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    Delphi Error – E2543 Instantiated data type ‘%s’ too large: exceeds 2 GB

    admin November 17, 2022 No Comments

    Delphi Compiler Error

    E2543 Instantiated data type ‘%s’ too large: exceeds 2 GB

    Reason for the Error & Solution

    This occurs when the type for the generic class is too large. 

    program E2543;
{E2543 Instantiated data type '%s' too large: exceeds 2 GB}

{$APPTYPE CONSOLE}

uses
  SysUtils;

type
  TGenericArray <T> = class
    a: array [1..MaxLongint] of T;

  end;

var
  array1 : TGenericArray<Longint>;
begin
   array1 :=  TGenericArray<Longint>.Create;
end.

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