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At it's most basic...
The cycle is an implicit DOU %eof(Primary) loop.
There's lots more too it, but that's the key.
Need a program to print a list all customer names in the CUSTMAST file?
Create an RPG program with
- declare CUSTMAST designated as a primary file. (f-spec)
- declare a printer file (f-spec)
- define output record for the printer file (o-spec)
And boom, you're done. Not a single line of executable code (c-spec)
written by you needed. The cycle handles input and output.
(Ok, I'm ignoring printer overflow handling, but even that's handled in the
o-specs IIRC)
Charles
On Thu, Apr 27, 2017 at 1:38 PM, Douglas Dunn <dunndouglas0@xxxxxxxxx>
wrote:
As another young developer just getting into iSeries, I promise to only
write new software with the modern techniques. And I should probably get
RDi. I am still curious about the old fixed-form style, mainly because the
syntax looks very exotic to me. Can someone explain the concept of the
"cycle" that was mentioned about?
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