#include <stdio.h>
#include <stdlib.h>

typedef struct st_stmt_fetch
{
  char is_open;
  unsigned long *out_data_length;
  char **out_data;
  unsigned column_count;
  unsigned row_count;
} Stmt_fetch;

static int stmt_fetch_fetch_row(Stmt_fetch *fetch)
{
  unsigned i;

  if (fetch->row_count == 0)
  {
    fetch->row_count= 100;
    printf("Program will crash in this for loop\n");
    for (i= 0; i < fetch->column_count; ++i)
    {
      printf("Never reached, unless the line below is uncommented\n");
      fetch->out_data[i][fetch->out_data_length[i]]= '\0';
      /* Not even the below statement works */
      //fetch->out_data[i][0]= 0;
    }
  }
  else
    fetch->is_open= 0;

  return 1;
}

int main(int argc, char **argv){
  unsigned query_count= 2;
  unsigned open_statements= query_count;
  Stmt_fetch *fetch_array= (Stmt_fetch*) calloc(sizeof(Stmt_fetch),
                                                query_count);
  Stmt_fetch *fetch;

  for (fetch= fetch_array; fetch < fetch_array + query_count; ++fetch)
  {
    fetch->column_count= 2;
    fetch->out_data= (char**) calloc(fetch->column_count,
                                     sizeof(char*));
    fetch->out_data_length= (unsigned long*) calloc(fetch->column_count,
                                                    sizeof(unsigned long));
    fetch->row_count= 0;
    fetch->is_open= 1;
  }

  while (open_statements)
  {
    for (fetch= fetch_array; fetch < fetch_array + query_count; fetch++)
    {
      if (fetch->is_open && stmt_fetch_fetch_row(fetch))
      {
        open_statements--;
      }
    }
  }

  return 0;
}