gdb/testsuite/gdb.mi/mi-var-list-children-invalid-grandchild.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2015-2019 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 struct inner
  19 {
  20   int a;
  21 };
  22
  23 struct outer
  24 {
  25   struct inner *inner;
  26 };
  27
  28 int main (void)
  29 {
  30   struct inner inner;
  31   struct outer outer;
  32   struct outer *p_outer;
  33
  34   inner.a = 42;
  35   outer.inner = &inner;
  36
  37   /* We force p_outer to an invalid value, but this also happens naturally
  38    * when a variable has not been initialized. */
  39
  40   p_outer = 0;
  41   /* p_outer set to invalid value */
  42   p_outer = &outer;
  43   /* p_outer set to valid value */
  44
  45   return 0;
  46 }