1 | /* Copyright (C) 1992-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <stdlib.h> |
19 | #include <stdio.h> |
20 | |
21 | int |
22 | main (void) |
23 | { |
24 | int i1, i2; |
25 | int j1, j2; |
26 | |
27 | /* The C standard says that "If rand is called before any calls to |
28 | srand have been made, the same sequence shall be generated as |
29 | when srand is first called with a seed value of 1." */ |
30 | i1 = rand(); |
31 | i2 = rand(); |
32 | srand (seed: 1); |
33 | j1 = rand(); |
34 | j2 = rand(); |
35 | if (i1 < 0 || i2 < 0 || j1 < 0 || j2 < 0) { |
36 | puts (s: "Test FAILED!" ); |
37 | } |
38 | if (j1 == i1 && j2 == i2) |
39 | { |
40 | puts (s: "Test succeeded." ); |
41 | return 0; |
42 | } |
43 | else |
44 | { |
45 | if (j1 != i1) |
46 | printf (format: "%d != %d\n" , j1, i1); |
47 | if (j2 != i2) |
48 | printf (format: "%d != %d\n" , j2, i2); |
49 | puts (s: "Test FAILED!" ); |
50 | return 1; |
51 | } |
52 | } |
53 | |