TAL Reference Manual

Procedures

TAL Reference Manual—526371-001

13-2

Procedure Declaration

A procedure is a program unit that is callable from anywhere in the program. You

declare a procedure as follows:

type

specifies that the procedure is a function that returns a result and indicates the

data type of the returned result. type can be any data type described in Section 3,

Data Representation.

identifier

is the procedure identifier to use in the compilation unit.

public-name-spec

has the form:

public-name

is the procedure name to use in Binder, not in the compilation unit. Use this option

only in a D-series EXTERNAL procedure declaration. If you omit this option,

identifier is the default public-name. public-name must conform to the identifier

rules of the language in which the external procedure is written. For all languages

except C, the compiler upshifts

public-name automatically.

VST1301.vsd

identifierPROC

type public-name-spec

;

parameter-list proc-attribute

param-spec

;

proc-body

EXTERNAL

FORWARD

;

VST1302.vsd

public-name

= ""