1 files changed, 72 insertions, 0 deletions
diff --git a/REORG.TODO/manual/examples/testopt.c b/REORG.TODO/manual/examples/testopt.c
new file mode 100644
index 0000000000..1cb53352eb
--- /dev/null
+++ b/REORG.TODO/manual/examples/testopt.c
@@ -0,0 +1,72 @@
+/* Example of Parsing Arguments with getopt.
+   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/>.
+*/
+
+/*@group*/
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int
+main (int argc, char **argv)
+{
+  int aflag = 0;
+  int bflag = 0;
+  char *cvalue = NULL;
+  int index;
+  int c;
+
+  opterr = 0;
+/*@end group*/
+
+/*@group*/
+  while ((c = getopt (argc, argv, "abc:")) != -1)
+    switch (c)
+      {
+      case 'a':
+        aflag = 1;
+        break;
+      case 'b':
+        bflag = 1;
+        break;
+      case 'c':
+        cvalue = optarg;
+        break;
+      case '?':
+        if (optopt == 'c')
+          fprintf (stderr, "Option -%c requires an argument.\n", optopt);
+        else if (isprint (optopt))
+          fprintf (stderr, "Unknown option `-%c'.\n", optopt);
+        else
+          fprintf (stderr,
+                   "Unknown option character `\\x%x'.\n",
+                   optopt);
+        return 1;
+      default:
+        abort ();
+      }
+/*@end group*/
+
+/*@group*/
+  printf ("aflag = %d, bflag = %d, cvalue = %s\n",
+	  aflag, bflag, cvalue);
+
+  for (index = optind; index < argc; index++)
+    printf ("Non-option argument %s\n", argv[index]);
+  return 0;
+}
+/*@end group*/