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RevMedia

  1. Volume 1
    Issue 1
    Issue 2
    Issue 3
    Issue 4
    Issue 5
    Issue 6
    Issue 7
    Issue 8
    Issue 9
    Issue 10
  2. Volume 2
  3. Volume 3
  4. Volume 4
 

  1. @Attack
  2. Bugs and PC's
  3. Miscellaneous
  4. QTIPS
  5. Readers Clinic
  6. Readers Forum
  7. RTP Series
  8. Uncommon Knowledge

 

  1. Full Article List

QTIPS - Unassigned

There is a system function called UNASSIGNED which if passed the variable to be tested returns a 0 or a 1 depending on whether the variable is assigned or not. Usage is simple - EG


0001       SUBROUTINE TCL.SUB(BRANCH)
0002       DECLARE FUNCTION UNASSIGNED
0003       *
0004       IF UNASSIGNED (BRANCH) THEN
0005            BRANCH = "TCL"
0006       END

(Volume 1, Issue 1, Page 2)
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