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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/Q/log2l.c
+++ new/usr/src/lib/libm/common/Q/log2l.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 /*
31 32 * log2l(x)
32 33 * RETURN THE BASE 2 LOGARITHM OF X
33 34 *
34 35 * Method:
35 36 * purge off 0,INF, and NaN.
36 37 * n = ilogb(x)
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37 38 * if (n<0) n+=1
38 39 * z = scalbn(x,-n)
39 40 * LOG2(x) = n + (1/ln2)*log(x)
40 41 */
41 42
42 43 #pragma weak __log2l = log2l
43 44
44 45 #include "libm.h"
45 46 #include "longdouble.h"
46 47
47 -static const long double
48 - zero = 0.0L,
49 - half = 0.5L,
50 - one = 1.0L,
51 - invln2 = 1.442695040888963407359924681001892137427e+0000L;
48 +static const long double zero = 0.0L,
49 + half = 0.5L,
50 + one = 1.0L,
51 + invln2 = 1.442695040888963407359924681001892137427e+0000L;
52 52
53 53 long double
54 -log2l(long double x) {
54 +log2l(long double x)
55 +{
55 56 int n;
56 57
57 58 if (x == zero || !finitel(x))
58 59 return (logl(x));
60 +
59 61 n = ilogbl(x);
62 +
60 63 if (n < 0)
61 64 n += 1;
65 +
62 66 x = scalbnl(x, -n);
67 +
63 68 if (x == half)
64 69 return (n - one);
70 +
65 71 return (n + invln2 * logl(x));
66 72 }
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