Re: RPG IV Pointers

[Paul Tuohy <tuohyp@xxxxxxxxxxxxx>]

Hi Rajeev,

I think you are confusing the definition of a pointer with the use of a pointer.

A pointer is defined with a data type of '*'.

A field (array, data structure or whatever) can then be defined. specifying that
the memory location is BASED on the pointer.

D MyPointer                         S                              *
D MyField                            S                        50
Based(MyPointer)

The program has to place a valid memory address in the pointer field

C                                              Eval     MyPointer =
%Addr(OtherField)


HTH

Paul Tuohy

RAJEEV ASTHANA wrote:

> Hi All,
>
> Could someone explain me in simpler terms how a
> Pointer data type is defined and used in RPG IV?
>
> I tried to understand on lines of C Pointers but I see
> that I have to define a "Basing" pointer. Isn't it
> twice the work? I mean, you first define a pointer and
> then base it to define other pointer variable?
>
> Thanks in Advance.
>

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