xref: /minix3/lib/libm/src/w_j1f.c (revision 2fe8fb192fe7e8720e3e7a77f928da545e872a6a)
1*2fe8fb19SBen Gras /* w_j1f.c -- float version of w_j1.c.
2*2fe8fb19SBen Gras  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3*2fe8fb19SBen Gras  */
4*2fe8fb19SBen Gras 
5*2fe8fb19SBen Gras /*
6*2fe8fb19SBen Gras  * ====================================================
7*2fe8fb19SBen Gras  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8*2fe8fb19SBen Gras  *
9*2fe8fb19SBen Gras  * Developed at SunPro, a Sun Microsystems, Inc. business.
10*2fe8fb19SBen Gras  * Permission to use, copy, modify, and distribute this
11*2fe8fb19SBen Gras  * software is freely granted, provided that this notice
12*2fe8fb19SBen Gras  * is preserved.
13*2fe8fb19SBen Gras  * ====================================================
14*2fe8fb19SBen Gras  */
15*2fe8fb19SBen Gras 
16*2fe8fb19SBen Gras #include <sys/cdefs.h>
17*2fe8fb19SBen Gras #if defined(LIBM_SCCS) && !defined(lint)
18*2fe8fb19SBen Gras __RCSID("$NetBSD: w_j1f.c,v 1.6 2002/05/26 22:02:01 wiz Exp $");
19*2fe8fb19SBen Gras #endif
20*2fe8fb19SBen Gras 
21*2fe8fb19SBen Gras /*
22*2fe8fb19SBen Gras  * wrapper of j1f,y1f
23*2fe8fb19SBen Gras  */
24*2fe8fb19SBen Gras 
25*2fe8fb19SBen Gras #include "math.h"
26*2fe8fb19SBen Gras #include "math_private.h"
27*2fe8fb19SBen Gras 
28*2fe8fb19SBen Gras float
j1f(float x)29*2fe8fb19SBen Gras j1f(float x)		/* wrapper j1f */
30*2fe8fb19SBen Gras {
31*2fe8fb19SBen Gras #ifdef _IEEE_LIBM
32*2fe8fb19SBen Gras 	return __ieee754_j1f(x);
33*2fe8fb19SBen Gras #else
34*2fe8fb19SBen Gras 	float z;
35*2fe8fb19SBen Gras 	z = __ieee754_j1f(x);
36*2fe8fb19SBen Gras 	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
37*2fe8fb19SBen Gras 	if(fabsf(x)>(float)X_TLOSS) {
38*2fe8fb19SBen Gras 		/* j1(|x|>X_TLOSS) */
39*2fe8fb19SBen Gras 	        return (float)__kernel_standard((double)x,(double)x,136);
40*2fe8fb19SBen Gras 	} else
41*2fe8fb19SBen Gras 	    return z;
42*2fe8fb19SBen Gras #endif
43*2fe8fb19SBen Gras }
44*2fe8fb19SBen Gras 
45*2fe8fb19SBen Gras float
y1f(float x)46*2fe8fb19SBen Gras y1f(float x)		/* wrapper y1f */
47*2fe8fb19SBen Gras {
48*2fe8fb19SBen Gras #ifdef _IEEE_LIBM
49*2fe8fb19SBen Gras 	return __ieee754_y1f(x);
50*2fe8fb19SBen Gras #else
51*2fe8fb19SBen Gras 	float z;
52*2fe8fb19SBen Gras 	z = __ieee754_y1f(x);
53*2fe8fb19SBen Gras 	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
54*2fe8fb19SBen Gras         if(x <= (float)0.0){
55*2fe8fb19SBen Gras                 if(x==(float)0.0)
56*2fe8fb19SBen Gras                     /* d= -one/(x-x); */
57*2fe8fb19SBen Gras                     return (float)__kernel_standard((double)x,(double)x,110);
58*2fe8fb19SBen Gras                 else
59*2fe8fb19SBen Gras                     /* d = zero/(x-x); */
60*2fe8fb19SBen Gras                     return (float)__kernel_standard((double)x,(double)x,111);
61*2fe8fb19SBen Gras         }
62*2fe8fb19SBen Gras 	if(x>(float)X_TLOSS) {
63*2fe8fb19SBen Gras 		/* y1(x>X_TLOSS) */
64*2fe8fb19SBen Gras 	        return (float)__kernel_standard((double)x,(double)x,137);
65*2fe8fb19SBen Gras 	} else
66*2fe8fb19SBen Gras 	    return z;
67*2fe8fb19SBen Gras #endif
68*2fe8fb19SBen Gras }
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