On Fri, Oct 22, 2010 at 8:18 PM, Robert Valkenburg
wrote:
On Sat, Oct 23, 2010 at 2:41 PM, James C. Sutherland <
James.Sutherland@utah.edu> wrote:
Would you be willing to share (on-list or off-list) some of the code that
you wrote to make this happen? I haven't done much with mex and frankly
dread the thought. It would be great it I had an example to work from...
Sure, I'm away from my work for a few days but will send you an example
when i get back. I will send it off-list because its really more about
Matlab mex than boost serialisation.
Thanks.
FWIW, I just hacked together a really simple test case that seems to work.
I will post here for the benefit of anyone who may be interested in the
future.
The serialization library is *really* nice!
Three files:
- Test.h
- Test_mex.cpp - creates a function that can be called from Matlab that
un-serializes the object
- Test.cpp - creates the archive.
================= ==================
#ifndef Test_h
#define Test_h
#include <ostream>
#ifdef BINARY_IO
# include
# include
typedef boost::archive::text_oarchive OutputArchive;
typedef boost::archive::text_iarchive InputArchive;
#else
# include
# include
typedef boost::archive::binary_oarchive OutputArchive;
typedef boost::archive::binary_iarchive InputArchive;
#endif
struct Test
{
private:
friend std::ostream& operator<<(std::ostream& os, const Test& t );
friend class boost::serialization::access;
template<typename Archive>
void serialize( Archive& ar, const unsigned int version )
{
ar & i;
ar & d;
ar & *p;
}
public:
int i;
double d;
double* p;
Test()
{
p=new double;
}
Test( int _i, double _d )
{
i=_i;
d=_d;
p = new double;
*p=d*2;
}
~Test(){ delete p; }
};
std::ostream& operator<<( std::ostream& os, const Test& t )
{
os << t.i << ", " << t.d << ", " << *(t.p) << std::endl;
}
#endif Test_h
======================== ====================
======================= ===============
#include "mex.h"
#include "Test.h"
#include <iostream>
#include <fstream>
using namespace std;
void mexFunction( int nlhs, mxArray *plhs[],
int nrhs, const mxArray *prhs[] )
{
mexPrintf("Hello.\n");
Test t;
ifstream in( "serialize.out",ios_base::in );
InputArchive ia(in);
ia >> t;
mexPrintf("%i\n",t.i);
mexPrintf("%f\n",t.d);
mexPrintf("%f\n",*(t.p));
}
================= ================
=============== ==================
#include <iostream>
#include <fstream>
#include "Test.h"
using namespace std;
int main()
{
Test t(1,0.1);
{
std::ofstream ofs("serialize.out");
OutputArchive oa(ofs);
oa << t;
}
cout << "original : " << t;
{
ifstream ifs("serialize.out",ios_base::in);
InputArchive ia(ifs);
Test t2;
cout << "ready to import..." << flush;
ia >> t2;
cout << "done" << endl;
cout << "restored : " << t2;
}
}
================== ===================
