boost serialization, deserialization of raw C arrays

I'm trying to serialize and deserialize raw C pointers and their data, with the example below. It seems to serialize just fine, but I am unsure how to make it deserialize - it just crashes with a memory access violation exception when I deserialize it. I suppose it is because it dosn't know how to deserialize it, but where do I specify that?

Using a vector is not an option, in very large primitive data amounts it is painfully slow

#include <stdint.h>
#include <string>
#include <iostream>
#include <fstream>
#pragma warning (push) 
#pragma warning( disable : 4244 ) 
#include <boost/serialization/serialization.hpp>
#include <boost/serialization/vector.hpp>
#include <boost/serialization/string.hpp>
#include <boost/serialization/array.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#pragma warning (pop) 

struct Monkey
{
    uint32_t num;
    float* arr;

};


namespace boost
{
    namespace serialization
    {
        template<class Archive>
        void serialize(Archive & ar, Monkey& m, const unsigned int version)
        {
            ar & m.num;
            ar & make_array<float>(m.arr, m.num);
        }
    }
}


int _tmain(int argc, _TCHAR* argv[])
{
    const char* name = "monkey.txt";

    {
        Monkey m;
        m.num = 10;
        m.arr = new float[m.num];
        for (uint32_t index = 0; index < m.num; index++)
            m.arr[index] = (float)index;

        std::ofstream outStream(name, std::ios::out | std::ios::binary | std::ios::trunc);
        boost::archive::binary_oarchive oar(outStream);
        oar << (m);
    }

    Monkey m;
    std::ifstream inStream(name, std::ios::in | std::ios::binary);     
    boost::archive::binary_iarchive iar(inStream);
    iar >> (m);

    return 0;
}