Re: [Boost-users] Obscure error while trying to use Boost XML Serialization (boost::archive::xml_iarchive)

12 Apr 2006

      Never mind.  Thanks all -- I fixed it myself.  For the archives, in trying
to print each level in my hierarchy I had a helper function like this;

template<typename T>
struct printeachlevel
{
    printeachlevel(T& ar) : m_ar(ar) { }
    template<typename X>
    void operator()(X*& level)
    {
        m_ar & boost::serialization::make_nvp(level->m_myNodeName.c_str(),
level);
    }
    T& m_ar;
};

The problem was the function operator took a const X*& level -- so when the
typename X was class Stock, it turned it into a const Stock*& and that
probably made the boost serialization library mad at me.

anyway, teaches me to first look at the compiler error carefully before
posting in archives :-)

I hope I don't run into another one the moment I hit send ;-)

On 4/12/06, Dilip <misc.usage@gmail.com> wrote:
...
Hello all
I am trying to use Boost Serialization library to de-serialize a complex
object hierarchy from XML to its class representation.
The class hierarchy gets serialized into XML just fine.  But while trying
to do the reverse, that is read from XML and pump it into my class, I run
into the following compiler error that is driving me nuts.  Can someone help
please?  FYI if its relevant I have a std::list<Stock*> datatype in one of
the classes.
The error dump is slightly big so I apologize in advance.  The compiler is
VC 7.1 on windows XP.
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(487) :
error C2440: 'reinterpret_cast' : cannot convert from 'const Stock **__w64
' to 'void ** '
        Conversion loses qualifiers
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(484) :
while compiling class-template member function 'void
boost::archive::detail::load_pointer_type<Archive,Tptr>::invoke(Archive
&,Tptr & )'
        with
        [
            Archive=boost::archive::xml_iarchive,
            Tptr=const Stock *
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(572) :
see reference to class template instantiation
'boost::archive::detail::load_pointer_type<Archive,Tptr>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            Tptr=const Stock *
        ]
C:\Boost\include\boost-1_33_1\boost\archive\basic_xml_iarchive.hpp(80) : see
reference to function template instantiation 'void
boost::archive::load<Archive,T>(Archive &,T & )' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const Stock *
        ]
        C:\Boost\include\boost-1_33_1\boost\archive\xml_iarchive.hpp(74) :
see reference to function template instantiation 'void
boost::archive::basic_xml_iarchive<Archive>::load_override<const X*>(const
boost::serialization::nvp<T> &,int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            X=Stock,
            T=const Stock *
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(76)
: see reference to function template instantiation 'void
boost::archive::xml_iarchive_impl<Archive>::load_override<T>(T &,int)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<const Stock *>
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(83)
: see reference to function template instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator >><T>(T &)'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<const Stock *>
        ]
        MarketData.cpp(118) : see reference to function template
instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator &<const
boost::serialization::nvp<T>>(const boost::serialization::nvp<T> &)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const Stock *
        ]
        C:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\algorithm(21) : see reference to function template
instantiation 'void printeachlevel<T>::operator ()<Stock>(const X *& )'
being compiled
        with
        [
            T=boost::archive::xml_iarchive,
            X=Stock
        ]
        MarketData.cpp(131) : see reference to function template
instantiation '_Fn1
std::for_each<std::list<_Ty>::iterator,printeachlevel<T>>(_InIt,_InIt,_Fn1)'
being compiled
        with
        [
            _Fn1=printeachlevel<boost::archive::xml_iarchive>,
            _Ty=Stock *,
            T=boost::archive::xml_iarchive,
            _InIt=std::list<Stock *>::iterator
        ]
        C:\Boost\include\boost-1_33_1\boost\serialization\access.hpp(109)
: see reference to function template instantiation 'void
Stocks::serialize<Archive>(Archive &,const unsigned int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(81) :
see reference to function template instantiation 'void
boost::serialization::access::serialize<Archive,T>(Archive &,T &,const
unsigned int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(140) :
see reference to function template instantiation 'void
boost::serialization::serialize<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(164) :
see reference to function template instantiation 'void
boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\extended_type_info_typeid.hpp(74)
: while compiling class-template member function 'void
boost::archive::detail::iserializer<Archive,T>::load_object_data(boost::archive::detail::basic_iarchive
&,void *,const unsigned int) const'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(375) :
see reference to class template instantiation
'boost::archive::detail::iserializer<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(369) :
while compiling class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard::invoke(Archive
&,T &)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(425) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
        C:\Boost\includ
e\boost-1_33_1\boost\archive\detail\iserializer.hpp(418) : while compiling
class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::invoke(Archive &,T
&)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(572) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\basic_xml_iarchive.hpp(80) : see
reference to function template instantiation 'void
boost::archive::load<Archive,T>(Archive &,T &)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
        C:\Boost\include\boost-1_33_1\boost\archive\xml_iarchive.hpp(74) :
see reference to function template instantiation 'void
boost::archive::basic_xml_iarchive<Archive>::load_override<Stocks>(const
boost::serialization::nvp<T> &,int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(76)
: see reference to function template instantiation 'void
boost::archive::xml_iarchive_impl<Archive>::load_override<T>(T &,int)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<Stocks>
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(83)
: see reference to function template instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator >><T>(T &)'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<Stocks>
        ]
        MarketData.cpp(179) : see reference
to function template instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator &<const
boost::serialization::nvp<T>>(const boost::serialization::nvp<T> &)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Stocks
        ]
        C:\Boost\include\boost-1_33_1\boost\serialization\access.hpp(109)
: see reference to function template instantiation 'void
Securities::serialize<Archive>(Archive &,const unsigned int)' being compiled
with
        [
            Archive=boost::archive::xml_iarchive
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(81) :
see reference to function template instantiation 'void
boost::serialization::access::serialize<Archive,T>(Archive &,T &,const
unsigned int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(140) :
see reference to function template instantiation 'void
boost::serialization::serialize<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(164) :
see reference to function template instantiation 'void
boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\extended_type_info_typeid.hpp(74)
: while compiling class-template member function 'void
boost::archive::detail::iserializer<Archive,T>::load_object_data(boost::archive::detail::basic_iarchive
&,void *,const unsigned int) const'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(375) :
see reference to class template instantiation
'boost::archive::detail::iserializer<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(369) :
while compiling class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard::invoke(Archive
&,T &)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(425) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(418) :
while compiling class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::invoke(Archive &,T
&)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(572) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\basic_xml_iarchive.hpp(80) : see
reference to function template instantiation 'void
boost::archive::load<Archive,T>(Archive &,T &)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
        C:\Boost\include\boost-1_33
_1\boost\archive\xml_iarchive.hpp(74) : see reference to function template
instantiation 'void
boost::archive::basic_xml_iarchive<Archive>::load_override<Securities>(const
boost::serialization::nvp<T> &,int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(76)
: see reference to function template instantiation 'void
boost::archive::xml_iarchive_impl<Archive>::load_override<T>(T &,int)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<Securities>
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(83)
: see reference to function template instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator >><T>(T &)'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<Securities>
        ]
        MarketData.cpp(209) : see reference to function template
instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator &<const
boost::serialization::nvp<T>>(const boost::serialization::nvp<T> &)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Securities
        ]
        C:\Boost\include\boost-1_33_1\boost\serialization\access.hpp(109)
: see reference to function template instantiation 'void
MarketData::serialize<Archive>(Archive &,const unsigned int)' being compiled
with
        [
            Archive=boost::archive::xml_iarchive
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(81) :
see reference to function template instantiation 'void
boost::serialization::access::serialize<Archive,T>(Archive &,T &,const
unsigned int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=Mar
ketData
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\serialization.hpp(140) :
see reference to function template instantiation 'void
boost::serialization::serialize<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(164) :
see reference to function template instantiation 'void
boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const unsigned
int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\serialization\extended_type_info_typeid.hpp(74)
: while compiling class-template member function 'void
boost::archive::detail::iserializer<Archive,T>::load_object_data(boost::archive::detail::basic_iarchive
&,void *,const unsigned int) const'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(375) :
see reference to class template instantiation
'boost::archive::detail::iserializer<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(369) :
while compiling class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard::invoke(Archive
&,T &)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(425) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard'
being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(418) :
while compiling class-template member function 'void
boost::archive::detail::load_non_pointer_type<Archive,T>::invoke(Archive &,T
&)'
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(572) :
see reference to class template instantiation
'boost::archive::detail::load_non_pointer_type<Archive,T>' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\basic_xml_iarchive.hpp(80) : see
reference to function template instantiation 'void
boost::archive::load<Archive,T>(Archive &,T &)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
        C:\Boost\include\boost-1_33_1\boost\archive\xml_iarchive.hpp(74) :
see reference to function template instantiation 'void
boost::archive::basic_xml_iarchive<Archive>::load_override<MarketData>(const
boost::serialization::nvp<T> &,int)' being compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\interface_iarchive.hpp(76)
: see reference to function template instantiation 'void
boost::archive::xml_iarchive_impl<Archive>::load_override<T>(T &,int)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=const boost::serialization::nvp<MarketData>
        ]
        MarketData.cpp(223) : see reference to function template
instantiation 'Archive
&boost::archive::detail::interface_iarchive<Archive>::operator >><const
boost::serialization::nvp<T>>(const boost::serialization::nvp<T> &)' being
compiled
        with
        [
            Archive=boost::archive::xml_iarchive,
            T=MarketData
        ]
C:\Boost\include\boost-1_33_1\boost\archive\detail\iserializer.hpp(493) :
error C2664: 'const T
*boost::archive::detail::load_pointer_type<Archive,Tptr>::pointer_tweak<const
X>(const boost::serialization::extended_type_info &,void *,const T &)' :
cannot convert parameter 2 from 'const Stock *' to 'void *'
        with
        [
            T=Stock,
            Archive=boost::archive::xml_iarchive,
            Tptr=const Stock *,
            X=Stock
        ]
        Conversion loses qualifiers