68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/* w_j0f.c -- float version of w_j0.c.
|
|
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* 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.
|
|
* ====================================================
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: w_j0f.c,v 1.6 2002/05/26 22:02:01 wiz Exp $");
|
|
#endif
|
|
|
|
/*
|
|
* wrapper j0f(float x), y0f(float x)
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
float
|
|
j0f(float x) /* wrapper j0f */
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_j0f(x);
|
|
#else
|
|
float z = __ieee754_j0f(x);
|
|
if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
|
|
if(fabsf(x)>(float)X_TLOSS) {
|
|
/* j0f(|x|>X_TLOSS) */
|
|
return (float)__kernel_standard((double)x,(double)x,134);
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
|
|
float
|
|
y0f(float x) /* wrapper y0f */
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_y0f(x);
|
|
#else
|
|
float z;
|
|
z = __ieee754_y0f(x);
|
|
if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
|
|
if(x <= (float)0.0){
|
|
if(x==(float)0.0)
|
|
/* d= -one/(x-x); */
|
|
return (float)__kernel_standard((double)x,(double)x,108);
|
|
else
|
|
/* d = zero/(x-x); */
|
|
return (float)__kernel_standard((double)x,(double)x,109);
|
|
}
|
|
if(x>(float)X_TLOSS) {
|
|
/* y0(x>X_TLOSS) */
|
|
return (float)__kernel_standard((double)x,(double)x,135);
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|