Min Max Integer Delphi

  const
    MaxInt64: Int64 = $7FFFFFFFFFFFFFFF;
    MinInt64: Int64 = $8000000000000000;
    MaxInt32: Integer = $7FFFFFFF;
    MinInt32: Integer = $80000000;
    MaxUint32: Cardinal = $FFFFFFFF;
    MinUint32: Cardinal = $00000000;