3.3 Structured Types

A structured type is a type that can hold multiple values in one variable. Stuctured types can be nested to unlimited levels.

_________________________________________________________________________________________________________ Structured Types
-- structured type--|----array type ------------------------------------
|---record type---|
|---object type---|
|----class type-----|
|class reference type|
-----set type-----|
file type
___________________________________________________________________

Unlike Delphi, Free Pascal does not support the keyword Packed for all structured types, as can be seen in the syntax diagram. It will be mentioned when a type supports the packed keyword. In the following, each of the possible structured types is discussed.

   Arrays
   Record types
   Set types
   File types

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