#include <iostream>
#include <vector>
#include <chrono>

#include "ThreadPool.h"

int main()
{
 
 ThreadPool pool(4);
 std::vector< std::future<int> > results;

 for(int i = 0; i < 8; ++i) {
 results.emplace_back(
 pool.enqueue([i] {
 std::cout << "hello " << i << std::endl;
 std::this_thread::sleep_for(std::chrono::seconds(1));
 std::cout << "world " << i << std::endl;
 return i*i;
 })
 );
 }

 for(auto && result: results)
 std::cout << result.get() << ' ';
 std::cout << std::endl;
 
 return 0;
}