source: imaps-frontend/node_modules/es-abstract/helpers/fractionToBinaryString.js@ d565449

'use strict';

var MAX_ITER = 1075; // 1023+52 (subnormals) => BIAS+NUM_SIGNFICAND_BITS-1
var maxBits = 54; // only 53 bits for fraction

module.exports = function fractionToBitString(x) {
        var str = '';
        if (x === 0) {
                return str;
        }
        var j = MAX_ITER;

        var y;
        // Each time we multiply by 2 and find a ones digit, add a '1'; otherwise, add a '0'..
        for (var i = 0; i < MAX_ITER; i += 1) {
                y = x * 2;
                if (y >= 1) {
                        x = y - 1; // eslint-disable-line no-param-reassign
                        str += '1';
                        if (j === MAX_ITER) {
                                j = i; // first 1
                        }
                } else {
                        x = y; // eslint-disable-line no-param-reassign
                        str += '0';
                }
                // Stop when we have no more decimals to process or in the event we found a fraction which cannot be represented in a finite number of bits...
                if (y === 1 || i - j > maxBits) {
                        return str;
                }
        }
        return str;
};