Generate UUIDs in C++

#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
#include <boost/uuid/uuid_io.hpp>
#include <iostream>
#include <string>

int main() {
    // UUID v4 (random) using Boost
    boost::uuids::random_generator gen;
    boost::uuids::uuid uuid = gen();

    std::cout << uuid << std::endl;  // Example: 3d6f9e64-7d8a-4c3e-8f2b-1a4e5c6d7e8f

    // Convert to string
    std::string uuid_str = boost::uuids::to_string(uuid);
    std::cout << uuid_str << std::endl;

    // Generate multiple UUIDs
    for (int i = 0; i < 5; ++i) {
        std::cout << gen() << std::endl;
    }

    // UUID v5 (namespaced)
    boost::uuids::name_generator_sha1 name_gen(boost::uuids::ns::dns());
    boost::uuids::uuid uuid5 = name_gen("example.com");
    std::cout << uuid5 << std::endl;  // Always same

    // Parse UUID from string
    std::string uuid_string = "3d6f9e64-7d8a-4c3e-8f2b-1a4e5c6d7e8f";
    boost::uuids::string_generator string_gen;
    boost::uuids::uuid parsed = string_gen(uuid_string);
    std::cout << parsed << std::endl;

    return 0;
}

// Compile: g++ -std=c++11 uuid_example.cpp -lboost_system