1 | /* Copyright (C) 1995-2021 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdlib.h> |
20 | #include <string.h> |
21 | #include <limits.h> |
22 | |
23 | int |
24 | __seed48_r (unsigned short int seed16v[3], struct drand48_data *buffer) |
25 | { |
26 | /* Save old value at a private place to be used as return value. */ |
27 | memcpy (buffer->__old_x, buffer->__x, sizeof (buffer->__x)); |
28 | |
29 | /* Install new state. */ |
30 | buffer->__x[2] = seed16v[2]; |
31 | buffer->__x[1] = seed16v[1]; |
32 | buffer->__x[0] = seed16v[0]; |
33 | buffer->__a = 0x5deece66dull; |
34 | buffer->__c = 0xb; |
35 | buffer->__init = 1; |
36 | |
37 | return 0; |
38 | } |
39 | weak_alias (__seed48_r, seed48_r) |
40 | |