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Contents
// 20.2.2.16 Math.fround(x)
var sign = require('./_math-sign');
var pow = Math.pow;
var EPSILON = pow(2, -52);
var EPSILON32 = pow(2, -23);
var MAX32 = pow(2, 127) * (2 - EPSILON32);
var MIN32 = pow(2, -126);
var roundTiesToEven = function (n) {
return n + 1 / EPSILON - 1 / EPSILON;
};
module.exports = Math.fround || function fround(x) {
var $abs = Math.abs(x);
var $sign = sign(x);
var a, result;
if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
a = (1 + EPSILON32 / EPSILON) * $abs;
result = a - (a - $abs);
// eslint-disable-next-line no-self-compare
if (result > MAX32 || result != result) return $sign * Infinity;
return $sign * result;
};
Version data entries
82 entries across 38 versions & 8 rubygems