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11210 libm should be cstyle(1ONBLD) clean
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--- old/usr/src/lib/libm/common/R/sincosf.c
+++ new/usr/src/lib/libm/common/R/sincosf.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
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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.
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 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 24 */
25 +
24 26 /*
25 27 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 28 * Use is subject to license terms.
27 29 */
28 30
29 31 #pragma weak __sincosf = sincosf
30 32
31 -/* INDENT OFF */
33 +
32 34 /*
33 35 * For |x| < pi/4, let z = x * x, and approximate sin(x) by
34 36 *
35 37 * S(x) = x(S0 + S1*z)(S2 + S3*z + z*z)
36 38 * where
37 39 * S0 = 1.85735322054308378716204874632872525989806770558e-0003,
38 40 * S1 = -1.95035094218403635082921458859320791358115801259e-0004,
39 41 * S2 = 5.38400550766074785970952495168558701485841707252e+0002,
40 42 * S3 = -3.31975110777873728964197739157371509422022905947e+0001,
41 43 *
42 44 * with error bounded by |(sin(x) - S(x))/x| < 2**(-28.2), and
43 45 * cos(x) by
44 46 *
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45 47 * C(x) = (C0 + C1*z + C2*z*z) * (C3 + C4*z + z*z)
46 48 * where
47 49 * C0 = 1.09349482127188401868272000389539985058873853699e-0003
48 50 * C1 = -5.03324285989964979398034700054920226866107675091e-0004
49 51 * C2 = 2.43792880266971107750418061559602239831538067410e-0005
50 52 * C3 = 9.14499072605666582228127405245558035523741471271e+0002
51 53 * C4 = -3.63151270591815439197122504991683846785293207730e+0001
52 54 *
53 55 * with error bounded by |cos(x) - C(x)| < 2**(-34.2).
54 56 */
55 -/* INDENT ON */
56 57
57 58 #include "libm.h"
58 59
59 60 extern const int _TBL_ipio2_inf[];
60 61 extern int __rem_pio2m(double *, double *, int, int, int, const int *);
62 +
61 63 #if defined(__i386) && !defined(__amd64)
62 64 extern int __swapRP(int);
63 65 #endif
64 66
65 67 static const double C[] = {
66 68 1.85735322054308378716204874632872525989806770558e-0003,
67 69 -1.95035094218403635082921458859320791358115801259e-0004,
68 70 5.38400550766074785970952495168558701485841707252e+0002,
69 71 -3.31975110777873728964197739157371509422022905947e+0001,
70 72 1.09349482127188401868272000389539985058873853699e-0003,
71 73 -5.03324285989964979398034700054920226866107675091e-0004,
72 74 2.43792880266971107750418061559602239831538067410e-0005,
73 75 9.14499072605666582228127405245558035523741471271e+0002,
74 76 -3.63151270591815439197122504991683846785293207730e+0001,
75 77 0.636619772367581343075535, /* 2^ -1 * 1.45F306DC9C883 */
76 78 0.5,
77 79 1.570796326734125614166, /* 2^ 0 * 1.921FB54400000 */
78 80 6.077100506506192601475e-11, /* 2^-34 * 1.0B4611A626331 */
79 81 };
80 82
81 -#define S0 C[0]
82 -#define S1 C[1]
83 -#define S2 C[2]
84 -#define S3 C[3]
85 -#define C0 C[4]
86 -#define C1 C[5]
87 -#define C2 C[6]
88 -#define C3 C[7]
89 -#define C4 C[8]
90 -#define invpio2 C[9]
91 -#define half C[10]
92 -#define pio2_1 C[11]
93 -#define pio2_t C[12]
83 +#define S0 C[0]
84 +#define S1 C[1]
85 +#define S2 C[2]
86 +#define S3 C[3]
87 +#define C0 C[4]
88 +#define C1 C[5]
89 +#define C2 C[6]
90 +#define C3 C[7]
91 +#define C4 C[8]
92 +#define invpio2 C[9]
93 +#define half C[10]
94 +#define pio2_1 C[11]
95 +#define pio2_t C[12]
94 96
95 97 void
96 98 sincosf(float x, float *s, float *c)
97 99 {
98 - double y, z, w;
99 - float f, g;
100 - int n, ix, hx, hy;
100 + double y, z, w;
101 + float f, g;
102 + int n, ix, hx, hy;
101 103 volatile int i __unused;
102 104
103 105 hx = *((int *)&x);
104 106 ix = hx & 0x7fffffff;
105 107
106 108 y = (double)x;
107 109
108 - if (ix <= 0x4016cbe4) { /* |x| < 3*pi/4 */
110 + if (ix <= 0x4016cbe4) { /* |x| < 3*pi/4 */
109 111 if (ix <= 0x3f490fdb) { /* |x| < pi/4 */
110 112 if (ix <= 0x39800000) { /* |x| <= 2**-12 */
111 113 i = (int)y;
112 114 #ifdef lint
113 115 i = i;
114 116 #endif
115 117 *s = x;
116 118 *c = 1.0f;
117 119 return;
118 120 }
121 +
119 122 z = y * y;
120 - *s = (float)((y * (S0 + z * S1)) *
121 - (S2 + z * (S3 + z)));
122 - *c = (float)(((C0 + z * C1) + (z * z) * C2) *
123 - (C3 + z * (C4 + z)));
123 + *s = (float)((y * (S0 + z * S1)) * (S2 + z * (S3 + z)));
124 + *c = (float)(((C0 + z * C1) + (z * z) * C2) * (C3 + z *
125 + (C4 + z)));
124 126 } else if (hx > 0) {
125 127 y = (y - pio2_1) - pio2_t;
126 128 z = y * y;
127 - *s = (float)(((C0 + z * C1) + (z * z) * C2) *
128 - (C3 + z * (C4 + z)));
129 - *c = (float)-((y * (S0 + z * S1)) *
130 - (S2 + z * (S3 + z)));
129 + *s = (float)(((C0 + z * C1) + (z * z) * C2) * (C3 + z *
130 + (C4 + z)));
131 + *c = (float)-((y * (S0 + z * S1)) * (S2 + z * (S3 +
132 + z)));
131 133 } else {
132 134 y = (y + pio2_1) + pio2_t;
133 135 z = y * y;
134 - *s = (float)-(((C0 + z * C1) + (z * z) * C2) *
135 - (C3 + z * (C4 + z)));
136 - *c = (float)((y * (S0 + z * S1)) *
137 - (S2 + z * (S3 + z)));
136 + *s = (float)-(((C0 + z * C1) + (z * z) * C2) * (C3 + z *
137 + (C4 + z)));
138 + *c = (float)((y * (S0 + z * S1)) * (S2 + z * (S3 + z)));
138 139 }
140 +
139 141 return;
140 142 } else if (ix <= 0x49c90fdb) { /* |x| < 2^19*pi */
141 143 #if defined(__i386) && !defined(__amd64)
142 - int rp;
144 + int rp;
143 145
144 146 rp = __swapRP(fp_extended);
145 147 #endif
146 148 w = y * invpio2;
149 +
147 150 if (hx < 0)
148 151 n = (int)(w - half);
149 152 else
150 153 n = (int)(w + half);
154 +
151 155 y = (y - n * pio2_1) - n * pio2_t;
152 156 #if defined(__i386) && !defined(__amd64)
153 157 if (rp != fp_extended)
154 158 (void) __swapRP(rp);
155 159 #endif
156 160 } else {
157 161 if (ix >= 0x7f800000) {
158 162 *s = *c = x / x;
159 163 return;
160 164 }
165 +
161 166 hy = ((int *)&y)[HIWORD];
162 167 n = ((hy >> 20) & 0x7ff) - 1046;
163 168 ((int *)&w)[HIWORD] = (hy & 0xfffff) | 0x41600000;
164 169 ((int *)&w)[LOWORD] = ((int *)&y)[LOWORD];
165 170 n = __rem_pio2m(&w, &y, n, 1, 0, _TBL_ipio2_inf);
171 +
166 172 if (hy < 0) {
167 173 y = -y;
168 174 n = -n;
169 175 }
170 176 }
171 177
172 178 z = y * y;
173 179 f = (float)((y * (S0 + z * S1)) * (S2 + z * (S3 + z)));
174 - g = (float)(((C0 + z * C1) + (z * z) * C2) *
175 - (C3 + z * (C4 + z)));
180 + g = (float)(((C0 + z * C1) + (z * z) * C2) * (C3 + z * (C4 + z)));
181 +
176 182 if (n & 2) {
177 183 f = -f;
178 184 g = -g;
179 185 }
186 +
180 187 if (n & 1) {
181 188 *s = g;
182 189 *c = -f;
183 190 } else {
184 191 *s = f;
185 192 *c = g;
186 193 }
187 194 }
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