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[glibc.git] / math / w_j0f.c
blob32e2eebb565dce747a814de277b4b5b14d767918
1 /* w_j0f.c -- float version of w_j0.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
16 #if defined(LIBM_SCCS) && !defined(lint)
17 static char rcsid[] = "$NetBSD: w_j0f.c,v 1.3 1995/05/10 20:49:13 jtc Exp $";
18 #endif
21 * wrapper j0f(float x), y0f(float x)
24 #include "math.h"
25 #include "math_private.h"
27 #ifdef __STDC__
28 float j0f(float x) /* wrapper j0f */
29 #else
30 float j0f(x) /* wrapper j0f */
31 float x;
32 #endif
34 #ifdef _IEEE_LIBM
35 return __ieee754_j0f(x);
36 #else
37 float z = __ieee754_j0f(x);
38 if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z;
39 if(fabsf(x)>(float)X_TLOSS) {
40 /* j0f(|x|>X_TLOSS) */
41 return (float)__kernel_standard((double)x,(double)x,134);
42 } else
43 return z;
44 #endif
47 #ifdef __STDC__
48 float y0f(float x) /* wrapper y0f */
49 #else
50 float y0f(x) /* wrapper y0f */
51 float x;
52 #endif
54 #ifdef _IEEE_LIBM
55 return __ieee754_y0f(x);
56 #else
57 float z;
58 z = __ieee754_y0f(x);
59 if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
60 if(x <= (float)0.0){
61 if(x==(float)0.0)
62 /* d= -one/(x-x); */
63 return (float)__kernel_standard((double)x,(double)x,108);
64 else
65 /* d = zero/(x-x); */
66 return (float)__kernel_standard((double)x,(double)x,109);
68 if(x>(float)X_TLOSS) {
69 /* y0(x>X_TLOSS) */
70 return (float)__kernel_standard((double)x,(double)x,135);
71 } else
72 return z;
73 #endif