1 /* w_j1f.c -- float version of w_j1.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16 #include <sys/cdefs.h>
17 #if defined(LIBM_SCCS) && !defined(lint)
18 __RCSID("$NetBSD: w_j1f.c,v 1.6 2002/05/26 22:02:01 wiz Exp $");
19 #endif
20
21 /*
22 * wrapper of j1f,y1f
23 */
24
25 #include "math.h"
26 #include "math_private.h"
27
28 float
j1f(float x)29 j1f(float x) /* wrapper j1f */
30 {
31 #ifdef _IEEE_LIBM
32 return __ieee754_j1f(x);
33 #else
34 float z;
35 z = __ieee754_j1f(x);
36 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
37 if(fabsf(x)>(float)X_TLOSS) {
38 /* j1(|x|>X_TLOSS) */
39 return (float)__kernel_standard((double)x,(double)x,136);
40 } else
41 return z;
42 #endif
43 }
44
45 float
y1f(float x)46 y1f(float x) /* wrapper y1f */
47 {
48 #ifdef _IEEE_LIBM
49 return __ieee754_y1f(x);
50 #else
51 float z;
52 z = __ieee754_y1f(x);
53 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
54 if(x <= (float)0.0){
55 if(x==(float)0.0)
56 /* d= -one/(x-x); */
57 return (float)__kernel_standard((double)x,(double)x,110);
58 else
59 /* d = zero/(x-x); */
60 return (float)__kernel_standard((double)x,(double)x,111);
61 }
62 if(x>(float)X_TLOSS) {
63 /* y1(x>X_TLOSS) */
64 return (float)__kernel_standard((double)x,(double)x,137);
65 } else
66 return z;
67 #endif
68 }
69