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copied!<p>You're using the local variable <code>buf</code> as the read buffer, which is dangerous and won't work. Also, you're just sending the original contents of that buffer to the handler. So instead, you need to use a buffer with a longer lifetime. Something like this:</p> <pre><code>class Server { ..... boost::array<char, 1> buf; void Server::accepted() { std::cout << "Accepted!" << std::endl; boost::asio::async_read(socket, boost::asio::buffer(buf), boost::bind(&Server::handleRead, this, boost::asio::placeholders::error)); } void Server::handleRead(const boost::system::error_code& error) { if(!error) { std::cout << "Message: " << buf.data() << std::endl; } else { std::cout << "Error occurred." << std::endl; } } ..... } </code></pre> <p><strong>edit</strong>: or alternatively, using a heap allocated buffer (not sure if the code is right, but you'll get the idea):</p> <pre><code>void Server::accepted() { std::cout << "Accepted!" << std::endl; boost::shared_ptr<boost::array<char, 1>> buf(new boost::array<char, 1>); boost::asio::async_read(socket, boost::asio::buffer(*buf), boost::bind(&Server::handleRead, this, buf, boost::asio::placeholders::error)); } void Server::handleRead(boost::shared_ptr<boost::array<char, 1>> buf, const boost::system::error_code& error) { if(!error) { std::cout << "Message: " << buf->data() << std::endl; } else { std::cout << "Error occurred." << std::endl; } } </code></pre>

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