From 1fb61faded185318e761e49e72e12f6265e26e3b Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Wed, 29 May 2013 11:22:25 -0700
Subject: [PATCH] fix the isnan check for agent bearing

---
 libraries/audio/src/AudioRingBuffer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libraries/audio/src/AudioRingBuffer.cpp b/libraries/audio/src/AudioRingBuffer.cpp
index 7cc45ff39f..f397c3210b 100644
--- a/libraries/audio/src/AudioRingBuffer.cpp
+++ b/libraries/audio/src/AudioRingBuffer.cpp
@@ -7,6 +7,7 @@
 //
 
 #include <cstring>
+#include <math.h>
 
 #include "PacketHeaders.h"
 
@@ -57,7 +58,8 @@ int AudioRingBuffer::parseData(unsigned char* sourceBuffer, int numBytes) {
         dataBuffer += sizeof(_bearing);
         
         // if this agent sent us a NaN bearing then don't consider this good audio and bail
-        if (_bearing != _bearing) {
+        if (std::isnan(_bearing)) {
+            printf("Got a nan bearing for this agent\n");
             _endOfLastWrite = _nextOutput = _buffer;
             _started = false;
             return 0;