(mark-islamic-calendar-date-pattern): Use zerop.

Comments.

diff --git a/lisp/calendar/cal-islam.el b/lisp/calendar/cal-islam.el
index b05f44868a886844e5d8a6e28494323133daed8a..6a2738f39f749d5a7cd71a22627647e64a5af999 100644 (file)
--- a/lisp/calendar/cal-islam.el
+++ b/lisp/calendar/cal-islam.el
@@ -1,7 +1,7 @@
 ;;; cal-islam.el --- calendar functions for the Islamic calendar
 
-;; Copyright (C) 1995, 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-;;   Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+;;   2008  Free Software Foundation, Inc.
 
 ;; Author: Edward M. Reingold <reingold@cs.uiuc.edu>
 ;; Maintainer: Glenn Morris <rgm@gnu.org>
@@ -402,8 +402,8 @@ provided for use as part of the nongregorian-diary-marking-hook."
 A value of 0 in any position is a wildcard."
   (save-excursion
     (set-buffer calendar-buffer)
-    (if (and (/= 0 month) (/= 0 day))
-        (if (/= 0 year)
+    (if (and (not (zerop month)) (not (zerop day)))
+        (if (not (zerop year))
             ;; Fully specified Islamic date.
             (let ((date (calendar-gregorian-from-absolute
                          (calendar-absolute-from-islamic