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**TYPE**

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The **TYPE** attribute specifies a prototype that does not reference an actual PROCEDURE. Instead, it defines a prototype //name// to use in other prototypes to indicate the type of procedure passed to another PROCEDURE as a parameter.

When the //name// of the TYPEd prototype is used in the //parameter list// of another prototype, the procedure being prototyped will receive, as a passed parameter, the label of a PROCEDURE that has the same type of //parameter list// (and has the same //return type//, if it returns a value).

**Example:**

** MAP**

**ProcType PROCEDURE(FILE),****TYPE****       !Procedure-parameter type definition**

**MyFunc3  PROCEDURE(ProcType),STRING !ProcType procedure-parameter, returning a STRING,**

** END                                ! must be passed the label of a procedure that **

**                                    !takes a FILE as a required parameter**

**See Also:**

[[procedure prototypes.htm|PROCEDURE Prototypes]]

[[prototype parameter lists.htm|Prototype Parameter Lists]]