Types

TYPE <identifier> "=" <type> ";"

It is convenient to be able to give names to types, and the TYPE declaration allows you to do this. <type> may be one of the following:

• Ordinal: INTEGER, CARDINAL, BOOLEAN, CHAR, subrange, enumerated
• Floating point: REAL, LONGREAL, EXTENDED
• Array: a structure containing a fixed number of elements of the same type
• Record: a structure containing a fixed number of elements
• Object: a record paired with a method suite
• Set: a collection of ordinal values
• Reference: a pointer to something
• Procedure: a procedure signature

• Ordinal Types: INTEGER, CARDINAL, BOOLEAN, CHAR, ...
• Array Types: ARRAY <indextype> OF <slottype>
• Record Types: RECORD <fieldlist> END
• Object Types: OBJECT-METHODS-OVERRIDES-END
• Set Types: SET OF <basetype>
• Reference Types: REF <referent type>
• Procedure Types: PROCEDURE (<parameter list>) { : <return type>}