diff options
Diffstat (limited to 'node_modules/core-js/modules/_math-fround.js')
| -rw-r--r-- | node_modules/core-js/modules/_math-fround.js | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/_math-fround.js b/node_modules/core-js/modules/_math-fround.js new file mode 100644 index 00000000..c85eb4b7 --- /dev/null +++ b/node_modules/core-js/modules/_math-fround.js @@ -0,0 +1,23 @@ +// 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; +}; |
