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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/Q/scalbnl.c
+++ new/usr/src/lib/libm/common/Q/scalbnl.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 __scalbnl = scalbnl
31 32
32 33 #include "libm.h"
33 -#include <float.h> /* LDBL_MAX, LDBL_MIN */
34 -#include <stdlib.h> /* abs */
34 +#include <float.h> /* LDBL_MAX, LDBL_MIN */
35 +#include <stdlib.h> /* abs */
35 36
36 37 #if defined(__sparc)
37 -#define XSET_EXP(k, x) ((int *) &x)[0] = (((int *) &x)[0] & ~0x7fff0000) | \
38 - (k << 16)
39 -#define ISINFNANL(k, x) (k == 0x7fff)
40 -#define XTWOT_OFFSET 113
41 -static const long double xtwot = 10384593717069655257060992658440192.0L,
42 - /* 2^113 */
43 - twomtm1 = 4.814824860968089632639944856462318296E-35L; /* 2^-114 */
38 +#define XSET_EXP(k, x) ((int *)&x)[0] = (((int *)&x)[0] & \
39 + ~0x7fff0000) | (k << 16)
40 +#define ISINFNANL(k, x) (k == 0x7fff)
41 +#define XTWOT_OFFSET 113
42 +
43 +/* 2^113 */
44 +static const long double xtwot = 10384593717069655257060992658440192.0L;
45 +/* 2^-114 */
46 +static const long double twomtm1 = 4.814824860968089632639944856462318296E-35L;
44 47 #elif defined(__x86)
45 -#define XSET_EXP(k, x) ((int *) &x)[2] = (((int *) &x)[2] & ~0x7fff) | k
48 +#define XSET_EXP(k, x) ((int *)&x)[2] = (((int *)&x)[2] & ~0x7fff) | k
46 49 #if defined(HANDLE_UNSUPPORTED)
47 -#define ISINFNANL(k, x) (k == 0x7fff || k != 0 && \
48 - (((int *) &x)[1] & 0x80000000) == 0)
50 +#define ISINFNANL(k, x) (k == 0x7fff || k != 0 && (((int *)&x)[1] & \
51 + 0x80000000) == 0)
49 52 #else
50 -#define ISINFNANL(k, x) (k == 0x7fff)
53 +#define ISINFNANL(k, x) (k == 0x7fff)
51 54 #endif
52 -#define XTWOT_OFFSET 64
55 +#define XTWOT_OFFSET 64
56 +
53 57 static const long double xtwot = 18446744073709551616.0L, /* 2^64 */
54 58 twomtm1 = 2.7105054312137610850186E-20L; /* 2^-65 */
55 59 #endif
56 60
57 61 long double
58 -scalbnl(long double x, int n) {
62 +scalbnl(long double x, int n)
63 +{
59 64 int k = XBIASED_EXP(x);
60 65
61 66 if (ISINFNANL(k, x))
62 67 return (x + x);
68 +
63 69 if (ISZEROL(x) || n == 0)
64 70 return (x);
71 +
65 72 if (k == 0) {
66 73 x *= xtwot;
67 74 k = XBIASED_EXP(x) - XTWOT_OFFSET;
68 75 }
69 - if ((unsigned) abs(n) >= 131072) /* cast to unsigned for -2^31 */
76 +
77 + if ((unsigned)abs(n) >= 131072) /* cast to unsigned for -2^31 */
70 78 n >>= 1; /* avoid subsequent integer overflow */
79 +
71 80 k += n;
81 +
72 82 if (k > 0x7ffe)
73 83 return (LDBL_MAX * copysignl(LDBL_MAX, x));
84 +
74 85 if (k <= -XTWOT_OFFSET - 1)
75 86 return (LDBL_MIN * copysignl(LDBL_MIN, x));
87 +
76 88 if (k > 0) {
77 89 XSET_EXP(k, x);
78 90 return (x);
79 91 }
92 +
80 93 k += XTWOT_OFFSET + 1;
81 94 XSET_EXP(k, x);
82 95 return (x * twomtm1);
83 96 }
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