gdb/testsuite/gdb.base/opaque0.c

   1 /*  Note that struct foo is opaque (never defined) in this file.  This
   2     is allowed by C since this file does not reference any members of
   3     the structure.  The debugger needs to be able to associate this
   4     opaque structure definition with the full definition in another
   5     file.
   6 */
   7
   8 struct foo *foop;
   9 extern struct foo *getfoo ();
  10 extern void putfoo (struct foo *foop);
  11
  12 int main ()
  13 {
  14     foop = getfoo ();
  15     putfoo (foop);
  16     return 0;
  17 }