Random Access File med en strängstruktur

struct data
{
   string titel;
   string nummer;
   string film;
};

void skriv_data(vector< data > info)
{
   ofstream file( "film.dat", ios::trunc);
   for (int i=1; i<info.size(); i++)
   {
   	        file.write(reinterpret_cast<const char *>( &info[i] ), sizeof(data) );
    }
}

void las_data(vector< data >& info)
{
   data temp;
   ifstream file("film.dat", ios::in);
   file.clear();
   while ( file && !file.eof() )
   {
       file.read(reinterpret_cast< char *>( &temp ), sizeof(data) );
       info.push_back(temp);
   }
}