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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 __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

}