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2 /* ***** BEGIN LICENSE BLOCK *****
3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 * The contents of this file are subject to the Mozilla Public License Version
6 * 1.1 (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
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10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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15 * The Original Code is JavaScript Engine testing utilities.
17 * The Initial Developer of the Original Code is
19 * Portions created by the Initial Developer are Copyright (C) 2006
20 * the Initial Developer. All Rights Reserved.
22 * Contributor(s): Brendan Eich
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25 * either the GNU General Public License Version 2 or later (the "GPL"), or
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38 //-----------------------------------------------------------------------------
39 var BUGNUMBER = 329383;
40 var summary = 'Math copysign issues';
44 printBugNumber(BUGNUMBER);
45 printStatus (summary);
86 for (iinput = 0; iinput < inputs.length; iinput++)
88 var input = inputs[iinput];
89 reportCompare(Math.round(input),
91 summary + ': Math.round(' + input + ')');
94 reportCompare(isNaN(Math.round(NaN)),
95 isNaN(emulateRound(NaN)),
96 summary + ': Math.round(' + input + ')');
98 function emulateRound(x)
100 if (!isFinite(x) || x === 0) return x
101 if (-0.5 <= x && x < 0) return -0
102 return Math.floor(x + 0.5)
109 reportCompare(-Math.PI, Math.atan2(z, z), summary + ': Math.atan2(-0, -0)');
110 reportCompare(-Infinity, 1/z, summary + ': 1/-0');
114 reportCompare(0, Math.atan2(z, z), summary + ': Math.atan2(0, 0)');
115 reportCompare(Infinity, 1/z, summary + ': 1/0');