From 26105034da4fcce7ac883c899d781f016559310d Mon Sep 17 00:00:00 2001 From: ruki Date: Thu, 8 Nov 2018 00:38:48 +0800 Subject: switch to vuepress --- node_modules/es5-ext/math/imul/shim.js | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 node_modules/es5-ext/math/imul/shim.js (limited to 'node_modules/es5-ext/math/imul/shim.js') diff --git a/node_modules/es5-ext/math/imul/shim.js b/node_modules/es5-ext/math/imul/shim.js new file mode 100644 index 00000000..a14e5895 --- /dev/null +++ b/node_modules/es5-ext/math/imul/shim.js @@ -0,0 +1,17 @@ +/* eslint no-bitwise: "off" */ + +// Thanks: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference +// /Global_Objects/Math/imul + +"use strict"; + +module.exports = function (val1, val2) { + var xh = (val1 >>> 16) & 0xffff + , xl = val1 & 0xffff + , yh = (val2 >>> 16) & 0xffff + , yl = val2 & 0xffff; + + // The shift by 0 fixes the sign on the high part + // the final |0 converts the unsigned value into a signed value + return (xl * yl + ((xh * yl + xl * yh) << 16 >>> 0)) | 0; +}; -- cgit v1.2.3