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- var sign = require('../internals/math-sign');
- var abs = Math.abs;
- 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;
- };
- // `Math.fround` method implementation
- // https://tc39.es/ecma262/#sec-math.fround
- // eslint-disable-next-line es/no-math-fround -- safe
- module.exports = Math.fround || function fround(x) {
- var $abs = 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 -- NaN check
- if (result > MAX32 || result != result) return $sign * Infinity;
- return $sign * result;
- };
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