1 /*
2 Copyright (c) 2009 Sun Microsystems, Inc.
3 Use is subject to license terms.
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; version 2 of the License.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
17
18 /* Check stack direction (0-down, 1-up) */
f(int * a)19 int f(int *a)
20 {
21 int b;
22 return(&b > a)?1:0;
23 }
24 /*
25 Prevent compiler optimizations by calling function
26 through pointer.
27 */
28 volatile int (*ptr_f)(int *) = f;
main()29 int main()
30 {
31 int a;
32 return ptr_f(&a);
33 }
34