| /* global Float32Array */ |
| |
| // Credit: https://github.com/paulmillr/es6-shim/blob/master/es6-shim.js |
| |
| "use strict"; |
| |
| var toFloat32; |
| |
| if (typeof Float32Array === "undefined") { |
| toFloat32 = (function () { |
| var pack = require("../_pack-ieee754") |
| , unpack = require("../_unpack-ieee754"); |
| |
| return function (value) { return unpack(pack(value, 8, 23), 8, 23); }; |
| })(); |
| } else { |
| toFloat32 = (function () { |
| var float32Array = new Float32Array(1); |
| return function (num) { |
| float32Array[0] = num; |
| return float32Array[0]; |
| }; |
| })(); |
| } |
| |
| module.exports = function (value) { |
| if (isNaN(value)) return NaN; |
| value = Number(value); |
| if (value === 0) return value; |
| if (!isFinite(value)) return value; |
| |
| return toFloat32(value); |
| }; |