From 5dda65c0303d0e3c38e4ab57c26759937af0eeb2 Mon Sep 17 00:00:00 2001
From: Tofu Linden <tofu.linden@lindenlab.com>
Date: Thu, 15 Apr 2010 20:15:40 +0100
Subject: EXT-4388 Crash in octree line segment intersection code (getMask) Add
 yet more paranoia-and-return-or-assert, this time for +-INF in input vector.
 To be reviewed by Bao. (transplanted from
 2012f21d23c66179345fb26148cfbe19835b325e)

---
 indra/llmath/v2math.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'indra/llmath/v2math.h')

diff --git a/indra/llmath/v2math.h b/indra/llmath/v2math.h
index 9fef8851cc..65f3714313 100644
--- a/indra/llmath/v2math.h
+++ b/indra/llmath/v2math.h
@@ -70,6 +70,8 @@ class LLVector2
 		void	setVec(const LLVector2 &vec);	// deprecated
 		void	setVec(const F32 *vec);			// deprecated
 
+		inline bool isFinite() const; // checks to see if all values of LLVector2 are finite
+
 		F32		length() const;				// Returns magnitude of LLVector2
 		F32		lengthSquared() const;		// Returns magnitude squared of LLVector2
 		F32		normalize();					// Normalizes and returns the magnitude of LLVector2
@@ -215,6 +217,7 @@ inline void	LLVector2::setVec(const F32 *vec)
 	mV[VY] = vec[VY];
 }
 
+
 // LLVector2 Magnitude and Normalization Functions
 
 inline F32 LLVector2::length(void) const
@@ -247,6 +250,12 @@ inline F32		LLVector2::normalize(void)
 	return (mag);
 }
 
+// checker
+inline bool LLVector2::isFinite() const
+{
+	return (llfinite(mV[VX]) && llfinite(mV[VY]));
+}
+
 // deprecated
 inline F32		LLVector2::magVec(void) const
 {
-- 
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