source: trunk/j/src/org/armedbear/lisp/upgraded-complex-part-type.lisp @ 8492

Last change on this file since 8492 was 8492, checked in by piso, 17 years ago

(upgraded-complex-part-type nil) => NIL

File size: 1.2 KB
Line 
1;;; upgraded-complex-part-type.lisp
2;;;
3;;; Copyright (C) 2004-2005 Peter Graves
4;;; $Id: upgraded-complex-part-type.lisp,v 1.3 2005-02-06 18:28:28 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;;; Adapted from SBCL.
21
22(defun upgraded-complex-part-type (typespec &optional environment)
23  (declare (ignore environment))
24  (cond ((null typespec)
25         nil)
26        ((subtypep typespec 'float)
27   'float)
28  ((subtypep typespec 'rational)
29   'rational)
30        ((subtypep typespec 'real)
31         'real)
32  (t
33   t)))
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