C#

var a = 5.5;

a = new func<double>(delegate() { return 5.5; });

DTBase<double> a = (DTVar<double>)5.5;
a = new DTFunc<double>(delegate() { return 5.5; });

Dictionary<string, DTBase<double>> formulasForGame; // Functions, equations, single variables and file reads. 

List<DTBase<string>> urlRetrieval; // Retrieves urls from various places and sources. Optionally, a list of DTArgs<string>. 

List<DTFunc<string, string>> chatRelays; // A set of functions that relay text strings for chat according to the specific sending needs of each specific receiver and sender. 

a = new func<double>(delegate() { return 5.5; });

public implicit operator T(DTBase<T> val) { return val.Value; }
public implicit operator DTBase<T>(T val) { return new DTVar<T>(val); }

AbstractBase firstDerived = new FirstDerived();
firstDerived.DoSomething();

Mark Nischalke wrote:

However, I disagree that it is odd

Mark Nischalke wrote:

It's not an error

Mark Nischalke wrote:

Don't you think this would have been a better response to the OP than "this structure is quite odd and you should adjust your design"? How would they have know what odd meant or how it should be redesigned in your opinion?

Mark Nischalke wrote:

You mean this line?

FirstDerived firstDerived = new FirstDerived();

Well, yes, of course it is different. It is being called in class SecondDerived. I don't see anything odd about that.

class Base
{
  protected abstract void DoSomething();
}

class Derived : Base
{
  protected override void DoSomething() {...}
  
  private void SomethingElse()
  {
    CompletelyDifferent otherObject = new CompletelyDifferent();
    otherObject.SomeFunction(); // Error! It's protected
  }
}

class CompletelyDifferent
{
  protected void SomeFunction() {...}
}

Mark Nischalke wrote:

It's not an error. It is someone trying to learn, giving an example and asking for an explaination.

Mark Nischalke wrote:

Yours is not the attitude we want here on CP. If you can't comment politely or don't have the time to adequate respond then please don't visit here.

MicroVirus wrote:

that external sources do NOT have access to that function