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https://github.com/systemd/systemd-stable.git
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6ba32d1c2f
@ -145,7 +145,10 @@ bool bitmap_isclear(Bitmap *b) {
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void bitmap_clear(Bitmap *b) {
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assert(b);
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free(b->bitmaps);
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b->bitmaps = NULL;
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b->n_bitmaps = 0;
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b->bitmaps_allocated = 0;
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}
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bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n) {
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@ -184,6 +187,9 @@ bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n) {
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}
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bool bitmap_equal(Bitmap *a, Bitmap *b) {
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size_t common_n_bitmaps;
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Bitmap *c;
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unsigned i;
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if (!a ^ !b)
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return false;
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@ -191,8 +197,14 @@ bool bitmap_equal(Bitmap *a, Bitmap *b) {
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if (!a)
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return true;
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if (a->n_bitmaps != b->n_bitmaps)
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common_n_bitmaps = MIN(a->n_bitmaps, b->n_bitmaps);
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if (memcmp(a->bitmaps, b->bitmaps, sizeof(uint64_t) * common_n_bitmaps) != 0)
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return false;
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return memcmp(a->bitmaps, b->bitmaps, sizeof(uint64_t) * a->n_bitmaps) == 0;
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c = a->n_bitmaps > b->n_bitmaps ? a : b;
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for (i = common_n_bitmaps; i < c->n_bitmaps; i++)
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if (c->bitmaps[i] != 0)
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return false;
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return true;
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}
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@ -20,7 +20,7 @@
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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;
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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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@ -101,5 +101,23 @@ int main(int argc, const char *argv[]) {
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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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