1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
23 */
24 /*
25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
27 */
28
29 #pragma weak __erff = erff
30 #pragma weak __erfcf = erfcf
31
32 #include "libm.h"
33
34 #if defined(__i386) && !defined(__amd64)
35 extern int __swapRP(int);
36 #endif
37
38 float
39 erff(float x) {
40 int ix;
41
42 ix = *(int *)&x & ~0x80000000;
43 if (ix > 0x7f800000) /* x is NaN */
44 return (x * x);
45 return ((float)erf((double)x));
46 }
47
48 float
49 erfcf(float x) {
50 float f;
51 int ix;
52 #if defined(__i386) && !defined(__amd64)
53 int rp;
54 #endif
55
56 ix = *(int *)&x & ~0x80000000;
57 if (ix > 0x7f800000) /* x is NaN */
58 return (x * x);
59
60 #if defined(__i386) && !defined(__amd64)
61 rp = __swapRP(fp_extended);
62 #endif
63 f = (float)erfc((double)x);
64 #if defined(__i386) && !defined(__amd64)
65 if (rp != fp_extended)
66 (void) __swapRP(rp);
67 #endif
68 return (f);
69 }
|
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 */
25
26 /*
27 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 #pragma weak __erff = erff
32 #pragma weak __erfcf = erfcf
33
34 #include "libm.h"
35
36 #if defined(__i386) && !defined(__amd64)
37 extern int __swapRP(int);
38 #endif
39
40 float
41 erff(float x)
42 {
43 int ix;
44
45 ix = *(int *)&x & ~0x80000000;
46
47 if (ix > 0x7f800000) /* x is NaN */
48 return (x * x);
49
50 return ((float)erf((double)x));
51 }
52
53 float
54 erfcf(float x)
55 {
56 float f;
57 int ix;
58
59 #if defined(__i386) && !defined(__amd64)
60 int rp;
61 #endif
62
63 ix = *(int *)&x & ~0x80000000;
64
65 if (ix > 0x7f800000) /* x is NaN */
66 return (x * x);
67
68 #if defined(__i386) && !defined(__amd64)
69 rp = __swapRP(fp_extended);
70 #endif
71 f = (float)erfc((double)x);
72 #if defined(__i386) && !defined(__amd64)
73 if (rp != fp_extended)
74 (void) __swapRP(rp);
75 #endif
76 return (f);
77 }
|