platform_bionic/libc/bionic/erand48.c
Jim Huang 70478100d5 Remove duplicated _rand48 implementation. Use stdlib version instead
Originally, there are _rand48 (in libc/bionic/_rand48.c) and __rand48
(in libc/stdlib/_rand48.c) implemented in bionic.  Besides the naming,
the functionality is identical.  This patch removes the duplicated
_rand48.  Also, drand48 and erand48 are modified accordingly.

Change-Id: Ie5761a0a97f45df8538222a77edacb7c3e0125d7
2010-10-25 16:27:47 -07:00

25 lines
669 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 <sys/cdefs.h>
#include "rand48.h"
double
erand48(unsigned short xseed[3])
{
__dorand48(xseed);
return ldexp((double) xseed[0], -48) +
ldexp((double) xseed[1], -32) +
ldexp((double) xseed[2], -16);
}