[Boost-bugs] [Boost C++ Libraries] #1246: breakage in boost::python svn trunk

Subject: [Boost-bugs] [Boost C++ Libraries] #1246: breakage in boost::python svn trunk
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-09-12 13:36:51

#1246: breakage in boost::python svn trunk
-------------------------------------+--------------------------------------
 Reporter:  ndbecker2_at_[hidden]      |       Owner:  dave       
     Type:  Bugs                     |      Status:  new        
Milestone:  To Be Determined         |   Component:  Python     
  Version:  Boost Development Trunk  |    Severity:  Showstopper
 Keywords:                           |  
-------------------------------------+--------------------------------------
 New python function sig code breaks this test case (gcc-4.1.2):

 #include <boost/shared_ptr.hpp>
 #include <boost/python/module.hpp>
 #include <boost/python/def.hpp>
 #include <boost/python/class.hpp>
 #include <boost/python/init.hpp>

 using namespace boost::python;

 struct base {};
 struct concrete : public base {};

 struct Test {
   Test (boost::shared_ptr<base> _x) : x (_x) {}
   boost::shared_ptr<base> x;
 };

 BOOST_PYTHON_MODULE(test1) {
   class_<base, boost::noncopyable> ("base", "abstract", no_init);
   class_<concrete, bases<base> > ("concrete", "concrete");
   class_<Test> ("Test", init<boost::shared_ptr<base> >())
     .def_readonly ("x", &Test::x, "x") <<<< this seems to trigger the
 error
   ;
 }

 g++ -o mod/test1.os -c -g -DBOOST_DISABLE_THREADS -O3 -ftree-vectorize
 -fstrict-aliasing -ffast-math -DNDEBUG -Wall -fPIC -Isrc
 -I/usr/local/src/boost.hg -I/usr/include/python2.5 mod/test1.cc
 /usr/local/src/boost.hg/boost/python/to_python_value.hpp: In member
 function 'const PyTypeObject*
 boost::python::detail::shared_ptr_to_python_value<T>::get_pytype() const
 [with T = boost::shared_ptr<base>&]':
 /usr/local/src/boost.hg/boost/python/detail/caller.hpp:102:   instantiated
 from 'static const PyTypeObject*
 boost::python::detail::converter_target_type<ResultConverter>::get_pytype()
 [with ResultConverter =
 boost::python::to_python_value<boost::shared_ptr<base>&>]'
 /usr/local/src/boost.hg/boost/python/detail/caller.hpp:242:   instantiated
 from 'static boost::python::detail::py_func_sig_info
 boost::python::detail::caller_arity<1u>::impl<F, Policies,
 Sig>::signature() [with F =
 boost::python::detail::member<boost::shared_ptr<base>, Test>, Policies =
 boost::python::return_value_policy<boost::python::return_by_value,
 boost::python::default_call_policies>, Sig =
 boost::mpl::vector2<boost::shared_ptr<base>&, Test&>]'
 /usr/local/src/boost.hg/boost/python/object/py_function.hpp:48:
 instantiated from 'boost::python::detail::py_func_sig_info
 boost::python::objects::caller_py_function_impl<Caller>::signature() const
 [with Caller =
 boost::python::detail::caller<boost::python::detail::member<boost::shared_ptr<base>,
 Test>, boost::python::return_value_policy<boost::python::return_by_value,
 boost::python::default_call_policies>,
 boost::mpl::vector2<boost::shared_ptr<base>&, Test&> >]'
 mod/test1.cc:22:   instantiated from here
 /usr/local/src/boost.hg/boost/python/to_python_value.hpp:109: error: no
 matching function for call to
 'boost::python::detail::shared_ptr_to_python_value<boost::shared_ptr<base>&>::get_pytype(boost::type<boost::shared_ptr<base>&>*)
 const'
 /usr/local/src/boost.hg/boost/python/to_python_value.hpp:109: note:
 candidates are: const PyTypeObject*
 boost::python::detail::shared_ptr_to_python_value<T>::get_pytype() const
 [with T = boost::shared_ptr<base>&]
 scons: *** [mod/test1.os] Error 1
 scons: building terminated because of errors.

 Compilation exited abnormally with code 2 at Wed Sep 12 07:18:15

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1246>
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