I'm trying to run C++ code that uses the Boost library

Question

I would prefer not to download anything, but if I must, I can do so. I am just trying to run a simple multi-threaded program using the Boost library on many of the online compilers, but none of them even recognize

#include <boost/thread.hpp>

and

using namespace boost::this_thread;

The code itself is taken from this link: https://www.quantnet.com/threads/c-multithreading-in-boost.10028/

I have done my googling and tried out a lot of online compilers but none of them seem willing to recognize Boost or its associated libraries.

This is the code:

#include <iostream>
#include <boost/thread.hpp>

using namespace std;
using namespace boost;
using namespace boost::this_thread;

// Global function called by thread
void GlobalFunction()
{
   for (int i=0; i<10; ++i) {
       cout<< i << "Do something in parallel with main method." << endl;
       boost::this_thread::yield(); // 'yield' discussed in section 18.6
   }
}

int main()
{
    boost::thread t(&GlobalFunction);
    for (int i=0; i<10; i++) {
        cout << i <<"Do something in main method."<<endl;
    }
    return 0;
}

Answer 1

just use the C++11 threads. Ideone has threading disabled apparently but I had no problem running it on http://www.compileonline.com/ (just be sure to select C++11 and not C++)

#include <iostream>
#include <thread>
// Global function called by thread
void GlobalFunction()
{
    for (int i = 0; i < 10; ++i)
    {
        std::cout << i << "Do something in parallel with main method." << std::endl;
        std::this_thread::yield(); // 'yield' discussed in section 18.6
    }
}


int main()
{
    std::thread t(&GlobalFunction);

    for (int i = 0; i < 10; i++)
    {
        std::cout << i << "Do something in main method." << std::endl;
    }


    return 0;
}

Answer 2

如果您需要使用boost，则必须下载它……计算机上不存在这些标头。

Answer 3

Wandbox is an online C++ IDE that contains BOOST libraries. It supports up-to-date BOOST version (currently 1.67.0)

Note: your code example works fine in BOOST versions up to 1.64.0.