Go byte slice to float32 slice

byte_slice_to_float32_slice.go

package main

import (
	"fmt"
	"unsafe"
)

func byteSliceToFloat32Slice(src []byte) []float32 {
	if len(src) == 0 {
		return nil
	}

	l := len(src) / 4
	ptr := unsafe.Pointer(&src[0])
	// It is important to keep in mind that the Go garbage collector
	// will not interact with this data, and that if src if freed,
	// the behavior of any Go code using the slice is nondeterministic.
	// Reference: https://github.com/golang/go/wiki/cgo#turning-c-arrays-into-go-slices
	return (*[1 << 26]float32)((*[1 << 26]float32)(ptr))[:l:l]
}

func main() {
	a := []byte{0, 0, 0, 0, 1, 1, 1, 1}
	fmt.Println(byteSliceToFloat32Slice(a))
	// Output: [0 2.3694278e-38]
}

please I need to float64