var $ = require('../internals/export'); var fails = require('../internals/fails'); // eslint-disable-next-line es-x/no-math-imul -- required for testing var $imul = Math.imul; var FORCED = fails(function () { return $imul(0xFFFFFFFF, 5) != -5 || $imul.length != 2; }); // `Math.imul` method // https://tc39.es/ecma262/#sec-math.imul // some WebKit versions fails with big numbers, some has wrong arity $({ target: 'Math', stat: true, forced: FORCED }, { 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); } });