1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* @(#)w_j1.c 5.1 93/09/24 */
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
* wrapper of j1,y1
*/
#include "fdlibm.h"
#include <errno.h>
#ifndef _DOUBLE_IS_32BITS
#if !defined(_IEEE_LIBM) || !defined(HAVE_ALIAS_ATTRIBUTE)
#ifdef __STDC__
double j1(double x) /* wrapper j1 */
#else
double j1(x) /* wrapper j1 */
double x;
#endif
{
double z;
z = __ieee754_j1(x);
if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
if(fabs(x)>X_TLOSS) {
/* j1(|x|>X_TLOSS) */
errno = ERANGE;
return 0.0;
} else
return z;
}
#endif
#if !defined(_IEEE_LIBM) || !defined(HAVE_ALIAS_ATTRIBUTE)
#ifdef __STDC__
double y1(double x) /* wrapper y1 */
#else
double y1(x) /* wrapper y1 */
double x;
#endif
{
double z;
z = __ieee754_y1(x);
if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
if(x < 0.0){
/* y1(x<0) = NaN */
errno = EDOM;
}
if(x == 0.0){
/* y1(0) = -inf */
errno = ERANGE;
}
if(x>X_TLOSS) {
/* y1(x>X_TLOSS) */
errno = ERANGE;
}
return z;
}
#endif
#endif /* defined(_DOUBLE_IS_32BITS) */
|
