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glibc/math/w_j0.c
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/* @(#)w_j0.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. | |
* ==================================================== | |
*/ | |
#if defined(LIBM_SCCS) && !defined(lint) | |
static char rcsid[] = "$NetBSD: w_j0.c,v 1.6 1995/05/10 20:49:11 jtc Exp $"; | |
#endif | |
/* | |
* wrapper j0(double x), y0(double x) | |
*/ | |
#include "math.h" | |
#include "math_private.h" | |
#ifdef __STDC__ | |
double j0(double x) /* wrapper j0 */ | |
#else | |
double j0(x) /* wrapper j0 */ | |
double x; | |
#endif | |
{ | |
#ifdef _IEEE_LIBM | |
return __ieee754_j0(x); | |
#else | |
double z = __ieee754_j0(x); | |
if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z; | |
if(fabs(x)>X_TLOSS) { | |
return __kernel_standard(x,x,34); /* j0(|x|>X_TLOSS) */ | |
} else | |
return z; | |
#endif | |
} | |
#ifdef NO_LONG_DOUBLE | |
strong_alias (j0, j0l) | |
#endif | |
#ifdef __STDC__ | |
double y0(double x) /* wrapper y0 */ | |
#else | |
double y0(x) /* wrapper y0 */ | |
double x; | |
#endif | |
{ | |
#ifdef _IEEE_LIBM | |
return __ieee754_y0(x); | |
#else | |
double z; | |
z = __ieee754_y0(x); | |
if(_LIB_VERSION == _IEEE_ || __isnan(x) ) return z; | |
if(x <= 0.0){ | |
if(x==0.0) | |
/* d= -one/(x-x); */ | |
return __kernel_standard(x,x,8); | |
else | |
/* d = zero/(x-x); */ | |
return __kernel_standard(x,x,9); | |
} | |
if(x>X_TLOSS) { | |
return __kernel_standard(x,x,35); /* y0(x>X_TLOSS) */ | |
} else | |
return z; | |
#endif | |
} | |
#ifdef NO_LONG_DOUBLE | |
strong_alias (y0, y0l) | |
#endif |