Retro68/gcc/newlib/libc/stdlib/erand48.c
Wolfgang Thaller d464252791 re-add newlib
2017-04-11 23:13:36 +02:00

35 lines
855 B
C

/*
* 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"
double
_DEFUN (_erand48_r, (r, xseed),
struct _reent *r _AND
unsigned short xseed[3])
{
__dorand48(r, xseed);
return ldexp((double) xseed[0], -48) +
ldexp((double) xseed[1], -32) +
ldexp((double) xseed[2], -16);
}
#ifndef _REENT_ONLY
double
_DEFUN (erand48, (xseed),
unsigned short xseed[3])
{
return _erand48_r (_REENT, xseed);
}
#endif /* !_REENT_ONLY */