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copied!<p>What error(s) are you getting exactly? I don't see anything obviously wrong in the code shown in your question, so I can't give you a direct answer.</p> <p>However, Kornel's answer made me doubt, as I thought that the functors generated by boost::bind can take any number of arguments and simply ignore the extra ones.</p> <p>So I quickly hacked this to verify:</p> <pre><code>#include <boost/asio.hpp> #include <boost/bind.hpp> #include <boost/shared_ptr.hpp> #include <boost/enable_shared_from_this.hpp> #include <boost/function.hpp> #include <string> #include <iostream> void Foo(const boost::system::error_code&) { // whatever } struct Client : boost::enable_shared_from_this<Client> { void HandleWrite( const boost::system::error_code& Err, boost::function<void(const boost::system::error_code&)> OtherHandler ) { std::cout << "MyHandler(" << Err << ")\n"; OtherHandler(Err); } void MakeTheCall(boost::function<void (const boost::system::error_code&)> Other) { using boost::asio::ip::tcp; // Of course, the scope and initialization of // io_service, sock and request are all wrong here, // as we're only interested in testing if the async_write // call below will compile. // Don't try to run this at home! boost::asio::io_service io_service; tcp::socket sock(io_service); boost::asio::streambuf request; boost::asio::async_write(sock, request, boost::bind(&Client::HandleWrite, shared_from_this(), boost::asio::placeholders::error, Other ) ); } }; int main() { boost::shared_ptr<Client> c; c->MakeTheCall(boost::bind(&Foo, _1)); return 0; } </code></pre> <p>which is sketching what I guess you're trying to do.</p> <p>As expected, it does compile, so comparing it with what you're actually doing may help you finding the problem.</p>

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