/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//-----------------------------------------------------------------------------
var BUGNUMBER = 465483;
var summary = 'Type instability leads to undefined being added as a string instead of as a number';
var actual = '';
var expect = '';


//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------

function test()
{
  enterFunc ('test');
  printBugNumber(BUGNUMBER);
  printStatus (summary);
 
  expect = 'NaN';

  for each (i in [4, 'a', 'b', (void 0)]) print(actual = '' + (i + i));

  reportCompare(expect, actual, summary);

  exitFunc ('test');
}
