bitarray.h

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/*
 * Copyright (C) 2012 Sistemas Operativos - UTN FRBA. All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef BITARRAY_H_
#define BITARRAY_H_
 
    #include <stdbool.h>
    #include <limits.h>
    #include <unistd.h>
 
    /* position of bit within character */
    #define BIT_CHAR(bit)         ((bit) / CHAR_BIT)
 
    typedef enum {
        LSB_FIRST, 
        MSB_FIRST 
    } bit_numbering_t;
 
    typedef struct {
        char *bitarray;
        size_t size;
        bit_numbering_t mode;
    } t_bitarray;
 
    t_bitarray  *bitarray_create(char *bitarray, size_t size) __attribute__((deprecated));
 
    t_bitarray  *bitarray_create_with_mode(char *bitarray, size_t size, bit_numbering_t mode);
 
    bool         bitarray_test_bit(t_bitarray*, off_t bit_index);
 
    void         bitarray_set_bit(t_bitarray*, off_t bit_index);
 
    void         bitarray_clean_bit(t_bitarray*, off_t bit_index);
 
    size_t       bitarray_get_max_bit(t_bitarray*);
 
    void         bitarray_destroy(t_bitarray*);
 
#endif /* BITARRAY_H_ */