From f343c8501b0f74bfd38ad64e803c0f86d4e04ebd Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Fri, 9 Jul 2021 19:41:43 +1000
Subject: [PATCH] AP_Math: fixed double fill_nanf()

---
 libraries/AP_Math/AP_Math.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/AP_Math/AP_Math.cpp b/libraries/AP_Math/AP_Math.cpp
index 3adf1da38a..86bff17b5b 100644
--- a/libraries/AP_Math/AP_Math.cpp
+++ b/libraries/AP_Math/AP_Math.cpp
@@ -412,7 +412,7 @@ void fill_nanf(float *f, uint16_t count)
 void fill_nanf(double *f, uint16_t count)
 {
     while (count--) {
-        *f++ = 0;
+        *f++ = std::numeric_limits<double>::signaling_NaN();
     }
 }
 #endif