1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2015-2023 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 } 47