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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/C/atanh.c
+++ new/usr/src/lib/libm/common/C/atanh.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 24 */
25 +
25 26 /*
26 27 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 28 * Use is subject to license terms.
28 29 */
29 30
30 31 #pragma weak __atanh = atanh
31 32
32 -/* INDENT OFF */
33 +
33 34 /*
34 35 * atanh(x)
35 36 * Code originated from 4.3bsd.
36 37 * Modified by K.C. Ng for SUN 4.0 libm.
37 38 * Method :
38 39 * 1 2x x
39 40 * atanh(x) = --- * log(1 + -------) = 0.5 * log1p(2 * --------)
40 41 * 2 1 - x 1 - x
41 42 * Note: to guarantee atanh(-x) = -atanh(x), we use
42 43 * sign(x) |x|
43 44 * atanh(x) = ------- * log1p(2*-------).
44 45 * 2 1 - |x|
45 46 *
46 47 * Special cases:
47 48 * atanh(x) is NaN if |x| > 1 with signal;
48 49 * atanh(NaN) is that NaN with no signal;
49 50 * atanh(+-1) is +-INF with signal.
50 51 */
51 -/* INDENT ON */
52 52
53 53 #include "libm.h"
54 54 #include "libm_protos.h"
55 55 #include <math.h>
56 56
57 57 double
58 -atanh(double x) {
58 +atanh(double x)
59 +{
59 60 double t;
60 61
61 62 if (isnan(x))
62 63 return (x * x); /* switched from x + x for Cheetah */
64 +
63 65 t = fabs(x);
66 +
64 67 if (t > 1.0)
65 68 return (_SVID_libm_err(x, x, 30)); /* sNaN */
69 +
66 70 if (t == 1.0)
67 71 return (_SVID_libm_err(x, x, 31)); /* x/0; */
72 +
68 73 t = t / (1.0 - t);
69 74 return (copysign(0.5, x) * log1p(t + t));
70 75 }
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