import std.stdio;

import core.thread : Fiber;


void fib(ref int current){
  current = 0;
  int next = 1;
  
  while(true){
    Fiber.yield();
    
    const next2 = current + next;
    current = next;
    next = next2;
  }
}


void test6_spawner(){
  int current;
  
  Fiber fiber = new Fiber(() => fib(current));
  
  int i = 0;
  while(i < 10){
    fiber.call();
    
    writef("%s ", current);
    i++;
  }
  
}

/*

./vtest2
hello here!
0 1 1 2 3 5 8 13 21 34

*/