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node_modules/es5-ext/math/_unpack-ieee754.js
Maintainability
47.02
Lines of code
31
Difficulty
42.66
Estimated Errors
0.38
Function weight
By Complexity
By SLOC
// Credit: https://github.com/paulmillr/es6-shim/ 'use strict'; var pow = Math.pow; module.exports = function (bytes, ebits, fbits) { // Bytes to bits var bits = [], i, j, b, str, bias, s, e, f; for (i = bytes.length; i; i -= 1) { b = bytes[i - 1]; for (j = 8; j; j -= 1) { bits.push(b % 2 ? 1 : 0); b = b >> 1; } } bits.reverse(); str = bits.join(''); // Unpack sign, exponent, fraction bias = (1 << (ebits - 1)) - 1; s = parseInt(str.substring(0, 1), 2) ? -1 : 1; e = parseInt(str.substring(1, 1 + ebits), 2); f = parseInt(str.substring(1 + ebits), 2); // Produce number if (e === (1 << ebits) - 1) return f !== 0 ? NaN : s * Infinity; if (e > 0) return s * pow(2, e - bias) * (1 + f / pow(2, fbits)); if (f !== 0) return s * pow(2, -(bias - 1)) * (f / pow(2, fbits)); return s < 0 ? -0 : 0; };