> try use boost::noncopyable to B or implemente a copy constructor in B
> without call A copy contructor.
Thank you. This works:
BOOST_PYTHON_MODULE(boost_ext)
{
class_<A, boost::noncopyable> a("A",init<>());
class_<B, bases<A>, boost::noncopyable >("B",init<>());
}
One more question about the syntax. You cited
http://www.boost.org/doc/libs/1_37_0/libs/python/doc/v2/class.html#class_-spec
which specifies the syntax as "class_<T,Bases,HeldType,NonCopyable>" so that I
thought I have to include all 4 template arguments. But when I used instead of
the above (working!) solution:
class_<A, bases<>, A, boost::noncopyable> a("A",init<>());
class_<B, bases<A>, B, boost::noncopyable >("B",init<>());
I get the error:
>/home/mihail/temporary/boost_1_37_0/boost/python/object/value_holder.hpp:159:
>error: no matching function for call to
>‘B::B(PyObject*&)’
>boost.cpp:13: note: candidates are: B::B()
>boost.cpp:11: note: B::B(const B&)
Why does the abbreviated template argument list work, and why not the complete
argument list?
Thank you
Mihail
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