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sequence.h
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sequence.h
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/* sequence.h -- Routines for dealing with message sequences
*
* Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Header for internal usage of index.c + programs that make raw access
* to index files */
#ifndef SEQUENCE_H
#define SEQUENCE_H
struct seq_range {
unsigned low;
unsigned high;
};
struct seqset {
struct seq_range *set;
size_t len;
size_t alloc;
unsigned current;
unsigned prev;
unsigned maxval;
int flags;
struct seqset *nextseq;
};
#define SEQ_SPARSE 1
#define SEQ_MERGE 2
extern unsigned int seq_lastnum(const char *list, const char **numstart);
/* for writing */
extern struct seqset *seqset_init(unsigned maxval, int flags);
void seqset_add(struct seqset *seq, unsigned num, int ismember);
extern struct seqset *seqset_parse(const char *sequence,
struct seqset *set,
unsigned maxval);
extern void seqset_join(struct seqset *a, const struct seqset *b);
extern void seqset_append(struct seqset **l, char *sequence, unsigned maxval);
extern int seqset_ismember(struct seqset *set, unsigned num);
extern unsigned seqset_getnext(struct seqset *set);
extern unsigned seqset_first(const struct seqset *set);
extern unsigned seqset_last(const struct seqset *set);
extern char *seqset_cstring(const struct seqset *set);
extern void seqset_free(struct seqset *set);
#endif /* SEQUENCE_H */

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