CALCID~1.TXT

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function ROL(l:longint):longint;
begin
  ROL:=(l shl 1) or (l shr 31);
end;

function CalcID(name:string):longint;
type PLong = ^longint;
var l,i:integer;
    Calc:longint;
begin

  l:=length(name);
  if l>12 then l:=12;
  for i:=1 to l do Name[i]:=UpCase(Name[i]);
  for i:=l+1 to 13 do name[l]:=0;

  Calc:=0;
  l:=1;
  while name[l]<>#0 do
  begin
    Calc:=ROL(Calc)+PLong(@name[l])^;
    Inc(l,4);
  end;

  CalcID:=Calc;
end;

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