--- /dev/null
+/* PSPP - computes sample statistics.
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Written by John Darrington <john@darrington.wattle.id.au>
+
+ 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, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include <data/case.h>
+#include <data/procedure.h>
+#include <data/transformations.h>
+#include <language/command.h>
+#include <language/lexer/lexer.h>
+
+static int trns_fail (void *x, struct ccase *c, casenum_t n);
+
+
+\f
+/* A transformation which is guaranteed to fail. */
+
+static int
+trns_fail (void *x UNUSED, struct ccase *c UNUSED,
+ casenum_t n UNUSED)
+{
+ return TRNS_ERROR;
+}
+
+
+int
+cmd_debug_xform_fail (void)
+{
+
+ add_transformation (trns_fail, NULL, NULL);
+
+ return lex_end_of_command ();
+}