Fix for bug #177 - check for empty strings

diff --git a/src/Airports/simple.cxx b/src/Airports/simple.cxx
index c7e486f45a56b95cd0ddac27e5179fe9d7a22fa7..7eceffe5b583dfd2a91b61d82e9838344bf85c60 100644 (file)
--- a/src/Airports/simple.cxx
+++ b/src/Airports/simple.cxx
@@ -143,7 +143,10 @@ FGRunway* FGAirport::getRunwayByIdent(const string& aIdent) const
 
 FGAirport::Runway_iterator
 FGAirport::getIteratorForRunwayIdent(const string& aIdent) const
-{ 
+{
+  if (aIdent.empty())
+    return mRunways.end();
+
   loadRunways();
   
   string ident(aIdent);