1 /* Copyright (C) 2001-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library 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 GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <stdio.h>
19 #include <stdlib.h>
20
21 int global;
22 int *ip;
23
24 extern void dummy (void);
25 extern void foo (void *p);
26
27 void
dummy(void)28 dummy (void)
29 {
30 printf ("This is %s\n", __FUNCTION__);
31 *ip = global = 1;
32 }
33
34
35 void
foo(void * p)36 foo (void *p)
37 {
38 printf ("This is %s\n", __FUNCTION__);
39 atexit (dummy);
40 ip = p;
41 }
42