Super simple UDP client using boost

UDPClient.hpp

/*
This Program uses OS independet boost library 'asio'.

Below are some web links for programming UDP sockets with linux specific libraries using functions: 'gethostbyname', 'bind' and
'socket'. Please note, however, that these functions are superseded by 'getaddrinfo' and 'getnameinfo' nowadays. These functions
provide better support for IPv6.

https://www.ibm.com/developerworks/library/wa-ipv6.html
http://openbook.rheinwerk-verlag.de/linux_unix_programmierung/Kap11-016.htm#RxxKap11016040003951F04F100
https://www.cs.rutgers.edu/~pxk/417/notes/sockets/udp.html
*/

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

using boost::asio::ip::udp;

class UDPClient
{
public:
	UDPClient(
		boost::asio::io_service& io_service, 
		const std::string& host, 
		const std::string& port
	) : io_service_(io_service), socket_(io_service, udp::endpoint(udp::v4(), 0)) {
		udp::resolver resolver(io_service_);
		udp::resolver::query query(udp::v4(), host, port);
		udp::resolver::iterator iter = resolver.resolve(query);
		endpoint_ = *iter;
	}

	~UDPClient()
	{
		socket_.close();
	}

	void send(const std::string& msg) {
		socket_.send_to(boost::asio::buffer(msg, msg.size()), endpoint_);
	}

private:
	boost::asio::io_service& io_service_;
	udp::socket socket_;
	udp::endpoint endpoint_;
};

int main()
{
	boost::asio::io_service io_service;
	UDPClient client(io_service, "localhost", "1337");

	client.send("Hello, World!");
}