http://svn.poeml.de/viewvc/ppc/src-unpacked/xscreensaver/xscreensaver-4.12.tar.bz2...

[xscreensaver] / hacks / epicycle.c

diff --git a/hacks/epicycle.c b/hacks/epicycle.c
index 3732cb8e2ff49644b10223968880b67fa60f91d4..65a468162ef9fe5dcbfb7974600652edbd337e31 100644 (file)
--- a/hacks/epicycle.c
+++ b/hacks/epicycle.c
@@ -266,7 +266,10 @@ new_circle_chain(void)
   
   /* There are between minCircles and maxCircles in each figure.
    */
-  n = minCircles + random() % (maxCircles - minCircles);
+  if (maxCircles == minCircles)
+    n = minCircles;            /* Avoid division by zero. */
+  else
+    n = minCircles + random() % (maxCircles - minCircles);
   
   head = NULL;
   while (n--)
@@ -584,7 +587,6 @@ setup(void)
     }
   else
     {
-      XWindowAttributes xgwa;
       XGetWindowAttributes (dpy, window, &xgwa);
       XSelectInput (dpy, window,
                     xgwa.your_event_mask | ExposureMask |