glibc/stdlib/jrand48_r.c
Ulrich Drepper 6dbb7062ff Update.
1998-08-25 11:43  Ulrich Drepper  <drepper@cygnus.com>

	* elf/elf.h: Add syminfo stuff and other DT_* from Solaris' ELF.

1998-08-25  Bernd Schmidt  <crux@Pool.Informatik.RWTH-Aachen.DE>

	* argp/argp.h: Use __inline__ not inline.

	* sysdeps/i386/bits/select.h (FD_ZERO): Rewrite asm not to indicate
	an input register as being clobbered.
	* sysdeps/i386/memset.c (memset): Likewise.
	* sysdeps/i386/bzero.c (__bzero): Likewise.
	* sysdeps/i386/memcopy.h ({BYTE,WORD}_COPY_[FB]WD): Likewise.

1998-08-25  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* stdlib/jrand48_r.c (__jrand48_r): Set also upper half of result.
	Fixes PR libc/757 (Reported by Michael Creutz <creutz@bnl.gov).
1998-08-25 11:45:26 +00:00

44 lines
1.5 KiB
C

/* Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
int
__jrand48_r (xsubi, buffer, result)
unsigned short int xsubi[3];
struct drand48_data *buffer;
long int *result;
{
/* Compute next state. */
if (__drand48_iterate (xsubi, buffer) < 0)
return -1;
/* Store the result. */
if (sizeof (unsigned short int) == 2)
*result = ((xsubi[2] & 0x7fff) << 16) | xsubi[1];
else
*result = xsubi[2] & 0x7fffffffl;
if (xsubi[2] & (1 << (sizeof (xsubi[2]) * 8 - 1)))
*result *= -1;
return 0;
}
weak_alias (__jrand48_r, jrand48_r)