Re: overlaying arrays in v5r1

Hi Vern -

On Tue, 21 Jan 2014 04:19:09 -0600, Vernon Hamberg
<vhamberg@xxxxxxxxxxxxxxx> wrote:

I've used this same technique in the past, probably without problems.
Bit I think I've been told (maybe Jon Paris) that this technique is not
guaranteed to be safe. There is no guarantee that contiguous fields will
be brought into the program buffers in the same order - each field is
brought into internal buffers individually - unless using LIKEREC or
EXTNAME.

Now maybe we could use a pointer to the subfield in the LIKEREC DS as
the based pointer of the stand-alone array - then it wouldn't matter, so
long as the fields in question remain contiguous in the format.

Oops, my bad!

I forgot to mention that when I use this technique, I do always use a
data structure for the record format to ensure that fields are
together in storage as expected.

Jon is completely correct that if you don't use a data structure,
there is no guarantee the fields will be contiguous in storage.

Ken
Opinions expressed are my own and do not necessarily represent the views
of my employer or anyone in their right mind.