bitvect.h

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/* BLURB gpl
 
                           Coda File System
                              Release 6
 
          Copyright (c) 1987-2003 Carnegie Mellon University
                  Additional copyrights listed below
 
This  code  is  distributed "AS IS" without warranty of any kind under
the terms of the GNU General Public Licence Version 2, as shown in the
file  LICENSE.  The  technical and financial  contributors to Coda are
listed in the file CREDITS.
 
                        Additional copyrights
                           none currently
 
#*/
 
/* this code owes several ideas to Hanson's C Interfaces and Implementations,
 * Addison-Wesley, 1997
 */
 
#ifndef BITVECT_INCLUDED
#define BITVECT_INCLUDED
 
typedef struct Bitv_s *Bitv;
 
Bitv Bitv_new(int length);
void Bitv_free(Bitv *b);
int Bitv_length(Bitv b);
int Bitv_count(Bitv b); /* how many bits are set to 1 */
int Bitv_put(Bitv b, int n, int bit); /* set n to bit, return previous value */
void Bitv_clear(Bitv b, int loc);
void Bitv_set(Bitv b, int loc);
int Bitv_getfree(Bitv b); /* get first 0 index and set it to 1 */
void Bitv_print(Bitv b, FILE *fd);
 
#endif