text: ///////////////////////////////////////////////////////////////////////////////
  //
  //                          IMPORTANT NOTICE
  //
  // The following open source license statement does not apply to any
  // entity in the Exception List published by FMSoft.
  //
  // For more information, please visit:
  //
  // https://www.fmsoft.cn/exception-list
  //
  //////////////////////////////////////////////////////////////////////////////
  /* ply-bitarray.h - bitarray implementation
   *
   * Copyright (C) 2009 Charlie Brej <cbrej@cs.man.ac.uk>
   *
   * 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 2, 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, write to the Free Software
   * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   * 02111-1307, USA.
   *
   * Written by: Charlie Brej <cbrej@cs.man.ac.uk>
   */
  #ifndef PLY_ARRAY_H
  #define PLY_ARRAY_H
  
  #include <stdint.h>
  #include <stdbool.h>
  
  #define PLY_BITARRAY_BASE_SIZE 32
  #define PLY_BITARRAY_BASE_MASK (PLY_BITARRAY_BASE_SIZE-1)
  
  typedef uint32_t ply_bitarray_t;
  
  #ifndef PLY_HIDE_FUNCTION_DECLARATIONS
  #define ply_bitarray_new(size) calloc ((size + PLY_BITARRAY_BASE_SIZE - 1) / PLY_BITARRAY_BASE_SIZE, sizeof (ply_bitarray_t))
  #define ply_bitarray_free(bitarray) free (bitarray)
  #define ply_bitarray_lookup(bitarray, index) ((bitarray[index / PLY_BITARRAY_BASE_SIZE] >> (index & PLY_BITARRAY_BASE_MASK)) & 1)
  #define ply_bitarray_set(bitarray, index) (bitarray[index / PLY_BITARRAY_BASE_SIZE] |= 1 << (index & PLY_BITARRAY_BASE_MASK))
  #define ply_bitarray_clear(bitarray, index) (bitarray[index / PLY_BITARRAY_BASE_SIZE] &= ~(1 << (index & PLY_BITARRAY_BASE_MASK)))
  #define ply_bitarray_toggle(bitarray, index) (bitarray[index / PLY_BITARRAY_BASE_SIZE] ^= 1 << (index & PLY_BITARRAY_BASE_MASK))
  int ply_bitarray_count (ply_bitarray_t *bitarray,
                          int             size);
  
  #endif
  
  #endif /* PLY_ARRAY_H */
  