Error in help: "$UNDEFINE" should be "$UNDEF" - confirmed

[Dany]

v4.80 bèta: "{$UNDEFINE ...} does not work, {$UNDEF ...} does.

According to the helpfile:

Use $UNDEFINE to undefine (“clear”) previously defined flag.

This directive does not seem to work, but $UNDEF does work as intended, see code below:

Code: Select all

program Undefinetest;
var str: string[10];
begin
{$DEFINE abc}
{$IFDEF abc}
  Str := 'abc';  // <--- executed, OK
{$ELSE}
  Str := 'def';
{$ENDIF}

{$UNDEFINE abc}
{$IFDEF abc}
  Str := 'abc';  // <--- executed, NOT OK
{$ELSE}
  Str := 'def';
{$ENDIF}

{$UNDEF abc}
{$IFDEF abc}
  Str := 'abc';
{$ELSE}
  Str := 'def';// <--- executed, OK, apparently $UNDEF does undefine
{$ENDIF}

{$DEFINE abc}
{$IFDEF abc}
  Str := 'abc';// <--- executed, OK
{$ELSE}
  Str := 'def';
{$ENDIF}

end.

Thanks in advance!

[filip]

Hi,

This is an error in the help file, which we will correct.
Thank you for the report and I apologize for the inconvenience.

Regards,
Filip.