1 /*-
2 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 /* __FBSDID("$FreeBSD: src/lib/msun/src/s_scalbln.c,v 1.2 2005/03/07 04:57:50 das Exp $"); */
29
30 #include <limits.h>
31 #include <math.h>
32
33 double
scalbln(double x,long n)34 scalbln (double x, long n)
35 {
36 int in;
37
38 in = (int)n;
39 if (in != n) {
40 if (n > 0)
41 in = INT_MAX;
42 else
43 in = INT_MIN;
44 }
45 return (scalbn(x, in));
46 }
47
48 float
scalblnf(float x,long n)49 scalblnf (float x, long n)
50 {
51 int in;
52
53 in = (int)n;
54 if (in != n) {
55 if (n > 0)
56 in = INT_MAX;
57 else
58 in = INT_MIN;
59 }
60 return (scalbnf(x, in));
61 }
62
63 long double
scalblnl(long double x,long n)64 scalblnl (long double x, long n)
65 {
66 int in;
67
68 in = (int)n;
69 if (in != n) {
70 if (n > 0)
71 in = INT_MAX;
72 else
73 in = INT_MIN;
74 }
75 return (scalbnl(x, (int)n));
76 }
77