[uClibc-cvs] uClibc/libc/stdlib seed48.c, NONE, 1.1 seed48_r.c, NONE, 1.1 Makefile, 1.52, 1.53

[Erik Andersen]

Update of /var/cvs/uClibc/libc/stdlib
In directory winder:/tmp/cvs-serv17138

Modified Files:
	Makefile 
Added Files:
	seed48.c seed48_r.c 
Log Message:
mjn3 noticed we were missing seed48, which was odd since we had
all the other *48 random functions.


--- NEW FILE: seed48_r.c ---
/* Copyright (C) 1995, 1997, 1998, 2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper at 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <stdlib.h>
#include <string.h>
#include <limits.h>

int seed48_r (unsigned short int seed16v[3], struct drand48_data *buffer)
{
    /* Save old value at a private place to be used as return value.  */
    memcpy (buffer->__old_x, buffer->__x, sizeof (buffer->__x));

    /* Install new state.  */
    buffer->__x[2] = seed16v[2];
    buffer->__x[1] = seed16v[1];
    buffer->__x[0] = seed16v[0];
    buffer->__a = 0x5deece66dull;
    buffer->__c = 0xb;
    buffer->__init = 1;

    return 0;
}

Index: Makefile
===================================================================
RCS file: /var/cvs/uClibc/libc/stdlib/Makefile,v
retrieving revision 1.52
retrieving revision 1.53
diff -u -d -r1.52 -r1.53
--- Makefile	1 Aug 2003 20:08:54 -0000	1.52
+++ Makefile	5 Sep 2003 21:04:39 -0000	1.53
@@ -82,7 +82,8 @@
 	rand.c random.c random_r.c setenv.c system.c div.c ldiv.c getpt.c \
 	ptsname.c grantpt.c unlockpt.c gcvt.c drand48-iter.c jrand48.c \
 	jrand48_r.c lrand48.c lrand48_r.c mrand48.c mrand48_r.c nrand48.c \
-	nrand48_r.c rand_r.c srand48.c srand48_r.c calloc.c valloc.c
+	nrand48_r.c rand_r.c srand48.c srand48_r.c seed48.c seed48_r.c \
+	calloc.c valloc.c
 ifeq ($(UCLIBC_HAS_FLOATS),y)
 	CSRC += drand48.c drand48_r.c erand48.c erand48_r.c
 endif

--- NEW FILE: seed48.c ---
/* Copyright (C) 1995,1996,1997,1998,2001,2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper at 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <stdlib.h>

/* Global state for non-reentrant functions.  Defined in drand48-iter.c.  */
extern struct drand48_data __libc_drand48_data;

unsigned short int *
seed48 (unsigned short int seed16v[3])
{
    (void) seed48_r (seed16v, &__libc_drand48_data);
    return __libc_drand48_data.__old_x;
}