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[disorder] / libtests / t-bits.c
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1/*
2 * This file is part of DisOrder.
3 * Copyright (C) 2008 Richard Kettlewell
4 *
e7eb3a27 5 * This program is free software: you can redistribute it and/or modify
f9d42b20 6 * it under the terms of the GNU General Public License as published by
e7eb3a27 7 * the Free Software Foundation, either version 3 of the License, or
f9d42b20 8 * (at your option) any later version.
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9 *
10 * This program 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
13 * GNU General Public License for more details.
14 *
f9d42b20 15 * You should have received a copy of the GNU General Public License
e7eb3a27 16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
18#include "test.h"
19#include "bits.h"
20
c68d8eba 21static void test_bits(void) {
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22 int n;
23
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24 check_integer(leftmost_bit(0), -1);
25 check_integer(leftmost_bit(0x80000000), 31);
26 check_integer(leftmost_bit(0xffffffff), 31);
27 for(n = 0; n < 28; ++n) {
28 const uint32_t b = 1 << n, limit = 2 * b;
29 uint32_t v;
30
31 for(v = b; v < limit; ++v)
32 check_integer(leftmost_bit(v), n);
33 }
34}
35
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36TEST(bits);
37
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38/*
39Local Variables:
40c-basic-offset:2
41comment-column:40
42fill-column:79
43indent-tabs-mode:nil
44End:
45*/