Delphi Compiler Error
E2519 First parameter type of operator ‘%s’ and result type must be identical
Reason for the Error & Solution
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.