src/networks/direct_connect/che3_c.h

   1 /* rewrite in C and caml stubs by b8_bavard (2002) */
   2 /* rewrite to class without glib by Mathias Küster (2002) */
   3
   4 /* DCTC - a Direct Connect text clone for Linux
   5  * Copyright (C) 2001 Eric Prevoteau
   6  *
   7  * he3.c: Copyright (C) Eric Prevoteau <www@ac2i.tzo.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22  */
  23
  24 #ifndef __HE3_H__
  25 #define __HE3_H__
  26
  27 typedef struct hufnode
  28 {
  29         unsigned long occur;
  30         struct hufnode *left,*right;            /* son nodes (left and right are both either not null or either null) */
  31         unsigned char val;                                      /* if left&right!=NULL, val is the encoded character, else, it has no usage */
  32 } HUFNODE;
  33
  34 typedef struct
  35 {
  36         unsigned int bits_len;                          /* number of bits in the bitfield used to encode the value */
  37         unsigned long bits;                                     /* bitfield containing the encoding pattern */
  38                                                                                                 /* a N bits_len pattern is stored inside bits from bit N-1 to bit 0 */
  39 } HUFENCODE;
  40
  41 #endif