#include <iostream>

int main() 
{ 
  // prints 3, 10 times
  int y = 0;
  while (int x = 3)
  {
    if ( ++y > 10 )
      break;

    std::cout << x++ << std::endl;
  }

  // prints 0 to 9
  y = 0;
  for ( ; ; )
  {
    std::cout << y << std::endl;

    if ( ++y >= 10 )
      break;
  }

  switch(y)
  {
    case 0:
      // This is ill-formed, 6.7, you can not transfer into a block and bypass initialization
      // int x = 0; 
     
      int x;
      x = 0;
    break;
    case 1:
    break;
  }

  return 0;
}