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/* wf_hypot.c -- float version of w_hypot.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.

 * ====================================================

 */

/*

 * wrapper hypotf(x,y)

 */

#include "fdlibm.h"

#include <errno.h>

#ifdef __STDC__

        float hypotf(float x, float y)  /* wrapper hypotf */

#else

        float hypotf(x,y)               /* wrapper hypotf */

        float x,y;

#endif

{

#ifdef _IEEE_LIBM

        return __ieee754_hypotf(x,y);

#else

        float z;

        struct exception exc;

        z = __ieee754_hypotf(x,y);

        if(_LIB_VERSION == _IEEE_) return z;

        if((!finitef(z))&&finitef(x)&&finitef(y)) {

            /* hypotf(finite,finite) overflow */

#ifndef HUGE_VAL 

#define HUGE_VAL inf

            double inf = 0.0;

            SET_HIGH_WORD(inf,0x7ff00000);      /* set inf to infinite */

#endif

            exc.type = OVERFLOW;

            exc.name = "hypotf";

            exc.err = 0;

            exc.arg1 = (double)x;

            exc.arg2 = (double)y;

            if (_LIB_VERSION == _SVID_)

               exc.retval = HUGE;

            else

               exc.retval = HUGE_VAL;

            if (_LIB_VERSION == _POSIX_)

               errno = ERANGE;

            else if (!matherr(&exc)) {

                errno = ERANGE;

            }

            if (exc.err != 0)

               errno = exc.err;

            return (float)exc.retval;

        } else

            return z;

#endif

}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__

        double hypot(double x, double y)

#else

        double hypot(x,y)

        double x,y;

#endif

{

        return (double) hypotf((float) x, (float) y);

}

#endif /* defined(_DOUBLE_IS_32BITS) */