Re: [Boost-users] float serialization problem?

Have you tried whether serialization works for you if you just serialize the concrete class ConstCellValueStrategy? Matthias On 28 Jun 2008, at 14:08, michalurbanski wrote:

Hi,

I get an error "error: no matching function for call to ‘load_wrapper(boost::archive::xml_iarchive&, const float&, boost::serialization::is_wrapper<float>" for the code of classes (1) and (2). The compiler output is in (3).

The error comes from line "ar & BOOST_SERIALIZATION_NVP(constValue);"

If I comment the line "BOOST_CLASS_EXPORT(ConstCellValueStrategy)" the code compiles fine, but while running I get a "terminate called after throwing an instance of 'boost::archive::archive_exception' what(): unregistered class".

Any ideas what do I do wrong?

Regards, MU.

----------------------------------------------------------------------- Attachment 1, the derived class:

#ifndef CONSTCELLVALUESTRATEGY_HPP_ #define CONSTCELLVALUESTRATEGY_HPP_

#include #include #include #include #include

#include "CellValueStrategy.hpp"

class ConstCellValueStrategy : public CellValueStrategy { friend class boost::serialization::access;

template<class Archive> void serialize(Archive & ar, const unsigned int version) const { ar & BOOST_SERIALIZATION_NVP(constValue); }

float constValue;

inline ConstCellValueStrategy() {} public: ConstCellValueStrategy(const float &constValue); float computeValue(const float& x); };

BOOST_CLASS_EXPORT(ConstCellValueStrategy)

#endif /*CONSTCELLVALUESTRATEGY_HPP_*/

----------------------------------------------------------------------- Attachment 2, The base abstract class:

#ifndef CELLVALUESTRATEGY_HPP_ #define CELLVALUESTRATEGY_HPP_

#include <string>

#include

using namespace std;

class CellValueStrategy { public: virtual float computeValue(const float& x) = 0; virtual ~CellValueStrategy() {}; };

BOOST_IS_ABSTRACT(CellValueStrategy)

#endif /*CELLVALUESTRATEGY_HPP_*/

----------------------------------------------------------------------- Attachment 3, the compilet output:

Invoking: GCC C++ Compiler g++ -Isrc -I/usr/local/include/boost-1_35 -I../src -I../srcUTIL -I../ srcGUI -I../srcCNN -IsrcUTIL -IsrcGUI -IsrcCNN -O0 -msse -g3 -pg - Wall -pg -c -fmessage-length=0 -ansi -pedantic -DPNG_NO_MMX_CODE -I/ usr/include/gtkmm-2.4 -I/usr/lib/gtkmm-2.4/include -I/usr/include/ glibmm-2.4 -I/usr/lib/glibmm-2.4/include -I/usr/include/gdkmm-2.4 -I/ usr/lib/gdkmm-2.4/include -I/usr/include/pangomm-1.4 -I/usr/include/ atkmm-1.6 -I/usr/include/gtk-2.0 -I/usr/include/sigc++-2.0 -I/usr/ lib/sigc++-2.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/ include -I/usr/lib/gtk-2.0/include -I/usr/include/cairomm-1.0 -I/usr/ include/pango-1.0 -I/usr/include/cairo -I/usr/include/freetype2 -I/ usr/include/libpng12 -I/usr/include/atk-1.0 -MMD -MP -MF"srcUTIL/ ConstCellValueStrategy.d" -MT"srcUTIL/ConstCellValueStrategy.d" - o"srcUTIL/ConstCellValueStrategy.o" "../srcUTIL/ ConstCellValueStrategy.cpp" /usr/local/include/boost-1_35/boost/archive/detail/iserializer.hpp: In function ‘void boost::archive::load(Archive&, const T&) [with Archive = boost::archive::xml_iarchive, T = float]’: /usr/local/include/boost-1_35/boost/archive/detail/ common_iarchive.hpp:59: instantiated from ‘void boost::archive::detail::common_iarchive<Archive>::load_override(T&, int) [with T = const float, Archive = boost::archive::xml_iarchive]’ /usr/local/include/boost-1_35/boost/archive/basic_xml_iarchive.hpp: 81: instantiated from ‘void boost::archive::basic_xml_iarchive<Archive>::load_override(const boost::serialization::nvp<T>&, int) [with T = const float, Archive = boost::archive::xml_iarchive]’ /usr/local/include/boost-1_35/boost/archive/xml_iarchive.hpp:74: instantiated from ‘void boost::archive::xml_iarchive_impl<Archive>::load_override(T&, int) [with T = const boost::serialization::nvp<const float>, Archive = boost::archive::xml_iarchive]’ /usr/local/include/boost-1_35/boost/archive/detail/ interface_iarchive.hpp:63: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const boost::serialization::nvp<const float>, Archive = boost::archive::xml_iarchive]’ /usr/local/include/boost-1_35/boost/archive/detail/ interface_iarchive.hpp:70: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = const boost::serialization::nvp<const float>, Archive = boost::archive::xml_iarchive]’ ../srcUTIL/ConstCellValueStrategy.hpp:16: instantiated from ‘void ConstCellValueStrategy::serialize(Archive&, unsigned int) const [with Archive = boost::archive::xml_iarchive]’ /usr/local/include/boost-1_35/boost/serialization/access.hpp:109: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::xml_iarchive, T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/serialization.hpp: 81: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::xml_iarchive, T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/serialization.hpp: 140: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::xml_iarchive, T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/archive/detail/iserializer.hpp: 314: instantiated from ‘boost::archive::detail::pointer_iserializer::pointer_iserializer() [with Archive = boost::archive::xml_iarchive, T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/archive/detail/ dynamically_initialized.hpp:39: instantiated from ‘static T& boost::archive::detail::dynamically_initialized<T>::get_instance() [with T = boost ::archive::detail::pointer_iserializer]’ /usr/local/include/boost-1_35/boost/archive/detail/ dynamically_initialized.hpp:33: instantiated from ‘boost ::archive::detail::pointer_iserializer& boost ::archive ::detail ::dynamically_initialized < boost ::archive::detail::pointer_iserializer >::instance’ /usr/local/include/boost-1_35/boost/archive/detail/iserializer.hpp: 330: instantiated from ‘static const boost::archive::detail::pointer_iserializer& boost::archive::detail::pointer_iserializer::get_instance() [with Archive = boost::archive::xml_iarchive, T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/export.hpp:59: instantiated from ‘static const boost::archive::detail::basic_pointer_iserializer& boost::archive::detail::export_impl::enable_load(mpl_::true_) [with Archive = boost::archive::xml_iarchive, Serializable = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/export.hpp:138: instantiated from ‘static void boost::archive::detail::ptr_serialization_support::instantiate() [with Archive = boost::archive::xml_iarchive, Serializable = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/export.hpp:125: instantiated from ‘boost ::archive ::detail::ptr_serialization_support’ /usr/local/include/boost-1_35/boost/archive/detail/ register_archive.hpp:21: instantiated from ‘boost ::archive ::detail::_ptr_serialization_support’ /usr/local/include/boost-1_35/boost/serialization/export.hpp:101: instantiated from ‘boost::archive::detail::guid_initializer<T>::guid_initializer(const char*) [with T = ConstCellValueStrategy]’ /usr/local/include/boost-1_35/boost/serialization/export.hpp:84: instantiated from ‘static const boost::archive::detail::guid_initializer<T>& boost::archive::detail::guid_initializer<T>::get_instance(const char*) [with T = ConstCellValueStrategy]’ ../srcUTIL/ConstCellValueStrategy.hpp:27: instantiated from here /usr/local/include/boost-1_35/boost/archive/detail/iserializer.hpp: 589: error: no matching function for call to ‘load_wrapper(boost::archive::xml_iarchive&, const float&, boost::serialization::is_wrapper<float>)’ make: *** [srcUTIL/ConstCellValueStrategy.o] Error 1 make: *** Waiting for unfinished jobs.... 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