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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Operator Summary►  ◄Summary►
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  Syntax:  MASK {recordfieldname|record}
 
  Returns a bit mask for the bit positions in a record occupied by the
  given record field. A bit in the mask contains a 1 if that bit
  corresponds to a field bit. All other bits contain 0.
 
  recordfieldname   The name of any field in a previously defined record.
 
  record            The name of any previously defined record.
 
   See Also:  WIDTH, NOT, RECORD
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