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  1.  Home
  2. RPG400-L
  3. November 2008

Re: DS Array



I've been playing with a DS defined with DIM as opposed to OCCURS
for the first time.

I noticed while debugging that if I type EVAL MyDS I see all the
elements from 1 to the last. As it happens I have 10 elements. But I
can type EVAL MyDS(0) or EVAL MyDS(100000) or any other number as
the element number. I suppose thes elements are also available to
the program, so whats the point of stating DIM(10) on my DS specs
and controlling that I don't try and put more than 10 rows in it?

What's happening?

The debugger has no real reason to do the range checking that a running RPG
program will do so it probably simply does what you tell it and calculates the
address of the element based on what you tell it. I'd have expected zero to
cause a problem - but I'm not that surprised that it doesn't.

Jon Paris
Partner400
www.Partner400.com


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