1  int var = 123;
       2  int foo = 121;
       3  
       4  int var2[2]= { 123, 456 };
       5  
       6  #include <stdio.h>
       7  
       8  void
       9  print_var (void)
      10  {
      11    printf ("DLL sees var = %d\n", var);
      12  }
      13  
      14  void
      15  print_foo (void)
      16  {
      17    printf ("DLL sees foo = %d\n", foo);
      18  }
      19  
      20  void (* func_ptr)(void) = print_foo;