From 2efcd7fa0c5cd1f8ca38d261def56e3485097d70 Mon Sep 17 00:00:00 2001
From: Daniel Warner <contact@danrw.com>
Date: Sun, 10 Apr 2011 00:37:42 +0100
Subject: [PATCH] Added variable to limit do/while loop to max 10 iterations

---
 Eci.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Eci.cpp b/Eci.cpp
index e4c2e7b..3e90f0c 100644
--- a/Eci.cpp
+++ b/Eci.cpp
@@ -65,13 +65,15 @@ CoordGeodetic Eci::ToGeodetic() const {
     double lat = Globals::AcTan(position_.GetZ(), r);
     double phi = 0.0;
     double c = 0.0;
+    int cnt = 0;
 
     do {
         phi = lat;
         const double sinphi = sin(phi);
         c = 1.0 / sqrt(1.0 - e2 * sinphi * sinphi);
         lat = Globals::AcTan(position_.GetZ() + Globals::XKMPER() * c * e2 * sinphi, r);
-    } while (fabs(lat - phi) >= 1e-10);
+        cnt++;
+    } while (fabs(lat - phi) >= 1e-10 && cnt < 10);
 
     const double alt = r / cos(lat) - Globals::XKMPER() * c;