[C++-sig] Boost Python wrapper<> causing a compile error C2664 in vc++ 8.0

[Roman Yakovenko]

On 9/7/07, Matthew Scouten (TT) <Matthew.Scouten at tradingtechnologies.com>
wrote:
>
>  I am trying to wrap a class with virtual functions in c++, to be over
> loaded in Python, and called from c++.
> I have been working up to full functionality gradually but I have hit a
> road block.
> My code (trimmed to only relevant parts, with the identifiers changed to
> protect the guilty):
>
>  class CProofOfConcept {
>
> public:
>
>                 int x;
>
>
>
>                 CProofOfConcept(void);
>
>                 //CProofOfConcept(float f);
>
>                 std::string conceptProven(std::string = "My kingdom for a
> valid arg!");
>
>                 virtual std::string reality(void) const;
>
>                 std::string ProofOfCallback();
>
>                 virtual std::string sureality(void);
>
>                 virtual ~CProofOfConcept(void);
>
>
>
> private:
>
>                 float y;
>
> };
>
>
>
> class CProofOfConceptWrapper: public CProofOfConcept, public
> wrapper<CProofOfConcept>
>
> {
>
> };
>
>
>
> BOOST_PYTHON_MODULE(poc)
>
> {
>
>                 class_<CProofOfConceptWrapper>("CPOC")
>
>                                 .def("reality",
> &CProofOfConceptWrapper::reality)
>
>                                 .def_readwrite("x",
> &CProofOfConceptWrapper::x)
>
>                                 .def("ProofOfCallback" ,
> &CProofOfConceptWrapper::ProofOfCallback)
>
>                                 ;
>
> }
>


Here is the code Py++ generated:


struct CProofOfConcept_wrapper : CProofOfConcept, bp::wrapper<
CProofOfConcept > {

    CProofOfConcept_wrapper(CProofOfConcept const & arg )
    : CProofOfConcept( arg )
      , bp::wrapper< CProofOfConcept >(){
        // copy constructor

    }

    CProofOfConcept_wrapper( )
    : CProofOfConcept( )
      , bp::wrapper< CProofOfConcept >(){
        // null constructor

    }

....

};

BOOST_PYTHON_MODULE(pyplusplus){
    bp::class_< CProofOfConcept_wrapper >( "CProofOfConcept" )
        .def( bp::init< >() )
        ....
}

P.S. If you just start with Boost.Python I suggest you to try Py++ (
http://language-binding.net/pyplusplus/documentation/tutorials/pyplusplus_gui.html).
I think you will not be disappointed.

-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/cplusplus-sig/attachments/20070907/30d1b1f7/attachment.htm>