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Variant parts of records


There is only a makeshift to treat variant parts in records: all fields are listed in equal rank:


TRect = packed record
  case Integer of
    0: (Left, Top, Right, Bottom: Longint);
    1: (TopLeft, BottomRight: TPoint);
end;
->

struct TRect {
/* case Integer of */
/* 0 */ int Left, Top, Right, Bottom;
/* 1 */ TPoint TopLeft, BottomRight;
};

Unions would be candidates for a better translation of variant parts in C++.



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