LibTest/core/int/operator_left_shift_A01_t01.dart

// Copyright (c) 2011, 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 operator <<(int shiftAmount)
/// This operator implements bit-wise left-shift operation.
/// @description Checks that this operator returns correct value for non-negative
/// and not exceedingly large arguments.
/// @author vasya
/// @issue 42892

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

main() {
  Expect.equals(0, 0 << 2);
  Expect.equals(1, 1 << 0);
  Expect.equals(14, 7 << 1);
  Expect.equals(36, 9 << 2);
  Expect.equals(32, 4 << 3);
  Expect.equals(14, 7 << 1);
  Expect.equals(52, 13 <<2);
  Expect.equals(16, 1 << 4);
  Expect.equals(0, 0 << 4);
  Expect.equals(4, 4 << 0);
  
  Expect.equals(1024, 1 << 10);
  Expect.equals(512, 1 << 9);
  Expect.equals(256, 1 << 8);
  Expect.equals(128, 1 << 7);
  Expect.equals(64, 1 << 6);
  Expect.equals(32, 1 << 5);
  Expect.equals(16, 1 << 4);
  Expect.equals(8, 1 << 3);
  Expect.equals(4, 1 << 2);
  Expect.equals(2, 1 << 1);
  Expect.equals(1, 1 << 0);
  if (!isJS) {
    Expect.equals(-1024, -1 << 10);
    Expect.equals(-512, -1 << 9);
    Expect.equals(-256, -1 << 8);
    Expect.equals(-128, -1 << 7);
    Expect.equals(-64, -1 << 6);
    Expect.equals(-32, -1 << 5);
    Expect.equals(-16, -1 << 4);
    Expect.equals(-8, -1 << 3);
    Expect.equals(-4, -1 << 2);
    Expect.equals(-2, -1 << 1);
    Expect.equals(-1, -1 << 0);
  }
}