NewBie's Corner Session 21 Parameters  Part II

NewBie's Corner Session 21 Parameters  Part II

Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

Parameters

In the previous session we saw how to call RtnB from RtnA with Parameters.

We also defined Parameters as another name for Variables when used in passing data from one Routine to another, or, from one Label to another.

Calling a routine from a Label, or to a Label, from within a routine is very similar to calling a routine itself.

To call a Label in the current routine would look like:

                Do MyLabel(Parm1, Parm2, Parm3)                       ; Actual Call List

The code in the called Label would look like:

                MyLabel(Parm1, Parm2, Parm3)                                ; Formal Call List

Note: MyLabel would start in column 1.

Now, if the label exists in another routine, it would look like:

RtnA

                . . . .
                . . . .

                Do MyLabel^RtnB(Parm1, Parm2, Parm3)                             ; Actual Call List

                . . . .

                . . . .

                Quit

The code in RtnB would look like:

RtnB

                . . . .

                . . . .

MyLabel(Parm1, Parm2, Parm3)                                                                ; Formal Call List

                . . . .

                . . . .

                Quit

More on parameters in the next session.

--Mike Kadow

PaulMikeKadow@gmail.com

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