[brlcad-commits] SF.net SVN: brlcad:[42089] brlcad/trunk/src/adrt/libtie/tie.c

[<br...@us...>]

Revision: 42089
          http://brlcad.svn.sourceforge.net/brlcad/?rev=42089&view=rev
Author:   brlcad
Date:     2011-01-11 21:38:37 +0000 (Tue, 11 Jan 2011)

Log Message:
-----------
eliminate exact floating point comaprison

Modified Paths:
--------------
    brlcad/trunk/src/adrt/libtie/tie.c

Modified: brlcad/trunk/src/adrt/libtie/tie.c
===================================================================
--- brlcad/trunk/src/adrt/libtie/tie.c	2011-01-11 21:37:35 UTC (rev 42088)
+++ brlcad/trunk/src/adrt/libtie/tie.c	2011-01-11 21:38:37 UTC (rev 42089)
@@ -220,7 +220,7 @@
  * this allows those divides to become fast multiplies.
  */
     for (i = 0; i < 3; i++) {
-	if (ray->dir.v[i] == 0.0)
+	if (NEAR_ZERO(ray->dir.v[i], SMALL_FASTF))
 	    ray->dir.v[i] = TIE_PREC;
 	dirinv[i] = 1.0 / ray->dir.v[i];
 	ab[i] = dirinv[i] < 0.0 ? 1.0 : 0.0;


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