/*
 * 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 double operator +(num other)
 * @description Checks that if one operand is a positive infinity and the other
 * is a negative infinity the result is NaN.
 * @author pagolubev
 * @reviewer msyabro
 */
import "../../../Utils/expect.dart";


final double positive_infinity = 1 / 0;
final double negative_infinity = -1 / 0;

checkNaN(d) {
  var msg = 'expected: NaN, actual: $d';
  Expect.isTrue(d.isNaN, msg);
}

main() {  
  checkNaN(positive_infinity + negative_infinity);
  checkNaN(negative_infinity + positive_infinity);
}