37 lines
846 B
C
37 lines
846 B
C
/* $NetBSD: erand48.c,v 1.7 2000/01/22 22:19:19 mycroft Exp $ */
|
|
|
|
/*
|
|
* 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 "namespace.h"
|
|
|
|
#include <assert.h>
|
|
|
|
#include "rand48.h"
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(erand48,_erand48)
|
|
#endif
|
|
|
|
double
|
|
erand48(unsigned short xseed[3])
|
|
{
|
|
|
|
_DIAGASSERT(xseed != NULL);
|
|
|
|
__dorand48(xseed);
|
|
return ldexp((double) xseed[0], -48) +
|
|
ldexp((double) xseed[1], -32) +
|
|
ldexp((double) xseed[2], -16);
|
|
}
|