Similarly to the libc frexp
function, this decomposes a given integer value x
into an integer coefficient c
and an integral power of two n
such that
c * 2n = x
ldexp
is also provided as an inverse function for convenience.
Returns [coefficient, exponent]
e.g.
const {intexp} = require('intexp');
const decomposed = intexp(4864) // [19, 8]
Returns integer given coefficient and exponent. e.g.
const {ldexp} = require('intexp');
const int = ldexp(19, 8) // 4864