Funkcija udalenija tekushhej zapisi void del int Tbase clear fopen FIL

/*Funkcija udalenija tekushhej zapisi*/
void del(int i)
{ Tbase b;
  clear();
  f=fopen(FILENAME,"r+b");
  if (i+def!=n2-1)
  {
  fseek(f,(n2-1)*sizeof(Tbase),0);
  fread(&b,sizeof(Tbase),1,f);
  fseek(f,(base[i].offs),0);
  b.offs=ftell(f);
  fwrite(&b,sizeof(b),1,f);
  }
  fflush(f);
  chsize(fileno(f),sizeof(Tbase)*(n2-1));
  fclose(f);
  clean();
  load_cars();
  view_cars();
  n2--;