Re: Using Pointers

Œ
Hello Mark,

I read the PADnn fields as being unimportant parts of existing fields but 
unimportant "other" 
fields will do just as well.

As to the rest:  You can't assign a regular field value to a pointer.  You can 
assign the 
address of a field to a pointer (using %ADDR), or you can assign a field value 
to the storage 
location referenced by the pointer (assuming it has a valid address).

So to re-word your statement:
        Assigning the address of a regular field to a pointer will result in 
the pointer 
referencing (pointing to) that variable's memory area.

Regards,
Simon Coulter.

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//--- forwarded letter -------------------------------------------------------
> X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 (demo)
> Date: Sun, 05 Dec 1999 17:04:39 -0500
> From: "M. Lazarus" <mlazarus@ttec.com>
> To: RPG400-L@midrange.com
> Reply-To: RPG400-L@midrange.com
> Subject: Using Pointers

> 
> At 10:52 AM 12/4/99 +1100, you wrote:
> 
> >Hello Mark,
> >
> >Since Jon hasn't answered this yet, I will.  Perhaps you are confused by 
> >the fact that there is no explicit pointer definition for Array@.  Array@ 
> >is a based pointer.  The compiler
> >automatically defines any pointer used in a BASED definition.  (I think 
> >that relying on this is sloppy and the programmer should code the pointer 
> >anyway, but that's just me!)
> 
>   You got it - that's what threw me.
> 
> >The rest of the code is pretty straight-forward.  The only real problem 
> >with such a technique
> >is that array elements need to be the same size hence the "PADn" variables.
> 
>   They are the same size.  I thought the "PADn" variables were for 
> illustration purposes, i.e. "other" fields.
> 
>   The way I'm understanding the rest of the code, assigning a regular field 
> value to a pointer variable will automatically result in the pointer 
> pointing to that variable's memory area. Correct?
> 
>   -mark

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