mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* Introduction to Non-Local Exits
|
|
Copyright (C) 1991-2015 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <setjmp.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
jmp_buf main_loop;
|
|
|
|
void
|
|
abort_to_main_loop (int status)
|
|
{
|
|
longjmp (main_loop, status);
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
while (1)
|
|
if (setjmp (main_loop))
|
|
puts ("Back at main loop....");
|
|
else
|
|
do_command ();
|
|
}
|
|
|
|
|
|
void
|
|
do_command (void)
|
|
{
|
|
char buffer[128];
|
|
if (fgets (buffer, 128, stdin) == NULL)
|
|
abort_to_main_loop (-1);
|
|
else
|
|
exit (EXIT_SUCCESS);
|
|
}
|