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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/library/modules/es7.math.umulh.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/library/modules/es7.math.umulh.js')
| -rw-r--r-- | node_modules/core-js/library/modules/es7.math.umulh.js | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/node_modules/core-js/library/modules/es7.math.umulh.js b/node_modules/core-js/library/modules/es7.math.umulh.js new file mode 100644 index 00000000..3ddfa468 --- /dev/null +++ b/node_modules/core-js/library/modules/es7.math.umulh.js @@ -0,0 +1,16 @@ +// https://gist.github.com/BrendanEich/4294d5c212a6d2254703 +var $export = require('./_export'); + +$export($export.S, 'Math', { + umulh: function umulh(u, v) { + var UINT16 = 0xffff; + var $u = +u; + var $v = +v; + var u0 = $u & UINT16; + var v0 = $v & UINT16; + var u1 = $u >>> 16; + var v1 = $v >>> 16; + var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16); + return u1 * v1 + (t >>> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >>> 16); + } +}); |
