65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
|
/* w_jnf.c -- float version of w_jn.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_jnf.c,v 1.6 2002/05/26 22:02:02 wiz Exp $");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "math.h"
|
||
|
|
#include "math_private.h"
|
||
|
|
|
||
|
|
float
|
||
|
|
jnf(int n, float x) /* wrapper jnf */
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_jnf(n,x);
|
||
|
|
#else
|
||
|
|
float z;
|
||
|
|
z = __ieee754_jnf(n,x);
|
||
|
|
if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
|
||
|
|
if(fabsf(x)>(float)X_TLOSS) {
|
||
|
|
/* jn(|x|>X_TLOSS,n) */
|
||
|
|
return (float)__kernel_standard((double)n,(double)x,138);
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
float
|
||
|
|
ynf(int n, float x) /* wrapper ynf */
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_ynf(n,x);
|
||
|
|
#else
|
||
|
|
float z;
|
||
|
|
z = __ieee754_ynf(n,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)n,(double)x,112);
|
||
|
|
else
|
||
|
|
/* d = zero/(x-x); */
|
||
|
|
return (float)__kernel_standard((double)n,(double)x,113);
|
||
|
|
}
|
||
|
|
if(x>(float)X_TLOSS) {
|
||
|
|
/* yn(x>X_TLOSS,n) */
|
||
|
|
return (float)__kernel_standard((double)n,(double)x,139);
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|