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use fmod() to prevent overflow of angle variable
author
Brian Paul
<brian.paul@tungstengraphics.com>
Fri, 30 Sep 2005 15:03:33 +0000
(15:03 +0000)
committer
Brian Paul
<brian.paul@tungstengraphics.com>
Fri, 30 Sep 2005 15:03:33 +0000
(15:03 +0000)
progs/demos/gears.c
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diff --git
a/progs/demos/gears.c
b/progs/demos/gears.c
index
679fac4
..
ab9bc00
100644
(file)
--- a/
progs/demos/gears.c
+++ b/
progs/demos/gears.c
@@
-234,7
+234,9
@@
idle(void)
dt = t - t0;
t0 = t;
- angle += 70.0 * dt; /* 90 degrees per second */
+ angle += 70.0 * dt; /* 70 degrees per second */
+ angle = fmod(angle, 360.0); /* prevents eventual overflow */
+
glutPostRedisplay();
}