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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/core-js/modules/es6.math.imul.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/core-js/modules/es6.math.imul.js')
| -rw-r--r-- | node_modules/core-js/modules/es6.math.imul.js | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/es6.math.imul.js b/node_modules/core-js/modules/es6.math.imul.js new file mode 100644 index 00000000..96e683d2 --- /dev/null +++ b/node_modules/core-js/modules/es6.math.imul.js @@ -0,0 +1,17 @@ +// 20.2.2.18 Math.imul(x, y) +var $export = require('./_export'); +var $imul = Math.imul; + +// some WebKit versions fails with big numbers, some has wrong arity +$export($export.S + $export.F * require('./_fails')(function () { + return $imul(0xffffffff, 5) != -5 || $imul.length != 2; +}), 'Math', { + imul: function imul(x, y) { + var UINT16 = 0xffff; + var xn = +x; + var yn = +y; + var xl = UINT16 & xn; + var yl = UINT16 & yn; + return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0); + } +}); |
