E2519 First parameter type of operator '%s' and result type must be identical (Object Pascal)

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This occurs when the type of the parameter for the overloaded operator differs from the return type of the operator.


program E2519;

{$APPTYPE CONSOLE}

uses
  SysUtils;

type
TMyRecord = record
    class operator Inc(a: TMyRecord): Boolean; //E2519
  end;

class operator TMyRecord.Inc(a: TMyRecord): Boolean;
begin
   // code
end;

begin
  Writeln('E2519 First parameter type of operator ''%s'' and result type must be identical');
end.

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