#include <windows.h>
#include <stdio.h>
#include <time.h>
#include <errno.h>

int main()
{
  FILE *fp;
  int ret_val1, ret_val2;

  fp = fopen("X:/0000/hans/ftest_file.txt", "w");

  do
  {
    time_t t = time(NULL);
    struct tm tm = *localtime(&t);
    printf("%2d %02d:%02d:%02d\n", tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
    ret_val1 = fprintf(fp, "%2d %02d:%02d:%02d\n", tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
    ret_val2 = fflush(fp);
    printf("fprintf ret_val = %d fflush ret_val = %d errno = %d\n", ret_val1, ret_val2, errno);
    Sleep(60000);
  } while(1);
  
  close(fp);

  return(0);
}