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far more common for me is: if not (xxx in yyy) then. By the same logic it should be: if xxx not in yyy then </div>
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<div dir="ltr" class="gmail_attr">On Sep 11, 2026 at 2:00:47 PM, Mattias Gaertner via fpc-devel <<a href="mailto:fpc-devel@lists.freepascal.org">fpc-devel@lists.freepascal.org</a>> wrote:<br></div>
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Hi,<br><br>I would like to implement the "is not" operator in fpc. It was <br>introduced in Delphi 13.<br><br>For example:<br><br>if Obj is not TStringList then ...<br><br>It has the same precedence as "is". Since after "is" there can be only <br>an instance, class, interface, etc, and "not" is an all mode keyword, <br>I'm not aware of any conflicts or ambiguities - aka it cannot break any <br>existing code.<br><br>Ok?<br><br>Mattias<br><br>_______________________________________________<br>fpc-devel maillist - <a href="mailto:fpc-devel@lists.freepascal.org">fpc-devel@lists.freepascal.org</a><br><a href="https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel">https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel</a><br>
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