next-pow-2

next-pow-2

Round a nonnegative integer up to the next power of 2.

Example

var np2 = require('next-pow-2')

for(var i=0; i<=10; ++i) {
  console.log(i + ' rounds to ' + np2(i))
}

Output

0 rounds to 1
1 rounds to 1
2 rounds to 2
3 rounds to 4
4 rounds to 4
5 rounds to 8
6 rounds to 8
7 rounds to 8
8 rounds to 8
9 rounds to 16
10 rounds to 16

Install

npm i next-pow-2

API

require('next-pow-2')(x)

Rounds x to the next power of 2

• x is a nonnegative integer less than 2^32

Returns the next power of 2 after x

License

(c) 2015 Mikola Lysenko. MIT License