Boost C++ test case for libs

cpp

#include <iostream>
#include <boost/filesystem.hpp>
#include <boost/thread.hpp>
#include <boost/atomic.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/iostreams/device/null.hpp>

// Atomic counter
boost::atomic<int> counter(0);

// A simple thread function
void thread_function() {
    for(int i = 0; i < 10000; ++i) {
        ++counter;
    }
}

int main() {
    // Using boost::filesystem to create a directory
    boost::filesystem::path dir("./boost_test_dir");
    if(boost::filesystem::create_directory(dir)) {
        std::cout << "Directory created successfully!" << std::endl;
    } else {
        std::cout << "Directory already exists or failed to create!" << std::endl;
    }

    // Using boost::thread to spawn two threads
    boost::thread t1(thread_function);
    boost::thread t2(thread_function);
    t1.join();
    t2.join();
    std::cout << "Counter after two threads: " << counter.load() << std::endl;

    // Using boost::iostreams to create a null output stream
    boost::iostreams::stream<boost::iostreams::null_sink> nullOstream((boost::iostreams::null_sink()));
    nullOstream << "This message goes nowhere!";

    return 0;
}