(Basic) Client VS Server (boost)

//CLIENT

#pragma warning(disable : 4996)

#include <iostream>
#include <string>
#include <boost/asio.hpp>

using boost::asio::ip::tcp;

int main(int argc, char* argv[])
{
    try
    {
        if (argc != 2)
        {
            std::cerr << "Usage: daytime_client <host>" << std::endl;
            return 1;
        }

        tcp::iostream s(argv[1], "daytime");
        std::string line;
        std::getline(s, line);
        std::cout << line << std::endl;
    }
    catch (std::exception& e)
    {
        std::cout << "Exception: " << e.what() << std::endl;
    }

    return 0;
}

//SERVER

#pragma warning(disable : 4996)

#include <ctime>
#include <iostream>
#include <string>
#include <boost/asio.hpp>

using boost::asio::ip::tcp;

std::string make_daytime_string()
{
    using namespace std; // For time_t, time and ctime;
    time_t now = time(0);
    return ctime(&now);
}

int main()
{
    try
    {
        boost::asio::io_service io_service;

        tcp::endpoint endpoint(tcp::v4(), 13);
        tcp::acceptor acceptor(io_service, endpoint);

        for (;;)
        {
            tcp::iostream stream;
            acceptor.accept(*stream.rdbuf());
            stream << make_daytime_string();
        }
    }
    catch (std::exception& e)
    {
        std::cerr << e.what() << std::endl;
    }

    return 0;
}