From b73bd53744a41615ec9a47d23bd8ac4b09f55e17 Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Sun, 28 Jan 2007 22:55:37 +0000
Subject: [PATCH] this should now really be correct; nothing for a beauty
 contest, though

---
 src/Scripting/NasalSys.cxx | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/Scripting/NasalSys.cxx b/src/Scripting/NasalSys.cxx
index f4d6a5db3..68119ed28 100644
--- a/src/Scripting/NasalSys.cxx
+++ b/src/Scripting/NasalSys.cxx
@@ -433,11 +433,13 @@ void FGNasalSys::update(double)
 {
     if(_purgeListeners) {
         _purgeListeners = false;
-        map<int, FGNasalListener *>::iterator it;
-        for(it = _listener.end(); --it != _listener.end();) {
-            FGNasalListener *nl = it->second;
+        map<int, FGNasalListener *>::reverse_iterator it, eit;
+        map<int, FGNasalListener *>::reverse_iterator end = _listener.rend();
+        for(it = _listener.rbegin(); it != end; ) {
+            eit = it++;
+            FGNasalListener *nl = eit->second;
             if(nl->_dead) {
-                _listener.erase(it);
+                _listener.erase((++eit).base());
                 delete nl;
             }
         }
-- 
2.39.2