Re: [Boost-users] [Boost.Bind] Adding a single argument to an existing function, breaks the code.

From: Vjekoslav Brajkovic (balkan_at_[hidden])
Date: 2008-07-03 20:45:03

On Thu, 3 Jul 2008, Steven Watanabe wrote:
> Exactly the same errors? Including the third line of the error message?
> I've marked that parts I would expect to be different.
>
> /usr/local/include/boost-1_35/boost/bind/bind_template.hpp:15: instantiated 
> from ?boost::_bi::bind_t<
> **boost::_bi::unspecified** // void??
> , void (com_client::*)(command_t, const boost::system::error_code&, 
> boost::asio::ip::basic_resolver_iterator<boost::asio::ip::tcp>),
> //Something involving _mfi::?? ^^^^^^^^^^^
> boost::_bi:: list3<boost::_bi::value<com_client*>, boost::arg<1> (*)(),
> boost::_bi:: value<boost::asio::ip::basic_resolver_iterator<boost::asio::ip::tcp> 
>> > >?

Thank you for taking your time to solve my problem.

I've reproduced the output. Apparently, all of the outputs are the same.

-------------------------------------------------------
core dev/uleDFS/uleDFS% diff original.txt explicit.txt 
core dev/uleDFS/uleDFS% diff original.txt mem_fn.txt 
-------------------------------------------------------

>
> What is the type of boost::mem_fn(&com_client::handle_connect)?
> I usually get this information using
>
> # include <boost/mpl/assert.hpp>
> # include <boost/type_traits/is_same.hpp>
>
> BOOST_MPL_ASSERT((boost::is_same<__typeof__(boost::mem_fn(&com_client::handle_connect)), 
> void>)) ;

I've added the code with the following results:

----------------------------------------------------------------------
../intercom/com_client.cpp:40: error: no matching function for call to
‘assertion_failed(mpl_::failed************
                 boost::is_same<boost::_mfi::mf3<void, com_client, command_t,
                 const boost::system::error_code&,
                 boost::asio::ip::basic_resolver_iterator<boost::asio::ip::tcp>
 		>, void>::************)’
----------------------------------------------------------------------

Since I am not familiar with static assertion macros, I have no clue why
it is complaining about 'no matching function for call'.

-V