Problems adapting member functions in Phoenix

I use BOOST_PHOENIX_ADAPT_FUNCTION all the time in Spirit. I'd like to be able to adapt member functions for all of the same reason. However, I get compile errors if I do something like this:

struct A { int foo(int i) { return 5*i; }};

BOOST_PHOENIX_ADAPT_FUNCTION(int, AFoo, &A::foo, 2)

Is there an easy way to adapt a member function? Note that I can't just store a bind expression in an auto because I am on VC2008. How come it doesn't just work like in bind and function?

Thanks,

Mike

The BOOST_PHOENIX_ADAPT_FUNCTION(RETURN,LAZY_NAME,FUNC,N)is really simple. It just creates a functor with a templated operator() that returns RETURN and has N template parameters. In its body it simply invokes FUNC(PARAMETERS...). But &A::foo is not directly callable, and so your error occurs. You can use:

BOOST_PHOENIX_ADAPT_FUNCTION(int,AFoo,boost::mem_fn(&A::foo),2)

Running on Coliru

#include <iostream>
#include <boost/phoenix.hpp>
#include <boost/phoenix/function.hpp>
#include <boost/mem_fn.hpp>

struct A {
    A(int f) : f_(f) {}

    int foo(int i) {
        return f_*i;
    }
  private: 
    int f_;
};

BOOST_PHOENIX_ADAPT_FUNCTION(int,AFoo,boost::mem_fn(&A::foo),2)

int main() {
    using namespace boost::phoenix;
    using namespace boost::phoenix::arg_names;

    A instance(5);
    std::cout << AFoo(arg1,arg2)(&instance, 2) << std::endl;
}