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How to create an operator overload that only accepts nil
Since the introduction of Nullable types in Spring4D they had a problem: assigning null to them was cumbersome. Some time ago you could implicitly assign a Variant to them which made it possible to assign Null. However that caused some issue because of implicit Variant type conversion.Imagine you ...http://feeds.feedburner.com/~r/delph...~4/EdTjetGmI4E
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