1 /* w_jnf.c -- float version of w_jn.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_jnf.c,v 1.6 2002/05/26 22:02:02 wiz Exp $");
19 #endif
20
21 #include "math.h"
22 #include "math_private.h"
23
24 float
jnf(int n,float x)25 jnf(int n, float x) /* wrapper jnf */
26 {
27 #ifdef _IEEE_LIBM
28 return __ieee754_jnf(n,x);
29 #else
30 float z;
31 z = __ieee754_jnf(n,x);
32 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
33 if(fabsf(x)>(float)X_TLOSS) {
34 /* jn(|x|>X_TLOSS,n) */
35 return (float)__kernel_standard((double)n,(double)x,138);
36 } else
37 return z;
38 #endif
39 }
40
41 float
ynf(int n,float x)42 ynf(int n, float x) /* wrapper ynf */
43 {
44 #ifdef _IEEE_LIBM
45 return __ieee754_ynf(n,x);
46 #else
47 float z;
48 z = __ieee754_ynf(n,x);
49 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
50 if(x <= (float)0.0){
51 if(x==(float)0.0)
52 /* d= -one/(x-x); */
53 return (float)__kernel_standard((double)n,(double)x,112);
54 else
55 /* d = zero/(x-x); */
56 return (float)__kernel_standard((double)n,(double)x,113);
57 }
58 if(x>(float)X_TLOSS) {
59 /* yn(x>X_TLOSS,n) */
60 return (float)__kernel_standard((double)n,(double)x,139);
61 } else
62 return z;
63 #endif
64 }
65