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  1.  Home
  2. RPG400-L
  3. August 2003

Re: Record name the same as the file name

Bob cozzi wrote: 
Hans,
The change could be to just allow any Qualified data structure as the target
rather than a short list of specific keywords used when declaring a data
structure.  What's the difference between LIKEREC and LIKEDS to the
Programmer? There should be no difference to the programmer. I could accept
a QUALIFIED limitation or no other limitation, but not a short list that
needs to be, (A) documented, (B) explained, (C) Taught, (D) Learned, and (E)
Comprehended.


I don't disagree with your argument, Bob. As I said, we've been flip-flopping ourselves on what to allow for result DS on externally described I/O. At one point, we were prepared to have only the requirement that the result DS have the same length as the record length of the record or file. (Just like with program described I/O.) Unfortunately, that didn't mesh well with certain other language features, like null-capable fields. And so we flip-flopped back to requiring some sort of definitional link between the record or file and the data structure. That is, either LIKEREC or LIKEDS where the definition can be followed back to the record. In practice, this is what you would do anyways even with less restrictive rules, since there would still be too much room for error otherwise.

Cheers! Hans



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