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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/C/acosh.c
+++ new/usr/src/lib/libm/common/C/acosh.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 __acosh = acosh
31 32
32 -/* INDENT OFF */
33 +
33 34 /*
34 35 * acosh(x)
35 36 * Method :
36 37 * Based on
37 38 * acosh(x) = log [ x + sqrt(x*x-1) ]
38 39 * we have
39 40 * acosh(x) := log(x)+ln2, if x is large; else
40 41 * acosh(x) := log(2x-1/(sqrt(x*x-1)+x)) if x > 2; else
41 42 * acosh(x) := log1p(t+sqrt(2.0*t+t*t)); where t = x-1.
42 43 *
43 44 * Special cases:
44 45 * acosh(x) is NaN with signal if x < 1.
45 46 * acosh(NaN) is NaN without signal.
46 47 */
47 -/* INDENT ON */
48 48
49 -#include "libm_protos.h" /* _SVID_libm_error */
49 +#include "libm_protos.h" /* _SVID_libm_error */
50 50 #include "libm_macros.h"
51 51 #include <math.h>
52 52
53 -static const double
54 - one = 1.0,
53 +static const double one = 1.0,
55 54 ln2 = 6.93147180559945286227e-01; /* 3FE62E42, FEFA39EF */
56 55
57 56 double
58 -acosh(double x) {
57 +acosh(double x)
58 +{
59 59 double t;
60 60 int hx;
61 61
62 - hx = ((int *) &x)[HIWORD];
63 - if (hx < 0x3ff00000) { /* x < 1 */
62 + hx = ((int *)&x)[HIWORD];
63 +
64 + if (hx < 0x3ff00000) { /* x < 1 */
64 65 if (isnan(x))
65 66 #if defined(FPADD_TRAPS_INCOMPLETE_ON_NAN)
66 67 return (hx >= 0xfff80000 ? x : (x - x) / (x - x));
67 - /* assumes sparc-like QNaN */
68 +
69 + /* assumes sparc-like QNaN */
68 70 #else
69 - return (x - x) / (x - x);
71 + return ((x - x) / (x - x));
70 72 #endif
71 73 else
72 74 return (_SVID_libm_err(x, x, 29));
73 75 } else if (hx >= 0x41b00000) {
74 76 /* x > 2**28 */
75 77 if (hx >= 0x7ff00000) { /* x is inf of NaN */
76 78 #if defined(FPADD_TRAPS_INCOMPLETE_ON_NAN)
77 79 return (hx >= 0x7ff80000 ? x : x + x);
78 80 /* assumes sparc-like QNaN */
79 81 #else
80 82 return (x + x);
81 83 #endif
82 - } else /* acosh(huge)=log(2x) */
84 + } else { /* acosh(huge)=log(2x) */
83 85 return (log(x) + ln2);
84 - } else if (((hx - 0x3ff00000) | ((int *) &x)[LOWORD]) == 0) {
85 - return (0.0); /* acosh(1) = 0 */
86 + }
87 + } else if (((hx - 0x3ff00000) | ((int *)&x)[LOWORD]) == 0) {
88 + return (0.0); /* acosh(1) = 0 */
86 89 } else if (hx > 0x40000000) {
87 90 /* 2**28 > x > 2 */
88 91 t = x * x;
89 92 return (log(2.0 * x - one / (x + sqrt(t - one))));
90 93 } else {
91 94 /* 1 < x < 2 */
92 95 t = x - one;
93 96 return (log1p(t + sqrt(2.0 * t + t * t)));
94 97 }
95 98 }
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