$Align — директива компилятора

// Declare a packed record
TPackedRecord = Packed Record
name1 : string[4];
floater : single;
name2 : char;
int : Integer;
end;

// Set alignment off
{$Align Off}

// Declare an unpacked record
// This will get treated as if packed was on
TUnPackedRecord = Record
name1 : string[4];
floater : single;
name2 : char;
int : Integer;
end;

var
alignedRec : TAlignedRecord;
packedRec : TPackedRecord;
unPackedRec : TUnPackedRecord;

begin
ShowMessage(‘Aligned record size = ‘+IntToStr(SizeOf(alignedRec)));
ShowMessage(‘Packed record size = ‘+IntToStr(SizeOf(packedRec)));
ShowMessage(‘UnPacked record size = ‘+IntToStr(SizeOf(unPackedRec)));
end;