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It's been a while since I looked at the initialization for user spaces. But for varying length variables I just looked it up - first 2 bytes initialized to zeroes, the rest to blanks, it says. You can get bit using DS's, since the whole thing will be initialized to blanks, unless you put INZ on the whole DS, or on individual fields - then the size of the varying field would look like x'4040' - a very big number - heh!!

I still thought I'd seen a time when variables get initialized to zeroes (nulls) but can't remember.

Later
Vern

-------------- Original message ----------------------
From: Adam Glauser <adamglauser@xxxxxxxxxxxx>
Vernon Hamberg wrote:
Some variables get initialized with nulls - hex 00 - I forget
now the circumstances.

IIRC x'00' is the default initialization value for User Spaces. It's
been awhile, I forget whether initialization has to be explicitly
requested, or explicitly refused.

There may be other cases where this is used as an initialization value,
but that's the only one that comes to mind for me.
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