// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion int toUnsigned(int width)
/// Returns the least significant width bits of this integer as a non-negative
/// number (i.e. unsigned representation). The returned value has zeros in all
/// bit positions higher than width.
///
/// (-1).toUnsigned(5) == 31   // 11111111  ->  00011111
/// ...
/// @description Checks that this method returns the least significant width bits
/// of this integer as a non-negative number
/// @author sgrekhov@unipro.ru

import "../../../Utils/expect.dart";

main() {
  Expect.equals(1, (-1).toUnsigned(1)); // 11111111 -> 00000001
  Expect.equals(3, (-1).toUnsigned(2)); // 11111111 -> 00000011
  Expect.equals(7, (-1).toUnsigned(3)); // 11111111 -> 00000111
  Expect.equals(15, (-1).toUnsigned(4)); // 11111111 -> 00001111
  Expect.equals(31, (-1).toUnsigned(5)); // 11111111 -> 00011111
  Expect.equals(63, (-1).toUnsigned(6)); // 11111111 -> 00111111
  Expect.equals(127, (-1).toUnsigned(7)); // 11111111 -> 01111111
  Expect.equals(255, (-1).toUnsigned(8)); // 11111111 -> 11111111
}