Rich kids are into COBOL

Chuck Guzis cclist at sydex.com
Wed Feb 18 12:24:31 CST 2015


On 02/18/2015 08:55 AM, Sean Conner wrote:

>> It's that variable scope of a PERFORM that I don't recall seeing in any
>> other language.
>
>    Am I missing someting?

Yes, you are.  Control flow can also "drop though" when executing the 
paragraphs.  In any other language, you'd have to invoke the paragraphs 
explicitly.


Thus:

Para-1.
    ...some code...
Para-2.
     ...some more code...
Para-3.
      ---yet more code...
Para-4.
      ...and some other code...


If control flow proceeds normally (or via a GO TO) to Para-1, control 
will normally flow from there out the bottom of Para-4.

--Chuck






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