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QTIPS - Guaranteed Variable AssignmentThe system function UNASSIGNED (Vol 1 Issue 1) is most often used within a program to trap and assign to null, unassigned variables e.g. 0001 DECLARE FUNCTION UNASSIGNED 0002 IF UNASSIGNED(X) THEN X= "" A new system function GUAR_ASSIGN can be used to take the place of the above code. Passed a variable, it returns the value of the variable if it is assigned. or null if it is unassigned. i.e. 0001 DECLARE FUNCTION GUAR_ASSIGN 0002 X = GUAR_ASSIGN(X) (Volume 2, Issue 10, Page 3) |
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