53e1b68390
This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd
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Copyright 2015 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "bitmap.h"
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int main(int argc, const char *argv[]) {
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_cleanup_bitmap_free_ Bitmap *b = NULL, *b2 = NULL;
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Iterator it;
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unsigned n = (unsigned) -1, i = 0;
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b = bitmap_new();
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assert_se(b);
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assert_se(bitmap_ensure_allocated(&b) == 0);
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bitmap_free(b);
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b = NULL;
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assert_se(bitmap_ensure_allocated(&b) == 0);
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assert_se(bitmap_isset(b, 0) == false);
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assert_se(bitmap_isset(b, 1) == false);
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assert_se(bitmap_isset(b, 256) == false);
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assert_se(bitmap_isclear(b) == true);
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assert_se(bitmap_set(b, 0) == 0);
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assert_se(bitmap_isset(b, 0) == true);
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assert_se(bitmap_isclear(b) == false);
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bitmap_unset(b, 0);
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assert_se(bitmap_isset(b, 0) == false);
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assert_se(bitmap_isclear(b) == true);
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assert_se(bitmap_set(b, 1) == 0);
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assert_se(bitmap_isset(b, 1) == true);
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assert_se(bitmap_isclear(b) == false);
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bitmap_unset(b, 1);
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assert_se(bitmap_isset(b, 1) == false);
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assert_se(bitmap_isclear(b) == true);
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assert_se(bitmap_set(b, 256) == 0);
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assert_se(bitmap_isset(b, 256) == true);
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assert_se(bitmap_isclear(b) == false);
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bitmap_unset(b, 256);
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assert_se(bitmap_isset(b, 256) == false);
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assert_se(bitmap_isclear(b) == true);
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assert_se(bitmap_set(b, 32) == 0);
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bitmap_unset(b, 0);
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assert_se(bitmap_isset(b, 32) == true);
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bitmap_unset(b, 32);
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BITMAP_FOREACH(n, NULL, it)
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assert_not_reached("NULL bitmap");
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assert_se(bitmap_set(b, 0) == 0);
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assert_se(bitmap_set(b, 1) == 0);
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assert_se(bitmap_set(b, 256) == 0);
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BITMAP_FOREACH(n, b, it) {
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assert_se(n == i);
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if (i == 0)
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i = 1;
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else if (i == 1)
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i = 256;
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else if (i == 256)
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i = (unsigned) -1;
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}
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assert_se(i == (unsigned) -1);
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i = 0;
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BITMAP_FOREACH(n, b, it) {
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assert_se(n == i);
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if (i == 0)
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i = 1;
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else if (i == 1)
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i = 256;
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else if (i == 256)
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i = (unsigned) -1;
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}
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assert_se(i == (unsigned) -1);
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bitmap_clear(b);
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assert_se(bitmap_isclear(b) == true);
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assert_se(bitmap_set(b, (unsigned) -1) == -ERANGE);
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bitmap_free(b);
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b = NULL;
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assert_se(bitmap_ensure_allocated(&b) == 0);
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assert_se(bitmap_ensure_allocated(&b2) == 0);
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assert_se(bitmap_equal(b, b2));
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assert_se(bitmap_set(b, 0) == 0);
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bitmap_unset(b, 0);
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assert_se(bitmap_equal(b, b2));
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assert_se(bitmap_set(b, 1) == 0);
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bitmap_clear(b);
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assert_se(bitmap_equal(b, b2));
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assert_se(bitmap_set(b, 0) == 0);
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assert_se(bitmap_set(b2, 0) == 0);
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assert_se(bitmap_equal(b, b2));
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return 0;
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}
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