source: trunk/j/src/org/armedbear/lisp/upgraded-complex-part-type.lisp @ 9266

Last change on this file since 9266 was 8761, checked in by piso, 16 years ago

Work in progress.

File size: 1.2 KB
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1;;; upgraded-complex-part-type.lisp
2;;;
3;;; Copyright (C) 2004-2005 Peter Graves
4;;; $Id: upgraded-complex-part-type.lisp,v 1.5 2005-03-13 01:48:21 piso Exp $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20(defun upgraded-complex-part-type (typespec &optional environment)
21  (declare (ignore environment))
22  (if (subtypep typespec 'REAL)
23      typespec
24      (error 'simple-error
25             :format-control "The type ~S is not a subtype of ~S."
26             :format-arguments (list typespec 'REAL))))
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