X-Hacker.org- The Guide To Clipper - <b>testnul sets the zero flag if variable is zero (nul)</b>

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TESTNUL            Sets the zero flag if variable is zero (NUL)


Syntax:        TESTNUL variable

Description:   Sets the zero flag if variable is zero (NUL).  This macro
               can be used to test any size variable, but must be called
               to test pointers.

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