Hello. You have provided too much information.
Small example with short problem description can definitely help ( you )
On Fri, Apr 16, 2010 at 11:42 AM, François ALLAIN <frall...@gmail.com> wrote:
> Hello, I followed the "official" tutorial and others but still don't manage
> to expose this pure virtual method (getPeptide) :
>
> ms_mascotresults.hpp
>
> class ms_mascotresults {
> public:
>
>
>
> ms_mascotresults(ms_mascotresfile &resfile,
> const unsigned int flags,
>
>
> double minProbability,
> int maxHitsToReport,
>
>
> const char * unigeneIndexFile,
>
>
> const char * singleHit = 0);
>
>
> ...
>
> virtual ms_peptide getPeptide(const int q, const int p) const = 0;
>
>
> }
>
>
>
> ms_mascotresults.cpp
>
> #include <boost/python.hpp>
>
>
> using namespace boost::python;
>
>
> #include "msparser.hpp" // which includes "ms_mascotresults.hpp"
>
>
> using namespace matrix_science;
> #include <iostream>
>
>
> #include <sstream>
>
> struct ms_mascotresults_wrapper : ms_mascotresults,
> wrapper<ms_mascotresults> {
>
>
> ms_peptide getPeptide(const int q, const int p) {
>
>
> this->get_override("getPeptide")(q);
>
>
> this->get_override("getPeptide")(p);
>
>
> }
> };
>
> BOOST_PYTHON_MODULE(ms_mascotresults)
>
>
> {
> class_<ms_mascotresults_wrapper, boost::noncopyable>("ms_mascotresults")
>
>
> .def("getPeptide", pure_virtual(&ms_mascotresults::getPeptide) )
>
>
> ;
> }
>
>
>
> Here are the bjam's errors :
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:66: error:
> cannot declare field
> ‘boost::python::objects::value_holder<ms_mascotresults_wrapper>::m_held’ to
> be of abstract type ‘ms_mascotresults_wrapper’
>
>
> ms_mascotresults.cpp:12: note: because the following virtual functions are
> pure within ‘ms_mascotresults_wrapper’:
>
>
> ...
> include/ms_mascotresults.hpp:334: note: virtual
> matrix_science::ms_peptide matrix_science::ms_mascotresults::getPeptide(int,
> int) const
>
>
> ms_mascotresults.cpp: In constructor
> ‘ms_mascotresults_wrapper::ms_mascotresults_wrapper()’:
>
>
> ms_mascotresults.cpp:12: error: no matching function for call to
> ‘matrix_science::ms_mascotresults::ms_mascotresults()’
>
>
> include/ms_mascotresults.hpp:284: note: candidates are:
> matrix_science::ms_mascotresults::ms_mascotresults(matrix_science::ms_mascotresfile&,
> unsigned int, double, int, const char*, const char*)
>
>
> include/ms_mascotresults.hpp:109: note:
> matrix_science::ms_mascotresults::ms_mascotresults(const
> matrix_science::ms_mascotresults&)
>
>
> ...
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp: In constructor
> ‘boost::python::objects::value_holder<Value>::value_holder(PyObject*) [with
> Value = ms_mascotresults_wrapper]’:
>
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:137: note:
> synthesized method ‘ms_mascotresults_wrapper::ms_mascotresults_wrapper()’
> first required here
>
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:137: error:
> cannot allocate an object of abstract type ‘ms_mascotresults_wrapper’
>
>
> ms_mascotresults.cpp:12: note: since type ‘ms_mascotresults_wrapper’ has
> pure vi
>
> Hello, I followed the "official" tutorial and others but still don't manage
> to expose this pure virtual method (getPeptide) :
>
> ms_mascotresults.hpp
>
> class ms_mascotresults {
> public:
>
>
>
> ms_mascotresults(ms_mascotresfile &resfile,
> const unsigned int flags,
>
>
> double minProbability,
> int maxHitsToReport,
>
>
> const char * unigeneIndexFile,
>
>
> const char * singleHit = 0);
>
>
> ...
>
> virtual ms_peptide getPeptide(const int q, const int p) const = 0;
>
>
> }
>
> ms_mascotresults.cpp
>
> #include <boost/python.hpp>
>
>
> using namespace boost::python;
>
>
> #include "msparser.hpp" // which includes "ms_mascotresults.hpp"
>
>
> using namespace matrix_science;
> #include <iostream>
>
>
> #include <sstream>
>
> struct ms_mascotresults_wrapper : ms_mascotresults,
> wrapper<ms_mascotresults> {
>
>
> ms_peptide getPeptide(const int q, const int p) {
>
>
> this->get_override("getPeptide")(q);
>
>
> this->get_override("getPeptide")(p);
>
>
> }
> };
>
> BOOST_PYTHON_MODULE(ms_mascotresults)
>
>
> {
> class_<ms_mascotresults_wrapper, boost::noncopyable>("ms_mascotresults")
>
>
> .def("getPeptide", pure_virtual(&ms_mascotresults::getPeptide) )
>
>
> ;
> }
>
> Here are the bjam's errors :
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:66: error:
> cannot declare field
> ‘boost::python::objects::value_holder<ms_mascotresults_wrapper>::m_held’ to
> be of abstract type ‘ms_mascotresults_wrapper’
>
>
> ms_mascotresults.cpp:12: note: because the following virtual functions are
> pure within ‘ms_mascotresults_wrapper’:
>
>
> ...
> include/ms_mascotresults.hpp:334: note: virtual
> matrix_science::ms_peptide matrix_science::ms_mascotresults::getPeptide(int,
> int) const
>
>
> ms_mascotresults.cpp: In constructor
> ‘ms_mascotresults_wrapper::ms_mascotresults_wrapper()’:
>
>
> ms_mascotresults.cpp:12: error: no matching function for call to
> ‘matrix_science::ms_mascotresults::ms_mascotresults()’
>
>
> include/ms_mascotresults.hpp:284: note: candidates are:
> matrix_science::ms_mascotresults::ms_mascotresults(matrix_science::ms_mascotresfile&,
> unsigned int, double, int, const char*, const char*)
>
>
> include/ms_mascotresults.hpp:109: note:
> matrix_science::ms_mascotresults::ms_mascotresults(const
> matrix_science::ms_mascotresults&)
>
>
> ...
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp: In constructor
> ‘boost::python::objects::value_holder<Value>::value_holder(PyObject*) [with
> Value = ms_mascotresults_wrapper]’:
>
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:137: note:
> synthesized method ‘ms_mascotresults_wrapper::ms_mascotresults_wrapper()’
> first required here
>
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:137: error:
> cannot allocate an object of abstract type ‘ms_mascotresults_wrapper’
>
>
> ms_mascotresults.cpp:12: note: since type ‘ms_mascotresults_wrapper’ has
> pure virtual functions
>
>
>
>
>
> So I tried to change the constructor's signature by :
>
> class_<ms_mascotresults_wrapper, boost::noncopyable>("ms_mascotresults",
> init<ms_mascotresfile &, const unsigned int, double, int, const char
> *,const char *>())
>
>
>
>
>
>
> Giving these errors :
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:66: error:
> cannot declare field
> ‘boost::python::objects::value_holder<ms_mascotresults_wrapper>::m_held’ to
> be of abstract type ‘ms_mascotresults_wrapper’
>
>
> ms_mascotresults.cpp:12: note: because the following virtual functions are
> pure within ‘ms_mascotresults_wrapper’:
>
>
> include/ms_mascotresults.hpp:334: note: virtual
> matrix_science::ms_peptide matrix_science::ms_mascotresults::getPeptide(int,
> int) const
>
>
> ...
> ms_mascotresults.cpp:24: instantiated from here
>
>
> /usr/local/boost_1_42_0/boost/python/object/value_holder.hpp:137: error: no
> matching function for call to
> ‘ms_mascotresults_wrapper::ms_mascotresults_wrapper(matrix_science::ms_mascotresfile&,
> const unsigned int&, const double&, const int&, const char* const&, const
> char* const&)’
>
>
> ms_mascotresults.cpp:12: note: candidates are:
> ms_mascotresults_wrapper::ms_mascotresults_wrapper(const
> ms_mascotresults_wrapper&)
>
>
> ms_mascotresults.cpp:12: note:
> ms_mascotresults_wrapper::ms_mascotresults_wrapper()
>
>
>
>
>
> If I comment the virtual function getPeptide in the .hpp, it builds
> perfectly with this constructor :
>
> class_<ms_mascotresults>("ms_mascotresults", init<ms_mascotresfile
> &, const unsigned int, double, int, const char *,const char *>())
>
> This is the first time I use Boost.Python so I don't really know what
> happens inside, I don't understand this errors of candidates given the fact
> that there is only one constructor in the .hpp ...
>
>
> Thanks in advance for your help.
>
> Fallino
>
>
>
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>
--
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/
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