[C++-sig] bad iterator related warning

[Nikolay Mladenov]

I updated from the CVS and now I am getting scary warning 
wherever I have used python::iterator<>:

d:\shared\boost_1_31_0\boost\boost\python\object\iterator.hpp(66) :
warning C4172: returning address of local variable or temporary
       
d:\projects\boost_1_31_0\boost\boost\python\object\iterator.hpp(63) :
while compiling class-template member function 'struct OBJ &__thiscall
boost::python::objects::iterator_range<struct
boost::python::return_value_policy<struct boost
::python::return_by_value,struct
boost::python::default_call_policies>,struct
OBJARR::iterator>::next::operator ()(struct
boost::python::objects::iterator_range<struct
boost::python::return_value_policy<struct
boost::python::return_by_value,struct b
oost::python::default_call_policies>,struct OBJARR::iterator> &)'

the sample code reproducing it follows

Thanks,

Nikolay Mladenov



#include <boost/python.hpp>

struct OBJ{
public :
    OBJ(int p=0):prop(p){}
    int prop;
};

struct OBJARR{
    struct iterator : std::iterator<std::input_iterator_tag, OBJ>{
		bool operator == (const iterator &other)const {return other.p==p;}
		bool operator != (const iterator &other)const {return other.p!=p;}
		OBJ operator *() const {return *p;}
		iterator &operator ++() {++p; return *this;}
		iterator operator ++(int) {iterator res = *this ; ++p; return res;}

        iterator(int *ptr):p(ptr){}
    private:
        int *p;
    };
    iterator begin() { return iterator(p); }
    iterator end() { return iterator(p+10); }
private:
        int p[10];
};


namespace python = boost::python;

BOOST_PYTHON_MODULE(iter)
{
        python::class_<OBJ>("OBJ", python::init<int> ());
        python::class_<OBJARR>("OBJARR")
            .def("__iter__",
python::iterator<OBJARR,python::return_value_policy<python::return_by_value>
>() );
        ;
    
}