isinf.c revision 1.4 1 1.4 kleink /* $NetBSD: isinf.c,v 1.4 1998/10/13 14:43:38 kleink Exp $ */
2 1.3 christos
3 1.1 ragge /*-
4 1.1 ragge * Copyright (c) 1991, 1993
5 1.1 ragge * The Regents of the University of California. All rights reserved.
6 1.1 ragge *
7 1.1 ragge * Redistribution and use in source and binary forms, with or without
8 1.1 ragge * modification, are permitted provided that the following conditions
9 1.1 ragge * are met:
10 1.1 ragge * 1. Redistributions of source code must retain the above copyright
11 1.1 ragge * notice, this list of conditions and the following disclaimer.
12 1.1 ragge * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 ragge * notice, this list of conditions and the following disclaimer in the
14 1.1 ragge * documentation and/or other materials provided with the distribution.
15 1.1 ragge * 3. All advertising materials mentioning features or use of this software
16 1.1 ragge * must display the following acknowledgement:
17 1.1 ragge * This product includes software developed by the University of
18 1.1 ragge * California, Berkeley and its contributors.
19 1.1 ragge * 4. Neither the name of the University nor the names of its contributors
20 1.1 ragge * may be used to endorse or promote products derived from this software
21 1.1 ragge * without specific prior written permission.
22 1.1 ragge *
23 1.1 ragge * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 1.1 ragge * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 1.1 ragge * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 1.1 ragge * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 1.1 ragge * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 1.1 ragge * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 1.1 ragge * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 1.1 ragge * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 1.1 ragge * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 1.1 ragge * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 1.1 ragge * SUCH DAMAGE.
34 1.1 ragge */
35 1.1 ragge
36 1.3 christos #include <sys/cdefs.h>
37 1.1 ragge #if defined(LIBC_SCCS) && !defined(lint)
38 1.3 christos #if 0
39 1.3 christos static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93";
40 1.3 christos #else
41 1.4 kleink __RCSID("$NetBSD: isinf.c,v 1.4 1998/10/13 14:43:38 kleink Exp $");
42 1.3 christos #endif
43 1.1 ragge #endif /* LIBC_SCCS and not lint */
44 1.3 christos
45 1.4 kleink #include "namespace.h"
46 1.3 christos #include <math.h>
47 1.4 kleink
48 1.4 kleink #ifdef __weak_alias
49 1.4 kleink __weak_alias(isnan,_isnan);
50 1.4 kleink __weak_alias(isinf,_isinf);
51 1.4 kleink #endif
52 1.1 ragge
53 1.1 ragge /* ARGSUSED */
54 1.2 jtc int
55 1.1 ragge isnan(d)
56 1.1 ragge double d;
57 1.1 ragge {
58 1.1 ragge return(0);
59 1.1 ragge }
60 1.1 ragge
61 1.1 ragge /* ARGSUSED */
62 1.2 jtc int
63 1.1 ragge isinf(d)
64 1.1 ragge double d;
65 1.1 ragge {
66 1.1 ragge return(0);
67 1.1 ragge }
68