71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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Copyright 2010 SINTEF ICT, Applied Mathematics.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HASH_SET_H_INCLUDED
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#define HASH_SET_H_INCLUDED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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/* ---------------------------------------------------------------------- */
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/* Poor-man's unordered set (ind. key insert/all key extract only). */
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/* ---------------------------------------------------------------------- */
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struct hash_set {
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size_t m; /* Table/set capacity (1<<p for some p) */
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int *s; /* Set representation */
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};
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/* ---------------------------------------------------------------------- */
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/* Release dynamic memory resources for hash set 's'. */
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/* ---------------------------------------------------------------------- */
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void
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hash_set_deallocate(struct hash_set *s);
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/* ---------------------------------------------------------------------- */
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/* Construct an emtpy hash set capable of holding 'm' elements */
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/* ---------------------------------------------------------------------- */
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struct hash_set *
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hash_set_allocate(int m);
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/* ---------------------------------------------------------------------- */
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/* Insert element 'k' into hash set 's'. */
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/* ---------------------------------------------------------------------- */
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int
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hash_set_insert(int k, struct hash_set *s);
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/* ---------------------------------------------------------------------- */
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/* Count number of valid keys in a hash set. */
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/* ---------------------------------------------------------------------- */
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size_t
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hash_set_count_elms(const struct hash_set *set);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HASH_SET_H_INCLUDED */
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