title: Next Power Of 2 2
signature: function nextPowerOf22($n) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return serialize($actual) == serialize($expected);
  }
  
  function driver($n, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($n), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        63, 
        64));
      
      printf("TEST-1...%s\n",driver(
        78, 
        128));
      
      printf("TEST-2...%s\n",driver(
        13, 
        16));
      
      printf("TEST-3...%s\n",driver(
        5, 
        8));
      
      printf("TEST-4...%s\n",driver(
        34, 
        64));
      
      printf("TEST-5...%s\n",driver(
        69, 
        128));
      
      printf("TEST-6...%s\n",driver(
        63, 
        64));
      
      printf("TEST-7...%s\n",driver(
        78, 
        128));
      
      printf("TEST-8...%s\n",driver(
        80, 
        128));
      
      printf("TEST-9...%s\n",driver(
        19, 
        32));
      
  }
  
  main();
  ?>
source_py: def next_power_of_2_2(n):
      n -= 1
      n |= (n >> 1)
      n |= (n >> 2)
      n |= (n >> 4)
      n |= (n >> 8)
      n |= (n >> 16)
      n += 1
      return n
source_cpp: unsigned int next_power_of_2_2(unsigned int n) {
    n --;
    n |= n >> 1;
    n |= n >> 2;
    n |= n >> 4;
    n |= n >> 8;
    n |= n >> 16;
    n ++;
    return n;
  }