Fixed C++ warning message by "defining both functions

in the derived class" (Jeff)

src/cas/example/directoryService/directoryServer.cc

@@ -138,7 +138,15 @@ pvExistReturn directoryServer::pvExistTest
 
 	return pvExistReturn (caNetAddr(pPVE->getInfo().getAddr()));
 }
-
+//
+// Override fallback for pvExistTest()
+//
+pvExistReturn directoryServer::pvExistTest
+	( const casCtx & ctx, const char * pPVName )
+{
+	caNetAddr addr;
+	return pvExistTest (ctx, addr, pPVName);
+}
 
 //
 // directoryServer::show() 

src/cas/example/directoryService/directoryServer.h

@@ -111,6 +111,8 @@ public:
 private:
     resTable < pvEntry, stringId > stringResTbl;
 
+    pvExistReturn pvExistTest ( const casCtx&, 
+        const char *pPVName );
     pvExistReturn pvExistTest ( const casCtx&, 
         const caNetAddr &, const char *pPVName );
 };