Binary convert Int to Float in Kotlin

Question

I want to handle a value that has been read from file as 4 byte integer as if it was a 4 byte IEEE Float and convert it into such a variable. Are there any experiences, how this can be done in Kotlin in an easy and elegant way.

Answer 1

Use java.lang.Float.intBitsToFloat. Note that this assumes a particular (though conventional) bit layout - see the docs for the inverse (floatToIntBits) for details.

Example:

import java.lang.Float.intBitsToFloat

// ...

val x = 0x4D8EF3C2
println(intBitsToFloat(x))  // 2.99792448E8

^{Live demo.}