зеркало из https://github.com/mozilla/pjs.git
117 строки
3.1 KiB
JavaScript
Executable File
117 строки
3.1 KiB
JavaScript
Executable File
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is JavaScript Engine testing utilities.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s): Brendan Eich
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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var gTestfile = 'regress-329383.js';
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//-----------------------------------------------------------------------------
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var BUGNUMBER = 329383;
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var summary = 'Math copysign issues';
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var actual = '';
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var expect = '';
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printBugNumber(BUGNUMBER);
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printStatus (summary);
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var inputs = [
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-Infinity,
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-10.01,
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-9.01,
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-8.01,
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-7.01,
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-6.01,
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-5.01,
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-4.01,
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-Math.PI,
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-3.01,
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-2.01,
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-1.01,
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-0.5,
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-0.49,
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-0.01,
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-0,
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0,
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+0,
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0.01,
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0.49,
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0.50,
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0,
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1.01,
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2.01,
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3.01,
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Math.PI,
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4.01,
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5.01,
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6.01,
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7.01,
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8.01,
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9.01,
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10.01,
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Infinity
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];
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var iinput;
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for (iinput = 0; iinput < inputs.length; iinput++)
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{
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var input = inputs[iinput];
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reportCompare(Math.round(input),
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emulateRound(input),
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summary + ': Math.round(' + input + ')');
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}
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reportCompare(isNaN(Math.round(NaN)),
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isNaN(emulateRound(NaN)),
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summary + ': Math.round(' + input + ')');
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function emulateRound(x)
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{
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if (!isFinite(x) || x === 0) return x
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if (-0.5 <= x && x < 0) return -0
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return Math.floor(x + 0.5)
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}
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var z;
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z = Math.min(-0, 0);
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reportCompare(-Math.PI, Math.atan2(z, z), summary + ': Math.atan2(-0, -0)');
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reportCompare(-Infinity, 1/z, summary + ': 1/-0');
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z = Math.max(-0, 0);
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reportCompare(0, Math.atan2(z, z), summary + ': Math.atan2(0, 0)');
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reportCompare(Infinity, 1/z, summary + ': 1/0');
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