From b815fc97c4e686a93a8074f27d1830a031b0d38d Mon Sep 17 00:00:00 2001
From: Roman Bapst <bapstroman@gmail.com>
Date: Tue, 12 Jun 2018 18:24:51 +0200
Subject: [PATCH] replace quiet_NaN() with INFINITY (#70)

- solves undefined symbols for QURT

Signed-off-by: Roman <bapstroman@gmail.com>
---
 matrix/helper_functions.hpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/matrix/helper_functions.hpp b/matrix/helper_functions.hpp
index ce8ba11456..43c28d571d 100644
--- a/matrix/helper_functions.hpp
+++ b/matrix/helper_functions.hpp
@@ -6,8 +6,6 @@
 #include <px4_defines.h>
 #endif
 
-#include <limits>
-
 namespace matrix
 {
 
@@ -35,7 +33,7 @@ Type wrap_pi(Type x)
         x -= Type(2 * M_PI);
 
         if (c++ > 100) {
-            return std::numeric_limits<Type>::quiet_NaN();
+            return INFINITY;
         }
     }
 
@@ -45,7 +43,7 @@ Type wrap_pi(Type x)
         x += Type(2 * M_PI);
 
         if (c++ > 100) {
-            return std::numeric_limits<Type>::quiet_NaN();
+            return INFINITY;
         }
     }
 
@@ -65,7 +63,7 @@ Type wrap_2pi(Type x)
         x -= Type(2 * M_PI);
 
         if (c++ > 100) {
-            return std::numeric_limits<Type>::quiet_NaN();
+            return INFINITY;
         }
     }
 
@@ -75,7 +73,7 @@ Type wrap_2pi(Type x)
         x += Type(2 * M_PI);
 
         if (c++ > 100) {
-            return std::numeric_limits<Type>::quiet_NaN();
+            return INFINITY;
         }
     }