Re: Wrapping a std::list with boost.python

3 Nov 2002


      "jefflholle"  writes:
...
I've just started experimenting with version 2 of boost.python.
In iterator.cpp, a std::list is wrapped using following code:
typedef std::list<int> list_int;
   void push_back(list_int& x, int y)
   {
      x.push_back(y);
   }
int back(list_int& x)
   {
      return x.back();
   }
   .
   .
   .
    class_("list_int")
        .def("push_back", push_back)
        .def("back", back)
        .def("__iter__", iterator())
        ;
Is it possible to use the container methods instead of user defined 
functions?
Sure. But not for the standard containers, because you can't portably
take the address of a standard library (member) function. The
implementation is allowed to add overloads and default arguments, so
there's no way to reliably identify the function you're looking for.
...
I've tried the code:
   class_("list_int")
        .def("push_back", &list_int::push_back)
        .def("back", &list_int::back)
        .def("__iter__", iterator())
        ;
This doesn't work.
Am what I'm tried to do possible?
Yes.
...
If so, how?
Write your own container, with predictable function signatures ;-)

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