From 279fbdc8377438c8760eeb8d5b40a3d260af3915 Mon Sep 17 00:00:00 2001
From: Torsten Dreyer <Torsten@t3r.de>
Date: Tue, 28 Jun 2011 12:51:00 +0200
Subject: [PATCH] Fix #357: Enabling "fixes" on map dialog crashes FG

This happened for fixes with names shorter than 5 characters.
range check added, which operator[] does not perform.
---
 src/GUI/MapWidget.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/GUI/MapWidget.cxx b/src/GUI/MapWidget.cxx
index e3cc5de77..b6f344497 100644
--- a/src/GUI/MapWidget.cxx
+++ b/src/GUI/MapWidget.cxx
@@ -917,7 +917,7 @@ public:
   virtual bool pass(FGPositioned* aPos) const {
     if (_fixes && (aPos->type() == FGPositioned::FIX)) {
       // ignore fixes which end in digits - expirmental
-      if (isdigit(aPos->ident()[3]) && isdigit(aPos->ident()[4])) {
+      if (aPos->ident().length() > 4 && isdigit(aPos->ident()[3]) && isdigit(aPos->ident()[4])) {
         return false;
       }
     }