1) the link is bad

2) the current compiler flags dead code and does not compile it

IBM Mainframe Discussion List <[email protected]> wrote on 09/06/2006 
04:19:35 PM:

> This isn't exactly what you are talking about, but it looks like it can 
analyze flow control in COBOL programs:

> Never used it myself, just recalled seeing it awhile back.

> Craig S. Mullins
> -----Original Message-----
> Wednesday, September 06, 2006 2:54 PM

> I was just looking at some COBOL code because it just crashed one of our
> production CICS regions. I found the problem. Basically, an infinite
> loop where each iteration of the loop added one to a subscript value and
> put an "error message" into a table. The infinite loop is because the
> PERFORM of the paragraph used a WHEN clause which tested a variable
> which was not even referenced within the PERFORM'ed paragraphs.

> So now I wondering if there is any automated system which can detect
> things like this. I do know that in general, it would be difficult
> because flow of control can be very complicated. I also noticed that the
> "counter" for the array was PIC 9(3) USAGE DISPLAY. Another thing that I
> wish I could detect. 

> Is there anything on the market to detect errors or poor coding which is
> relatively OBVIOUS, if only somebody had the time to examine it?

> John McKown



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