The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_5/Regress/regress-329383.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,83 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +//-----------------------------------------------------------------------------
    1.10 +var BUGNUMBER = 329383;
    1.11 +var summary = 'Math copysign issues';
    1.12 +var actual = '';
    1.13 +var expect = '';
    1.14 +
    1.15 +printBugNumber(BUGNUMBER);
    1.16 +printStatus (summary);
    1.17 +
    1.18 +var inputs = [
    1.19 +  -Infinity,
    1.20 +  -10.01,
    1.21 +  -9.01,
    1.22 +  -8.01,
    1.23 +  -7.01,
    1.24 +  -6.01,
    1.25 +  -5.01,
    1.26 +  -4.01,
    1.27 +  -Math.PI,
    1.28 +  -3.01,
    1.29 +  -2.01,
    1.30 +  -1.01,
    1.31 +  -0.5,
    1.32 +  -0.49,
    1.33 +  -0.01,
    1.34 +  -0,
    1.35 +  0,
    1.36 +  +0,
    1.37 +  0.01,
    1.38 +  0.49,
    1.39 +  0.50,
    1.40 +  0,
    1.41 +  1.01,
    1.42 +  2.01,
    1.43 +  3.01,
    1.44 +  Math.PI,
    1.45 +  4.01,
    1.46 +  5.01,
    1.47 +  6.01,
    1.48 +  7.01,
    1.49 +  8.01,
    1.50 +  9.01,
    1.51 +  10.01,
    1.52 +  Infinity
    1.53 +  ];
    1.54 +
    1.55 +var iinput;
    1.56 +
    1.57 +for (iinput = 0; iinput < inputs.length; iinput++)
    1.58 +{
    1.59 +  var input = inputs[iinput];
    1.60 +  reportCompare(Math.round(input),
    1.61 +                emulateRound(input),
    1.62 +                summary + ': Math.round(' + input + ')');
    1.63 +}
    1.64 +
    1.65 +reportCompare(isNaN(Math.round(NaN)),
    1.66 +              isNaN(emulateRound(NaN)),
    1.67 +              summary + ': Math.round(' + input + ')');
    1.68 +
    1.69 +function emulateRound(x)
    1.70 +{
    1.71 +  if (!isFinite(x) || x === 0) return x
    1.72 +    if (-0.5 <= x && x < 0) return -0
    1.73 +      return Math.floor(x + 0.5)
    1.74 +      }
    1.75 +
    1.76 +var z;
    1.77 +
    1.78 +z = Math.min(-0, 0);
    1.79 +
    1.80 +reportCompare(-Math.PI, Math.atan2(z, z), summary + ': Math.atan2(-0, -0)');
    1.81 +reportCompare(-Infinity, 1/z, summary + ': 1/-0');
    1.82 +
    1.83 +z = Math.max(-0, 0);
    1.84 +
    1.85 +reportCompare(0, Math.atan2(z, z), summary + ': Math.atan2(0, 0)');
    1.86 +reportCompare(Infinity, 1/z, summary + ': 1/0');