Re: [Boost-users] [serialization] Difficulty getting serialization towork.

15 Jul 2006

      The change I've suggested below should do it.  This is explained
in the "rationale" section of the manual.

Robert Ramey

Dieter Buys wrote:
...
...
Hi,
I am experiencing difficulties in getting the Boost serialization
library to work. There seems to be an error related to object
tracking,
as I am getting BOOST_STATIC_ASSERTION_FAILURE<x>. I am trying to
figure it out using the attached test code. The documentation claims
I should
be putting a BOOST_SERIALIZATION_TRACKING() macro in my file
(presumably directly after my class definition). I did a full text
search over the entire source of the library and nowhere did this
preprocessor macro exist. There is a BOOST_CLASS_TRACKING() macro,
which I tried putting in my source with tracking_never. That seems
to have made no appreciable difference.
I have absolutely no idea what I am supposed to do. :(
Any help would be appreciated.
Thanks,
~ Dieter Buys
...
#include <fstream>
#include 
#include 
#include 
#include 
#include 
class gps_position
{
private:
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive & ar, const unsigned int version)
{
ar & degrees;
ar & minutes;
ar & seconds;
}
int degrees;
int minutes;
float seconds;
public:
gps_position() {};
gps_position(int d, int m, float s) : degrees(d), minutes(m),
seconds(s) {} };
// BOOST_CLASS_TRACKING(gps_position, track_never)
int main(void)
{
std::ofstream ofs("serial.txt");
gps_position *g = new gps_position(35, 59, 24.567f);
// const gps_position g(35, 59, 24.567f);
const gps_position * const g = new gps_position(35, 59, 24.567f);
...
...
{
boost::archive::text_oarchive oa(ofs);
oa << g;
}
delete g;
gps_position *newg;
// gps_position newg;
{
std::ifstream ifs("serial.txt", std::ios::binary);
boost::archive::text_iarchive ia(ifs);
ia >> newg;
}
delete newg;
return 0;
}
...
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