1 /* This testcase is part of GDB, the GNU debugger.
2
3 Copyright 2009-2013 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 volatile int global;
19
20 int
main(void)21 main (void)
22 {
23 int foo = -1;
24
25 while (1)
26 {
27 foo = global; /* read line */
28
29 global = foo + 1; /* write line */
30 }
31
32 return 0;
33 }
34