"Alex" <alex@glumol.com> writes:

I can't build the "Virtual Functions with Default Implementations" code sample from the online tutorial :

struct Base { virtual int f() { return 0; } };

struct BaseWrap : Base { BaseWrap(PyObject* self_) : self(self_) {} int f() { return call_method<int>(self, "f"); } int default_f() { return Base::f(); } // <<=== ***ADDED*** PyObject* self; };

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class_<Base, BaseWrap>("Base") .def("f", &Base::f, &BaseWrap::default_f)

--> get the error "value_holder.hpp(131) : error C2661: 'BaseWrap::BaseWrap' : no overloaded function takes 2 parameters"

This is a tutorial bug. We need to either: 1. Add a copying constructor: BaseWrap(PyObject* self_, Base const& rhs) : Base(rhs), self(self_) {} 2. Use noncopyable in the wrapper: class_<Base, BaseWrap, noncopyable>("Base") .def("f", &Base::f, &BaseWrap::default_f) ; [Joel, could you choose an appropriate fix?]

(btw I can build all the other code samples from the tutorial)

That's a relief!

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other newbie questions :

Is there a place on the web where all the c++-sig@python mails are archived ?

http://www.boost.org/more/mailing_lists.htm#cplussig lists two archives in addition to http://mail.python.org/pipermail/c++-sig/..

Does pyste can convert C++ function arguments to python keyword arguments ?

I don't think so; IIRC GCC_XML doesn't give us the declared argument names (if any). Nicodemus? -- Dave Abrahams Boost Consulting www.boost-consulting.com