hello,
i have an int pointer, which pointer to the starting
address of an array. currently, i need to serialize
the array elements one by one, at the same time
serialize the size of the array too.
i try to serialize the dynamic allocated array, just
like what i did on vector, but fail.
vector<int> v;
ar & vector; /* no problem. */
int *i = new int[10];
ar & i; /* compile error. */
i was understand that the serialization library had no
idea on the size of dynamic allocated array either
during run-time or compiled time.
i just want to know whether there is any better way to
serialize on the above mentioned data?
here is the error i get from vc++ 2003.
C:\Boost\include\boost-1_33_1\boost\serialization\access.hpp(109):
error C2228: left of '.serialize' must have
class/struct/union type
the below are my full source code. thanks!
#include <fstream>
// include headers that implement a archive in simple
text format
#include
#include
/////////////////////////////////////////////////////////////
// gps coordinate
//
// illustrates serialization for a simple type
//
class gps_position
{
private:
friend class boost::serialization::access;
// When the class Archive corresponds to an output
archive, the
// & operator is defined similar to <<. Likewise,
when the class Archive
// is a type of input archive the & operator is
defined similar to >>.
template<class Archive>
void serialize(Archive & ar, const unsigned int
version)
{
ar & degrees;
ar & minutes;
ar & seconds;
ar & data;
}
int degrees;
int minutes;
float seconds;
int* data;
public:
gps_position(){};
gps_position(int d, int m, float s) :
degrees(d), minutes(m), seconds(s)
{data = new int[5];}
};
int main() {
// create and open a character archive for output
std::ofstream ofs("filename");
// create class instance
const gps_position g(35, 59, 24.567f);
// save data to archive
{
boost::archive::text_oarchive oa(ofs);
// write class instance to archive
oa << g;
// archive and stream closed when destructors are
called
}
// ... some time later restore the class instance
to its orginal state
gps_position newg;
{
// create and open an archive for input
std::ifstream ifs("filename",
std::ios::binary);
boost::archive::text_iarchive ia(ifs);
// read class state from archive
ia >> newg;
// archive and stream closed when destructors
are called
}
return 0;
}
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