--- /dev/null
+#ifndef DATE_TIME_SPECIAL_DEFS_HPP__
+#define DATE_TIME_SPECIAL_DEFS_HPP__
+
+/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
+ * Use, modification and distribution is subject to the
+ * Boost Software License, Version 1.0. (See accompanying
+ * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+ * Author: Jeff Garland
+ * $Date$
+ */
+
+namespace boost {
+namespace date_time {
+
+ enum special_values {not_a_date_time,
+ neg_infin, pos_infin,
+ min_date_time, max_date_time,
+ not_special, NumSpecialValues};
+
+
+} } //namespace date_time
+
+
+#endif
+