Overloading (C# and Delphi Cross Reference Guide)

C# supports both method and operator overloading.

For methods, C# supports implicit overloading (no need for an overload keyword).

 C# Overloading (implicit)

Delphi supports both method and operator overloading.

For method overloading, you use the overload keyword (all versions of the routine must include the overload keyword). The compiler chooses the correct method first based on the number of parameters, then on the type so you can have two overloaded methods with the same number of parameters so long as at least one parameter is different.

Another form of method overloading is with the use of default parameters, a shortcut syntax, where you specify a default parameter value.

Delphi also supports operator overloading with some operators.

function Add(a, b: integer): Integer;  overload;
begin
  Result := a+b;
end;

function Add(const msg: String; a, b: integer): String; overload;
begin
  Result := msg + IntToStr(a+b);
end;

 Delphi Overloading (overload)