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5261 libm should stop using synonyms.h
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--- old/usr/src/lib/libm/common/complex/catanf.c
+++ new/usr/src/lib/libm/common/complex/catanf.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.
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 *
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19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 23 */
24 24 /*
25 25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 26 * Use is subject to license terms.
27 27 */
28 28
29 -#pragma weak catanf = __catanf
29 +#pragma weak __catanf = catanf
30 30
31 31 #include "libm.h"
32 32 #include "complex_wrapper.h"
33 33
34 34 #if defined(__i386) && !defined(__amd64)
35 35 extern int __swapRP(int);
36 36 #endif
37 37
38 38 static const float
39 39 pi_2 = 1.570796326794896558e+00F,
40 40 zero = 0.0F,
41 41 half = 0.5F,
42 42 two = 2.0F,
43 43 one = 1.0F;
44 44
45 45 fcomplex
46 46 catanf(fcomplex z) {
47 47 fcomplex ans;
48 48 float x, y, ax, ay, t;
49 49 double dx, dy, dt;
50 50 int hx, hy, ix, iy;
51 51
52 52 x = F_RE(z);
53 53 y = F_IM(z);
54 54 ax = fabsf(x);
55 55 ay = fabsf(y);
56 56 hx = THE_WORD(x);
57 57 hy = THE_WORD(y);
58 58 ix = hx & 0x7fffffff;
59 59 iy = hy & 0x7fffffff;
60 60
61 61 if (ix >= 0x7f800000) { /* x is inf or NaN */
62 62 if (ix == 0x7f800000) {
63 63 F_RE(ans) = pi_2;
64 64 F_IM(ans) = zero;
65 65 } else {
66 66 F_RE(ans) = x * x;
67 67 if (iy == 0 || iy == 0x7f800000)
68 68 F_IM(ans) = zero;
69 69 else
70 70 F_IM(ans) = (fabsf(y) - ay) / (fabsf(y) - ay);
71 71 }
72 72 } else if (iy >= 0x7f800000) { /* y is inf or NaN */
73 73 if (iy == 0x7f800000) {
74 74 F_RE(ans) = pi_2;
75 75 F_IM(ans) = zero;
76 76 } else {
77 77 F_RE(ans) = (fabsf(x) - ax) / (fabsf(x) - ax);
78 78 F_IM(ans) = y * y;
79 79 }
80 80 } else if (ix == 0) {
81 81 /* INDENT OFF */
82 82 /*
83 83 * x = 0
84 84 * 1 1
85 85 * A = --- * atan2(2x, 1-x*x-y*y) = --- atan2(0,1-|y|)
86 86 * 2 2
87 87 *
88 88 * 1 [ (y+1)*(y+1) ] 1 2 1 2y
89 89 * B = - log [ ----------- ] = - log (1+ ---) or - log(1+ ----)
90 90 * 4 [ (y-1)*(y-1) ] 2 y-1 2 1-y
91 91 */
92 92 /* INDENT ON */
93 93 t = one - ay;
94 94 if (iy == 0x3f800000) {
95 95 /* y=1: catan(0,1)=(0,+inf) with 1/0 signal */
96 96 F_IM(ans) = ay / ax;
97 97 F_RE(ans) = zero;
98 98 } else if (iy > 0x3f800000) { /* y>1 */
99 99 F_IM(ans) = half * log1pf(two / (-t));
100 100 F_RE(ans) = pi_2;
101 101 } else { /* y<1 */
102 102 F_IM(ans) = half * log1pf((ay + ay) / t);
103 103 F_RE(ans) = zero;
104 104 }
105 105 } else {
106 106 /* INDENT OFF */
107 107 /*
108 108 * use double precision x,y
109 109 * 1
110 110 * A = --- * atan2(2x, 1-x*x-y*y)
111 111 * 2
112 112 *
113 113 * 1 [ x*x+(y+1)*(y+1) ] 1 4y
114 114 * B = - log [ --------------- ] = - log (1+ -----------------)
115 115 * 4 [ x*x+(y-1)*(y-1) ] 4 x*x + (y-1)*(y-1)
116 116 */
117 117 /* INDENT ON */
118 118 #if defined(__i386) && !defined(__amd64)
119 119 int rp = __swapRP(fp_extended);
120 120 #endif
121 121 dx = (double)ax;
122 122 dy = (double)ay;
123 123 F_RE(ans) = (float)(0.5 * atan2(dx + dx,
124 124 1.0 - dx * dx - dy * dy));
125 125 dt = dy - 1.0;
126 126 F_IM(ans) = (float)(0.25 * log1p(4.0 * dy /
127 127 (dx * dx + dt * dt)));
128 128 #if defined(__i386) && !defined(__amd64)
129 129 if (rp != fp_extended)
130 130 (void) __swapRP(rp);
131 131 #endif
132 132 }
133 133 if (hx < 0)
134 134 F_RE(ans) = -F_RE(ans);
135 135 if (hy < 0)
136 136 F_IM(ans) = -F_IM(ans);
137 137 return (ans);
138 138 }
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