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   ► KBTo/From GuidesDelphi Prism  Print This     

Overloading (Delphi Prism and PHP Cross Reference Guide)

By Mike Prestwood

Delphi Prism versus PHP: A side by side comparison between Delphi Prism and PHP.

 
Language Details
 

Language Details is kind of a catch all for stuff that didn't make it into language basics nor any other category.

Overloading

[Other Languages] 

Types of overloading include method overloading and operator overloading.

Method Overloading is where different functions with the same name are invoked based on the data types of the parameters passed or the number of parameters. Method overloading is a type of polymorphism and is also known as Parametric Polymorphism.

Operater Overloading allows an operator to behave differently based on the types of values used. For example, in some languages the + operator is used both to add numbers and to concatenate strings. Custom operator overloading is sometimes referred to as ad-hoc polymorphism.

Delphi Prism:   implicit

Like Delphi, Prism supports overloading. However, Prism supports implicit overloading (no need for an overload keyword).

Syntax Example:
method MainForm.Add(a, b: integer): Integer;
begin
Result := a + b;
end;
  
method MainForm.Add(const msg: String; a, b: integer): String;
begin
Result := msg + (a + b);
end;
PHP: 

PHP

  • Operator - No.
  • Method -
Syntax Example:

 













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