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45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* ------------------------------------------------------------------------
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libcperm - A library for creating random permutations.
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Copyright (c) 2014, Lance Alt
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This file is part of libcperm.
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by 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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This library 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 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 this library. If not, see <http://www.gnu.org/licenses/>.
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------------------------------------------------------------------------
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*/
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#ifndef PREFIX_H
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#define PREFIX_H
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#include <stdint.h>
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#include "cperm.h"
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struct prefix_element {
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uint32_t pt;
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uint32_t ct;
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};
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struct prefix_data_t {
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struct prefix_element* vector;
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uint32_t next;
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};
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int perm_prefix_create(struct cperm_t* perm);
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int perm_prefix_get(struct cperm_t* perm, uint32_t pt, uint32_t* ct);
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int perm_prefix_next(struct cperm_t* perm, uint32_t* ct);
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int perm_prefix_destroy(struct cperm_t* perm);
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#endif /* PREFIX_H */
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