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   ► KBTo/From GuidesDelphi Prism  Print This     

Unary Operators (Delphi Prism and PHP Cross Reference Guide)

By Mike Prestwood

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

 
Operators
 

A language symbol used for assignment, comparison, computational, or as a logical.

Unary Operators

[Other Languages] 

General Info: Unary Operator

An operation with only one operand (a single input). Common unary operators include + plus, - minus, and bitwise not. Some operators can function as both unary and binary operators. For example, + and - operators can serve as either.

Languages Focus

What unary operators are supported in additoin to the standard plus, minus, and bitwise not.

Delphi Prism: 

The obvious Prism unary operators are +, -, and Not.

+ Plus
- Minus
Not Bitwise Not
Inc() Increment
Dec() Decrement

Syntax Example:
var i: Integer := 1;
Inc(i);
MessageBox.Show("" + i);  //Displays 2
PHP: 

A unary operator operates on only one value.

PHP Examples:

  • ! negation operator
  • ++ increment operator
  • -- decrement operator












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