[Boost-users] boost::thread and boost::bind

6 Apr 2004

      I am attempting to do this in vs.net 2003:

int f(HANDLE, HANDLE, HANDLE);

int main(int argc, char* argv[])
{
	HANDLE x;
	HANDLE y;
	HANDLE z;

	boost::thread* p = new boost::thread(boost::bind(f, x, y, z);

	p->join();
	delete p;
}

As a contrived example it works.  In my project it does not, spewing  
out 5 errors:
1) c:\src\include\boost\bind.hpp(62) : error C2825: 'F::result_type':  
cannot form a qualified name
         c:\src\include\boost\bind\bind_template.hpp(16) : see reference  
to class template instantiation 'boost::_bi::result_traits<R,F>' being  
compiled with
         [
             R=boost::_bi::unspecified,
             F=int (__cdecl *)(HANDLE,HANDLE)
         ]
         c:\src\ansa-1.0\src\main\main.cpp(369) : see reference to class  
template instantiation 'boost::_bi::bind_t<R,F,L>' being compiled
         with
         [
             R=boost::_bi::unspecified,
             F=int (__cdecl *)(HANDLE,HANDLE),
			L=boost::_bi::list3<boost::_bi::list_av_3<fd_xpt,fd_xpt,fd_xpt>:: 
B1,boost::_bi::list_av_3<fd_xpt,fd_xpt,fd_xpt>::B2,boost::_bi:: 
list_av_3<fd_xpt,fd_xpt,fd_xpt>::B3>
         ]

2) c:\src\include\boost\bind.hpp(62) : error C2039: 'result_type' : is  
not a member of 'operator``global namespace'''

3) c:\src\include\boost\bind.hpp(62) : error C2146: syntax error :  
missing ';' before identifier 'type'

4) c:\src\include\boost\bind.hpp(62) : error C2955: 'boost::_bi::type'  
: use of class template requires template argument list
         c:\src\include\boost\bind.hpp(94) : see declaration of  
'boost::_bi::type'
5) c:\src\include\boost\bind.hpp(62) : fatal error C1903: unable to  
recover
from previous error(s); stopping compilation

note: fd_xpt is declared as "typedef HANDLE fd_xpt;", and  
c:\src\ansa-1.0\src\main\main.cpp(369) is similar to "boost::thread* p  
= new boost::thread(boost::bind(f, x, y, z);" in the example.

It appears that the compiler thinks my first argument is a "int  
(__cdecl *)(HANDLE,HANDLE)" when it is most certainly a "int (__cdecl  
*)(HANDLE,HANDLE,HANDLE)".  It used to take two arguments, but I've  
since added a third (it was at this very point that these errors  
crashed the party).  I am sure that there is no declaration that  
specifies only two arguments: I've had two other developers verify  
this.  I have cleaned my project multiple times, even by hand, as well  
as getting a clean source tree from cvs, and yet I still get these  
errors.

Any suggestions on how to silence these errors are greatly appreciated.
--mpeltzer goochrules@hotmail.com

[Boost-users] boost::thread and boost::bind

GoochRules!