On 05/02/2026 14:34, Hairy Pixels via fpc-pascal wrote:
Is this a bug? Adding the class var field changes prints 0 and without it prints 100 as expected. The class var is just a static field that isn't actually part of the record so how could it affect the memory layout?

A class var is (as the name suggest "not instance") not part of the instance. (instead a scoped global var).

So a pointer to the instance can not be to the memory that holds the class var data.


type
  TMyRec = record
    class var z: UInt32;
    x, y: UInt32;
  end;

var
  r: TMyRec;
  p: pointer;
begin
  r.x := 100;
  p := @r;

  writeln(PUInt32(p)^);
end.

_______________________________________________
fpc-pascal maillist  -  [email protected]
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal

Reply via email to