[C++-sig] compile problem with stl list

[David Abrahams]

"Scott A. Smith" <ssmith at magnet.fsu.edu> writes:

> Hello,
>
> I have a small test that mimicks what I want to do:
>
>
> #include <list>
> typedef std::list<double> stdlistSP;            // Using typedef on STL list
>
> #include <boost/python/module.hpp>
> #include <boost/python/def.hpp>
> #include <boost/python/class.hpp>
> using namespace boost::python;
>
> BOOST_PYTHON_MODULE(simple)
> {
>     class_<stdlistSP>("stdlistSP", init<int>())
>     .def("push_back", &stdlistSP::push_back)
>     ;
> }
>
> When I build this using MSVC++ V6 everything works fine, but when I try
> the same using Cygwin/GCC it produces the following error:
>
> simple.cpp: In function `void init_module_simple()':
> simple.cpp:13: no matching function for call to `
>    boost::python::class_<stdlistSP, boost::python::detail::not_specified,
>    boost::python::detail::not_specified,
> boost::python::detail::not_specified>
>    ::def(const char[10], <unknown type>)'
>
> If is switch from list<double> to vector<double> it again works just fine.
> Anyone know what I need to do?

You're generally prohibited from taking the address of a standard
library function, because it might be overloaded or have optional
arguments. In this case I bet that list::push_back is overloaded.

A thin forwarding function could be wrapped instead:

   void list_push_back(stdlistSP& l, double x) { l.push_back(x); }

-Dave
-- 
                       David Abrahams
   dave at boost-consulting.com * http://www.boost-consulting.com
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