Can you please explain the code in detail?

Question

C++ / C#

I have this code, can you tell me what it does

if(number <= 0) return 1;
  double multi_factor = 1;
  std::cout << std::endl;
  while((buffer = number * multi_factor) >= 1){
    std::cout << buffer << " ";
    multi_factor /= 2;
    if(buffer % 2 != 0) break;

Answer 1

At the input we have some number. The specified code divides this number in half until it becomes odd. And at each step displays the result. But it looks wildly inefficient, maybe I'm wrong.