/****************************************************************************
 *
 * $Source: /usr/local/cvsroot/gccsdk/unixlib/source/stdlib/erand48.c,v $
 * $Date: 2003/01/21 17:54:22 $
 * $Revision: 1.3 $
 * $State: Exp $
 * $Author: admin $
 *
 ***************************************************************************/

/*
 * Copyright (c) 1993 Martin Birgmeier
 * All rights reserved.
 *
 * You may redistribute unmodified or modified versions of this source
 * code provided that the above copyright notice and this and the
 * following conditions are retained.
 *
 * This software is provided ``as is'', and comes with no warranties
 * of any kind. I shall in no event be liable for anything that happens
 * to anyone/anything when using this software.
 */

#include "rand48.h"
#include <pthread.h>

double
erand48 (unsigned short xseed[3])
{
  PTHREAD_UNSAFE

  _dorand48 (xseed);
  return ldexp ((double) xseed[0], -48) +
    ldexp ((double) xseed[1], -32) + ldexp ((double) xseed[2], -16);
}
