1 files changed, 49 insertions, 0 deletions
diff --git a/REORG.TODO/manual/examples/setjmp.c b/REORG.TODO/manual/examples/setjmp.c
new file mode 100644
index 0000000000..20b5064914
--- /dev/null
+++ b/REORG.TODO/manual/examples/setjmp.c
@@ -0,0 +1,49 @@
+/* Introduction to Non-Local Exits
+   Copyright (C) 1991-2017 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);
+}