Important Notice

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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

  ◄Compiler Directives► ◄Contents► ◄Index►                        ◄Back►
 
  {$IFNDEF <symbol>}
 
  Description
 
    Begins compilation of code, where <symbol> is not defined.
    Compilation continues until terminated by {$ENDIF}. You can nest
    {$IFNDEF <symbol>} {$ENDIF} pairs 16 levels deep.
 
  See also:  {$DEFINE}, {$ELSE}, {$ENDIF}, {$IFDEF}, {$UNDEF}