Delphi Error – E2571 Type parameter ‘%s’ doesn’t have class or interface constraint

Delphi Compiler Error

E2571 Type parameter ‘%s’ doesn’t have class or interface constraint

Reason for the Error & Solution

This occurs when the type constraint is not an interface or class type.

program E2571;
{E2571 Type parameter '%s' doesn't have a class or interface constraint}

{$APPTYPE CONSOLE}

uses
  SysUtils;

type
 MyRec<T> = record
    a: array [1..T] of Logint;
 end;

begin

end.

Share:

Leave A Reply

Your email address will not be published. Required fields are marked *

You May Also Like

Delphi Compiler Error E2313 Attribute – Known attribute cannot specify properties Reason for the Error & Solution No further information...
Delphi Compiler Error E2379 Virtual methods not allowed in record types Reason for the Error & Solution No further information...
Rodrigo , one of the long time Delphi Developer has been working on one of his personal project “Delphi IDE...