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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // modification, are permitted provided that the following conditions are | 3 // found in the LICENSE file. |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | 4 |
28 'use strict'; | 5 'use strict'; |
29 | 6 |
30 // ES6 draft 09-27-13, section 20.2.2.28. | 7 // ES6 draft 09-27-13, section 20.2.2.28. |
31 function MathSign(x) { | 8 function MathSign(x) { |
32 x = TO_NUMBER_INLINE(x); | 9 x = TO_NUMBER_INLINE(x); |
33 if (x > 0) return 1; | 10 if (x > 0) return 1; |
34 if (x < 0) return -1; | 11 if (x < 0) return -1; |
35 if (x === 0) return x; | 12 if (x === 0) return x; |
36 return NAN; | 13 return NAN; |
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260 "fround", MathFround, | 237 "fround", MathFround, |
261 "clz32", MathClz32, | 238 "clz32", MathClz32, |
262 "cbrt", MathCbrt, | 239 "cbrt", MathCbrt, |
263 "log1p", MathLog1p, | 240 "log1p", MathLog1p, |
264 "expm1", MathExpm1 | 241 "expm1", MathExpm1 |
265 )); | 242 )); |
266 } | 243 } |
267 | 244 |
268 | 245 |
269 ExtendMath(); | 246 ExtendMath(); |
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