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-rw-r--r--REORG.TODO/manual/examples/execinfo.c54
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diff --git a/REORG.TODO/manual/examples/execinfo.c b/REORG.TODO/manual/examples/execinfo.c
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+++ b/REORG.TODO/manual/examples/execinfo.c
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+/* Obtain a backtrace and print it.
+   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 <execinfo.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+/* Obtain a backtrace and print it to @code{stdout}. */
+void
+print_trace (void)
+{
+  void *array[10];
+  size_t size;
+  char **strings;
+  size_t i;
+
+  size = backtrace (array, 10);
+  strings = backtrace_symbols (array, size);
+
+  printf ("Obtained %zd stack frames.\n", size);
+
+  for (i = 0; i < size; i++)
+     printf ("%s\n", strings[i]);
+
+  free (strings);
+}
+
+/* A dummy function to make the backtrace more interesting. */
+void
+dummy_function (void)
+{
+  print_trace ();
+}
+
+int
+main (void)
+{
+  dummy_function ();
+  return 0;
+}