Question: Suppose a specific Unicon value, such as the null value, was particularly common when marking live data. Under what circumstances would it make sense to

Suppose a specific Unicon value, such as the null value, was particularly common when marking live data. Under what circumstances would it make sense to modify the PostDescrip() macro to check for that value to see if the tests in the Qual() and Pointer() macros can be avoided?

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