Re: class initialization problem, please help

hi, there
Here is a simplified piece of code of my program, it compiles and runs
fine. However, valgrind shows it has uninitialized problem. What I am
doing wrong?

#ifndef DATA2_H
#define DATA2_H

class Data2{
public:
        int regionId;
        bool isLandscape;
        double parameters[16];
  Data2();

  ~Data2();};

#endif

#include "data2.h"
#include <iomanip>
#include <fstream>

using namespace std;

Data2::Data2(): regionId(-1), isLandscape(false)
{
        for (int i = 0; i < 16; i++)
                parameters[i] = 1;

}

Data2::~Data2()
{

}

int main(){
        char buffer[512] = "abc.bin";
        ofstream myfile;
        Data2 *dataArray = new Data2[10];

        myfile.open (buffer, ios::out | ios::binary);
        int *num = new int(10);
        myfile.write((char*)num, sizeof(int));
        myfile.write ((char*)dataArray, sizeof (Data2) * *num);
        myfile.close();
        delete num;
        delete [] dataArray;
        return 1;

}