1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2009, 2010, 2011 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 18volatile int global; 19 20int 21main (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