Question

Brief version of my question:

This code crashes the compiler.

pThread[0] = new boost::thread(
boost::bind(
    &cGridAnimator::DoJob,  // member function
       this ),                 // instance of class
       0 );                 // job number

The compiler crashes when attempting to compile this code. ( It is not my program that crashe when I run this code! )

What needs to be fixed?

---

Long version of question

I am splitting up the work on a large 3D grid into 8 seperate jobs to be run in seperate threads, so as to take advantage of an 8 core machine.

This works perfectly:

    JOB_LOOP {
        pThread[kjob] = new boost::thread( ::DoJob, kjob );
    }

The global free function DoJob reads the data from a global instance of cGridAnimator, according to the job number.

However, I do not like all these globals floating around, and I do not like having to use so many accessor methods to get at the necessary data. It would be much tidier to use a method of cGridAnimator.

Hence the code at the top of this question.

However, when I compile it on MSVC++ 2008 the compiler issues the following complaints and then crashes.

1>Compiling...
1>mfm1.cpp
1>C:\Program Files\boost\boost_1_38_0\boost/bind.hpp(1643) : warning C4180: qualifier applied to function type has no meaning; ignored
1>        C:\Program Files\boost\boost_1_38_0\boost/bind.hpp(1677) : see reference to class template instantiation 'boost::_bi::add_cref<Pm,I>' being compiled
1>        with
1>        [
1>            Pm=void (__thiscall cGridAnimator::* )(int),
1>            I=1
1>        ]
1>        .\mfm1.cpp(158) : see reference to class template instantiation 'boost::_bi::dm_result<Pm,A1>' being compiled
1>        with
1>        [
1>            Pm=void (__thiscall cGridAnimator::* )(int),
1>            A1=cGridAnimator *
1>        ]
1>C:\Program Files\boost\boost_1_38_0\boost/mem_fn.hpp(318) : warning C4180: qualifier applied to function type has no meaning; ignored
1>        C:\Program Files\boost\boost_1_38_0\boost/bind/bind_template.hpp(344) : see reference to class template instantiation 'boost::_mfi::dm<R,T>' being compiled
1>        with
1>        [
1>            R=void (int),
1>            T=cGridAnimator
1>        ]
1>Project : error PRJ0002 : Error result 1 returned from 'C:\Program Files\Microsoft Visual Studio 9.0\VC\bin\cl.exe'.

Answer 1

Change the code into:

pThread[0] = new boost::thread(boost::bind(&cGridAnimator::DoJob, this, 0 ));  

This code gives a void (void) function to the thread instead of a void (int) function and an extra argument.