/// .x ztest.cpp

#include "mylib.hpp"

void ztest ()
{
   MyPrintFunction                       ("ok") ;
   MyPrintFunctionWithAnOptionalArgument ("ok") ;
   
   TString message = "test" ;
   MyPrintFunction                       (TString::Format("message='%s'",message.Data())) ;
   MyPrintFunctionWithAnOptionalArgument (TString::Format("message='%s'",message.Data())) ;         /// error: call to 'MyPrintFunctionWithAnOptionalArgument' is ambiguous
   MyPrintFunctionWithAnOptionalArgument (TString::Format("message='%s'",message.Data()).Data()) ;  /// no error in this case...

   return ;
}