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POWhy can't std::bind and boost::bind be used interchangeably in this Boost.Asio tutorials
 

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  1. POWhy can't std::bind and boost::bind be used interchangeably in this Boost.Asio tutorials
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    <p>I was trying the differents tutorials in Boost.Asio documentation and tried to replace boost components with C++11 ones. However, I got an error using std::bind in <a href="http://www.boost.org/doc/libs/1_48_0/doc/html/boost_asio/tutorial/tuttimer5.html" rel="nofollow noreferrer">Timer.5 - Synchronising handlers in multithreaded programs</a>. Here is the code proposed:</p> <pre><code>#include &lt;iostream&gt; #include &lt;boost/asio.hpp&gt; #include &lt;boost/thread/thread.hpp&gt; #include &lt;boost/bind.hpp&gt; #include &lt;boost/date_time/posix_time/posix_time.hpp&gt; class printer { /* Not relevent here */ }; int main() { boost::asio::io_service io; printer p(io); boost::thread t(boost::bind(&amp;boost::asio::io_service::run, &amp;io)); io.run(); t.join(); return 0; } </code></pre> <p>I tried to replace <code>boost::thread</code> by <code>std::thread</code> and <code>boost::bind</code> by <code>std::bind</code>. Here is my code:</p> <pre><code>#include &lt;functional&gt; #include &lt;iostream&gt; #include &lt;thread&gt; #include &lt;boost/asio.hpp&gt; #include &lt;boost/date_time/posix_time/posix_time.hpp&gt; class printer { /* Not relevent here */ }; int main() { boost::asio::io_service io; printer p(io); std::thread t(std::bind(&amp;boost::asio::io_service::run, &amp;io)); io.run(); t.join(); } </code></pre> <p>When compiling with GCC 4.7, I got this compile-time error:</p> <pre><code>g++ -std=c++0x main.cpp -lboost_system -lboost_date_time -lpthread main.cpp: In function ‘int main()’: main.cpp:52:60: erreur: no matching function for call to ‘bind(&lt;unresolved overloaded function type&gt;, boost::asio::io_service*)’ main.cpp:52:60: note: candidates are: /usr/include/c++/4.6/functional:1444:5: note: template&lt;class _Functor, class ... _ArgTypes&gt; typename std::_Bind_helper::type std::bind(_Functor&amp;&amp;, _ArgTypes&amp;&amp; ...) /usr/include/c++/4.6/functional:1471:5: note: template&lt;class _Result, class _Functor, class ... _ArgTypes&gt; typename std::_Bindres_helper::type std::bind(_Functor&amp;&amp;, _ArgTypes&amp;&amp; ...) </code></pre> <p>Where is this error comming from, taking into account that I did not use any <code>boost::asio::placeholders</code> (as explain in this stackoverflow question <a href="https://stackoverflow.com/questions/8924149/should-stdbind-be-compatible-with-boostasio">Should std::bind be compatible with boost::asio?</a>)?</p>
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    1. COPossible Duplicate: see http://stackoverflow.com/questions/8924149/should-stdbind-be-compatible-with-boostasio).
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    2. COSince you're already using C++11: lambdas may be an alternative to `std::bind` for you, e.g., `std::thread t([&io]() { io.run(); });`. This avoid the overload resolution entirely.
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