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A while ago Allen Bauer commented on the working theory of Nullable in Delphi

The Wiert Corner – I missed this last May, but revisiting some old G+ posts I saw Allen Bauer commenting: Current working theory of Nullable<T>. Nullable<T> = record ... property Value: T read FValue; default; ... end; Using the default directive to “hoist” the operators of “T”. Currently the default directive only works for array properties by “hoisting” the ‘[]’ operator. Marking a non-array property with default will make the containing type behave as that type. This, coupled with some intrinsic compiler knowledge of the Nullable<T> type will ...
Favorite? Off-Topic? jpluimers @ 2015-09-25 13:00

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