diff options
author | Jörg Frings-Fürst <debian@jff.email> | 2024-03-03 19:11:45 +0100 |
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committer | Jörg Frings-Fürst <debian@jff.email> | 2024-03-03 19:11:45 +0100 |
commit | 7cf710f6587e71a193a55d84dd6d8ae1a8a69ce0 (patch) | |
tree | db628840acea83dbccaf5676b89579a80e02ef51 /tests/test-random.c | |
parent | d83e85a2e6064c36f6ad3c848e39d8b8c101c4f7 (diff) | |
parent | 00893e79fc62966067af1a106567db96bd170338 (diff) |
Update upstream source from tag 'upstream/1.2'
Update to upstream version '1.2'
with Debian dir 16dafe941db3036235f48227f29c6a73587c376d
Diffstat (limited to 'tests/test-random.c')
-rw-r--r-- | tests/test-random.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tests/test-random.c b/tests/test-random.c new file mode 100644 index 00000000..4bfc1b84 --- /dev/null +++ b/tests/test-random.c @@ -0,0 +1,49 @@ +/* Test random. + Copyright (C) 2008-2024 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <config.h> + +#include <stdlib.h> + +#include "signature.h" +SIGNATURE_CHECK (srandom, void, (unsigned int)); +SIGNATURE_CHECK (initstate, char *, (unsigned int, char *, size_t)); +SIGNATURE_CHECK (setstate, char *, (char *)); +SIGNATURE_CHECK (random, long, (void)); + +#include <time.h> + +#include "macros.h" + +int +main () +{ + char buf[128]; + unsigned int i; + unsigned int n_big = 0; + + initstate (time (NULL), buf, sizeof buf); + for (i = 0; i < 1000; i++) + { + long r = random (); + ASSERT (0 <= r); + if (RAND_MAX / 2 < r) + ++n_big; + } + + /* Fail if none of the numbers were larger than RAND_MAX / 2. */ + return !n_big; +} |