Subversion Repositories openrisc_2011-10-31

/* wf_exp2.c -- float version of w_exp2.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 exp2f(x)

 */

#include "fdlibm.h"

#include <errno.h>

#include <math.h>

#ifdef __STDC__

        float exp2f(float x)            /* wrapper exp2f */

#else

        float exp2f(x)                  /* wrapper exp2f */

        float x;

#endif

{

  return powf(2.0, x);

}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__

        double exp2(double x)

#else

        double exp2(x)

        double x;

#endif

{

        return (double) exp2f((float) x);

}

#endif /* defined(_DOUBLE_IS_32BITS) */