/* To create a command that calls Action on an instance of class MyClass, a client simply writes */
MyClass* receiver = new MyClass;
// ...
Command* aCommand =
    new SimpleCommand<MyClass>(receiver, &MyClass::Action);
// ...
aCommand->Execute();

/* Keep in mind that this solution only works for simple commands. 
More complex commands that keep track of not only their receivers 
but also arguments and/or undo state require a Command subclass. */