main.cpp

#include <iostream>
#include <thread>
#include <chrono>
#include "Async.h"

int slowAdd(){
    std::cout << "Slowly adding numbers from 1 to 1000:\n";
    int count = 0;

    for(int i = 1; i <= 1000; ++ i){
        count += i;
        std::this_thread::sleep_for(std::chrono::milliseconds(5));
    }

    return count;
}

int main(){
    std::cout << "Without Async:\n";

    int count = slowAdd();
    std::cout << "Ideally printed out before slowAdd returns, which should be in about 5 sec\n";
    std::cout << "slowAdd returned: " << count << "\n\n";

    std::cout << "With Async:\n";

    Async<int> countAsync(slowAdd);
    std::cout << "Ideally printed out before slowAdd returns, which should be in about 5 sec\n";
    std::cout << "slowAdd returned: " << countAsync.wait() << "\n\n";
}