Hi all,

Given the following WS:


01  TEST-RANGE-SW                       PIC X(1).
      88  TEST-RANGE                             VALUE "B" THRU "Y".



Does the compiler generate code that determines (binary search, etc.) that a variable (or constant) is out of the acceptable range, or does the compiler actually generate code that would result in an evaluation  of each condition one at a time?

For example, I could create the self explanatory manual code: 
        IF "A" < "B" 
          PERFORM FOUND-IT.

Or I could do this, but would the code have to check for every value of "B" through "Y" to determine that "A" was not in TEST-RANGE?
        MOVE "A" TO TEST-RANGE-SW
        IF NOT TEST-RANGE
          PERFORM FOUND-IT.




TIA for your time,


Ray Shahan

Life is not a journey to the grave with the
intention of arriving safely in a pretty and
well preserved body, but rather to skid in
broadside, thoroughly used up, totally worn out,
and loudly proclaiming:

        -- WOW!!!   What a Ride! --

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