Re: [Boost-users] easy serialization question

From: Mark Wyszomierski (markww_at_[hidden])
Date: 2007-02-09 11:04:56

Hmm ok I split up the save() and load() functions so I can just
serialize the individual members of these 3rd party classes. That
works ok. The save() method is defined like:

    voidd save(Archive &ar, const unsigned int version) const
    {
        ar & m_3rdPartyClass.m_SomeInteger;
        ...
    }

One of the data types though is MFC's CString - which is just like
std:string, just a wrapper around a character array. The only way to
get the contents of a CString as a char array is a function called
GetBuffer() which returns a non-const char pointer to the internal
array. My compiler does not seem to like this, as I guess the save()
function is defined as const? Is this right, and if so, is there any
way I can get around this one?

    ar & m_3rdPartyClass.m_SomeCString.GetBuffer(); // returns non
const char* !!

Thanks,
Mark

On 2/9/07, David Klein <dave_chp_at_[hidden]> wrote:
> Mark Wyszomierski wrote:
> > Hi,
> > I'm using the boost serialization methods, they're great. I'm using
> > some 3rd party classes that I don't have access to, so I can't add a
> > serialize() member function to them. It's something like:
> >
> > class CMyClass {
> >     int m_nWhatever;
> >     CSomeClass m_sc; // I am just using this from someone else's library....
> >
> >     void serialize(Archive &ar, const unsigned int version)
> >     {
> >         ar & version;
> >         ar & m_nWhatever;
> >         ar & m_sc; // fails!!!
> >     }
> > }
> >
> > how can I get around this?
> >
> > Thanks,
> > Mark
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> >
> >
> Hi Mark,
>
> you don't necessarily need a member function. see f.ex:
>
> http://boost.org/libs/serialization/doc/tutorial.html#nonintrusiveversion
>
> --
> HTH dave
>
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