X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fglx%2Fglhanoi.c;h=df62a37151bf6e763fce15c006e20eb44bd2183f;hb=de460e831dc8578acfa8b72251ab9346c99c1f96;hp=ef10c20ec7b1d594e2002c893de1604970e7946c;hpb=49f5b54f312fe4ac2e9bc47581a72451bd0e8439;p=xscreensaver

diff --git a/hacks/glx/glhanoi.c b/hacks/glx/glhanoi.c
index ef10c20e..df62a371 100644
--- a/hacks/glx/glhanoi.c
+++ b/hacks/glx/glhanoi.c
@@ -136,7 +136,6 @@ typedef struct {
 	float diskHeight;
 	float *diskPos;				/* pre-computed disk positions on rods */
 	Disk *disk;
-	float speed;
 	GLint floorList;
 	GLint baseList;
 	GLint poleList;
@@ -1312,6 +1311,11 @@ ENTRYPOINT void init_glhanoi(ModeInfo * mi)
     if (glhanoi->numberOfDisks <= 1)
       glhanoi->numberOfDisks = 3 + (int) BELLRAND(9);
 
+    /* magicnumber is a bitfield, so we can't have more than 31 discs
+       on a system with 4-byte ints. */
+    if (glhanoi->numberOfDisks >= 8 * sizeof(int))
+      glhanoi->numberOfDisks = (8 * sizeof(int)) - 1;
+
 	glhanoi->maxDiskIdx = glhanoi->numberOfDisks - 1;
 	glhanoi->wire = MI_IS_WIREFRAME(mi);
 	glhanoi->light = light;