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5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
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--- old/usr/src/lib/libm/common/R/nextafterf.c
+++ new/usr/src/lib/libm/common/R/nextafterf.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 *
19 19 * CDDL HEADER END
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20 20 */
21 21
22 22 /*
23 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 24 */
25 25 /*
26 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 27 * Use is subject to license terms.
28 28 */
29 29
30 -#if defined(ELFOBJ)
31 30 #pragma weak nextafterf = __nextafterf
32 -#endif
33 31
34 32 #include "libm.h"
35 33
36 34 float
37 35 nextafterf(float x, float y) {
38 36 float w;
39 37 int *pw = (int *) &w;
40 38 int *px = (int *) &x;
41 39 int *py = (int *) &y;
42 40 int ix, iy, iz;
43 41
44 42 ix = px[0];
45 43 iy = py[0];
46 44 if ((ix & ~0x80000000) > 0x7f800000)
47 45 return (x * y); /* + -> * for Cheetah */
48 46 if ((iy & ~0x80000000) > 0x7f800000)
49 47 return (y * x); /* + -> * for Cheetah */
50 48 if (ix == iy || (ix | iy) == 0x80000000)
51 49 return (y); /* C99 requirement */
52 50 if ((ix & ~0x80000000) == 0)
53 51 iz = 1 | (iy & 0x80000000);
54 52 else if (ix > 0) {
55 53 if (ix > iy)
56 54 iz = ix - 1;
57 55 else
58 56 iz = ix + 1;
59 57 } else {
60 58 if (iy < 0 && ix < iy)
61 59 iz = ix + 1;
62 60 else
63 61 iz = ix - 1;
64 62 }
65 63 pw[0] = iz;
66 64 ix = iz & 0x7f800000;
67 65 if (ix == 0x7f800000) {
68 66 /* raise overflow */
69 67 volatile float t;
70 68
71 69 *(int *) &t = 0x7f7fffff;
72 70 t *= t;
73 71 } else if (ix == 0) {
74 72 /* raise underflow */
75 73 volatile float t;
76 74
77 75 *(int *) &t = 0x00800000;
78 76 t *= t;
79 77 }
80 78 return (w);
81 79 }
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