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On 2012/5/21 5:22 PM, Jon Paris wrote:
... I seem to recall a
conversation with Barbara where she told me that they had decided
that setting the back end of a varying to blanks was probably a waste
of time but by then couldn't change the behaviour because undoubtedly
someone had decided it was a "feature" by then.
Jon, I sort of recall a conversation about that, but not the details.
Maybe I was explaining that we _couldn't_ set the unused chars to blank
because of compatibility (assuming we'd even want to).
Even initialization doesn't set unused chars to blank, although with
data structure subfields it might appear as though it does.
D ds ds
D fld1 1 6a inz(*all'a')
D varOver 1 6a varying inz('12')
D varAlone 5a varying inz('xyz')
D varfld s 5a varying inz('abc')
===> EVAL DS:x
0002F1F2 81810003 A7A8A940 40...... - ..12aa..xyz ...
Only the "good part" of varOver is set, so the last part of fld1's
initial value of all a's gets through. For varAlone, it looks like the
end of the data is set to blanks, but that's really just the default
initial value of the DS.
===> EVAL varfld:x
00038182 830000.. ........ ........ - ..abc.
The unused part of varfld is explicitly set to hex zeros. That might
also might be what you were recalling?
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