| /* |
| * Copyright (c) 2001-2002, David Janssens |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __TGT_H |
| #define __TGT_H |
| |
| typedef struct tgt_node { |
| struct tgt_node *parent; |
| int value; |
| int low; |
| int known; |
| } tgt_node_t; |
| |
| typedef struct { |
| int numleafsh; |
| int numleafsv; |
| int numnodes; |
| tgt_node_t *nodes; |
| } tgt_tree_t; |
| |
| |
| |
| /* |
| * Reset a tag-tree (set all leaves to 0) |
| * tree: tag-tree to reset |
| */ |
| void tgt_reset(tgt_tree_t * tree); |
| |
| /* |
| * Create a tag-tree |
| * numleafsh: width of the array of leafs of the tree |
| * numleafsv: height of the array of leafs of the tree |
| */ |
| tgt_tree_t *tgt_create(int numleafsh, int numleafsv); |
| |
| /* |
| * Destroy a tag-tree, liberating memory |
| * tree: tag-tree to destroy |
| */ |
| void tgt_destroy(tgt_tree_t * tree); |
| |
| /* |
| * Set the value of a leaf of a tag-tree |
| * tree: tag-tree to modify |
| * leafno: number that identifies the leaf to modify |
| * value: new value of the leaf |
| */ |
| void tgt_setvalue(tgt_tree_t * tree, int leafno, int value); |
| |
| /* |
| * Encode the value of a leaf of the tag-tree up to a given threshold |
| * leafno: number that identifies the leaf to encode |
| * threshold: threshold to use when encoding value of the leaf |
| */ |
| void tgt_encode(tgt_tree_t * tree, int leafno, int threshold); |
| |
| /* |
| * Decode the value of a leaf of the tag-tree up to a given threshold |
| * leafno: number that identifies the leaf to decode |
| * threshold: threshold to use when decoding value of the leaf |
| */ |
| int tgt_decode(tgt_tree_t * tree, int leafno, int threshold); |
| |
| #endif |