In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Zoot wrote:

[quote="BrooksL"]More dangerous; what if you have a define (or any) directive like '{$DEFINE DEBUGGING}  or  {$DEFINE DEBUGGING}  floating somewhere in a real 'comment statement - wil lthe compiler process it as a valid directive??[/quote]

No, they will not.

'{$DEFINE XYZ} 
above means XYZ is defined (true)

''{$DEFINE XYZ} 
not defined

' { $DEFINE XYZ} 
not defined

etc.

Not sure what the issue is? Rather then even "undefining" I would just comment out the define, e.g.

[code]
'{$DEFINE debugging}
'{$IFDEF debugging}
  'lots of code  that will compile
'{$ENDIF}
[/code]

[code]
''{$DEFINE debugging}
'{$IFDEF debugging}
  'lots of code  that will NOT compile
'{$ENDIF}
[/code]

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