65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* w_jnf.c -- float version of w_jn.c.
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#include <sys/cdefs.h>
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#if defined(LIBM_SCCS) && !defined(lint)
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__RCSID("$NetBSD: w_jnf.c,v 1.6 2002/05/26 22:02:02 wiz Exp $");
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#endif
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#include "math.h"
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#include "math_private.h"
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float
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jnf(int n, float x) /* wrapper jnf */
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{
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#ifdef _IEEE_LIBM
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return __ieee754_jnf(n,x);
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#else
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float z;
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z = __ieee754_jnf(n,x);
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if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
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if(fabsf(x)>(float)X_TLOSS) {
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/* jn(|x|>X_TLOSS,n) */
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return (float)__kernel_standard((double)n,(double)x,138);
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} else
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return z;
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#endif
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}
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float
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ynf(int n, float x) /* wrapper ynf */
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{
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#ifdef _IEEE_LIBM
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return __ieee754_ynf(n,x);
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#else
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float z;
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z = __ieee754_ynf(n,x);
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if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
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if(x <= (float)0.0){
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if(x==(float)0.0)
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/* d= -one/(x-x); */
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return (float)__kernel_standard((double)n,(double)x,112);
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else
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/* d = zero/(x-x); */
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return (float)__kernel_standard((double)n,(double)x,113);
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}
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if(x>(float)X_TLOSS) {
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/* yn(x>X_TLOSS,n) */
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return (float)__kernel_standard((double)n,(double)x,139);
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} else
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return z;
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#endif
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}
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