• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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