Move up slice element, golang

moveupslice.go

//find "up" in slice and move it to begin of slice
func upslice(f *[]uint32, up uint32) {
	if len((*f)) == 0 || (*f)[0] == up {
		return
	}

	if (*f)[len(*f)-1] == up {
		(*f) = append([]uint32{up}, (*f)[:len(*f)-1]...)
		return
	}

	for p, x := range *f {
		if x == up {
			(*f) = append([]uint32{up}, append((*f)[:p], (*f)[p+1:]...)...)
			break
		}
	}
}