[BACK]Return to w_j1.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / lib / libm / src
File: [cvs.NetBSD.org] / src / lib / libm / src / w_j1.c (download)

Revision 1.7, Thu Oct 9 11:35:12 1997 UTC (26 years, 6 months ago) by lukem
Branch: MAIN
CVS Tags: netbsd-1-4-base, netbsd-1-4-RELEASE, netbsd-1-4-PATCH003, netbsd-1-4-PATCH002, netbsd-1-4-PATCH001, netbsd-1-4, netbsd-1-3-base, netbsd-1-3-RELEASE, netbsd-1-3-PATCH003-CANDIDATE2, netbsd-1-3-PATCH003-CANDIDATE1, netbsd-1-3-PATCH003-CANDIDATE0, netbsd-1-3-PATCH003, netbsd-1-3-PATCH002, netbsd-1-3-PATCH001, netbsd-1-3-BETA, netbsd-1-3
Changes since 1.6: +2 -1 lines 

rcsid facism, WARNSify

/* @(#)w_j1.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.
 * ====================================================
 */

#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
__RCSID("$NetBSD: w_j1.c,v 1.7 1997/10/09 11:35:12 lukem Exp $");
#endif

/* 
 * wrapper of j1,y1 
 */

#include "math.h"
#include "math_private.h"

#ifdef __STDC__
	double j1(double x)		/* wrapper j1 */
#else
	double j1(x)			/* wrapper j1 */
	double x;
#endif
{
#ifdef _IEEE_LIBM
	return __ieee754_j1(x);
#else
	double z;
	z = __ieee754_j1(x);
	if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
	if(fabs(x)>X_TLOSS) {
	        return __kernel_standard(x,x,36); /* j1(|x|>X_TLOSS) */
	} else
	    return z;
#endif
}

#ifdef __STDC__
	double y1(double x)		/* wrapper y1 */
#else
	double y1(x)			/* wrapper y1 */
	double x;
#endif
{
#ifdef _IEEE_LIBM
	return __ieee754_y1(x);
#else
	double z;
	z = __ieee754_y1(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,10);
                else
                    /* d = zero/(x-x); */
                    return __kernel_standard(x,x,11);
        }
	if(x>X_TLOSS) {
	        return __kernel_standard(x,x,37); /* y1(x>X_TLOSS) */
	} else
	    return z;
#endif
}