/*
Copyright (c) 2007 The NetBSD Foundation, Inc.
All rights reserved.

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modification, are permitted provided that the following conditions
are met:
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THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */
/* $NetBSD: creal.c,v 1.2 2010/09/15 16:11:29 christos Exp $ */

/*
 * Written by Matthias Drochner <drochner@NetBSD.org>.
 * Public domain.
 *
 * imported and modified include for newlib 2010/10/03 
 * Marco Atzeri <marco_atzeri@yahoo.it>
 */

/*
FUNCTION
        <<creal>>, <<crealf>>, <<creall>>---real part

INDEX
        creal
INDEX
        crealf
INDEX
        creall

SYNOPSIS
       #include <complex.h>
       double creal(double complex <[z]>);
       float crealf(float complex <[z]>);
       double long creall(long double complex <[z]>);

       
DESCRIPTION
        These functions compute the real part of <[z]>.

        <<crealf>> is identical to <<creal>>, except that it performs
        its calculations on <<float complex>>.

        <<creall>> is identical to <<creal>>, except that it performs
        its calculations on <<long double complex>>.

RETURNS
        The creal* functions return the real part value.

PORTABILITY
        <<creal>>, <<crealf>> and <<creall>> are ISO C99

QUICKREF
        <<creal>>, <<crealf>> and <<creall>> are ISO C99

*/


#include <complex.h>
#include "../common/fdlibm.h"

double
creal(double complex z)
{
	double_complex w = { .z = z };

	return (REAL_PART(w));
}