Re: [Boost-users] question about boost serialization library

From: Fei Liu (feiliu_at_[hidden])
Date: 2007-07-06 12:48:55

It couldn't serialize the object, it aborted with an error:

terminate called after throwing an instance of 
'boost::archive::xml_archive_exception'
  what():  unrecognized XML syntax
Aborted

Hughes, James wrote:
> I'm wondering whether it may be something to do with the NVP
> serilisation of *this - does the serialisation lib know how to name
> *this to correctly form a NVP? What did the original XML say?
>
> void save(std::ostream & os)
> {
> 	assert(os.good());
> 	boost::archive::xml_oarchive oa(os);
> 	oa << BOOST_SERIALIZATION_NVP(*this);
> } 
>
>
> James
>
>   
>> -----Original Message-----
>> From: boost-users-bounces_at_[hidden] 
>> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Fei Liu
>> Sent: 06 July 2007 17:16
>> To: boost-users_at_[hidden]
>> Subject: Re: [Boost-users] question about boost serialization library
>>
>> Ok I found out how to make it to work but I don't understand the 
>> rationale, basically, the serialization and deserialization functions 
>> cannot be member
>> functions, they have to be free functions like these:
>>
>> void save_map(const demo &s, std::ostringstream & os){
>>     // make an archive
>>     assert(os.good());
>>     boost::archive::xml_oarchive oa(os);
>>     oa << BOOST_SERIALIZATION_NVP(s);
>> }
>>
>> void
>> restore_map(demo &s, std::istringstream & is)
>> {
>>     // open the archive
>>     assert(is.good());
>>     boost::archive::xml_iarchive ia(is);
>>
>>     // restore the schedule from the archive
>>     ia >> BOOST_SERIALIZATION_NVP(s);
>> }
>>     
>
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