c,v 1.23 2005-03-08 14:02:12 adam Exp $
+/* $Id: rank1.c,v 1.25 2005-06-14 20:28:54 adam Exp $
    Copyright (C) 1995-2005
    Index Data ApS
 
@@ -24,7 +24,8 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include <assert.h>
 #ifdef WIN32
 #include <io.h>
-#else
+#endif
+#if HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 
@@ -59,6 +60,8 @@ struct rank_set_info {
 static int log2_int (zint g)
 {
     int n = 0;
+    if (g < 0)
+	return 0;
     while ((g = g>>1))
 	n++;
     return n;