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/*
* Copyright 2010 Adrian Thurston <thurston@complang.org>
*/
/* This file is part of Colm.
*
* Colm 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 of the License, or
* (at your option) any later version.
*
* Colm 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 Colm; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _MAP_H
#define _MAP_H
#if defined(__cplusplus)
extern "C" {
#endif
typedef struct _MapEl
{
/* Must overlay Kid. */
Tree *tree;
struct _MapEl *next;
struct _MapEl *prev;
struct _MapEl *left, *right, *parent;
long height;
Tree *key;
} MapEl;
typedef struct _Map
{
/* Must overlay Tree. */
short id;
unsigned short flags;
long refs;
MapEl *head;
MapEl *tail;
MapEl *root;
long treeSize;
GenericInfo *genericInfo;
} Map;
void mapListAbandon( Map *map );
void mapListAddBefore( Map *map, MapEl *next_el, MapEl *new_el );
void mapListAddAfter( Map *map, MapEl *prev_el, MapEl *new_el );
MapEl *mapListDetach( Map *map, MapEl *el );
void mapAttachRebal( Map *map, MapEl *element, MapEl *parentEl, MapEl *lastLess );
void mapDeleteChildrenOf( Map *map, MapEl *element );
void mapEmpty( Map *map );
MapEl *mapRebalance( Map *map, MapEl *n );
void mapRecalcHeights( Map *map, MapEl *element );
MapEl *mapFindFirstUnbalGP( Map *map, MapEl *element );
MapEl *mapFindFirstUnbalEl( Map *map, MapEl *element );
void mapRemoveEl( Map *map, MapEl *element, MapEl *filler );
void mapReplaceEl( Map *map, MapEl *element, MapEl *replacement );
MapEl *mapInsertEl( Program *prg, Map *map, MapEl *element, MapEl **lastFound );
MapEl *mapInsertKey( Program *prg, Map *map, Tree *key, MapEl **lastFound );
MapEl *mapImplFind( Program *prg, Map *map, Tree *key );
MapEl *mapDetachByKey( Program *prg, Map *map, Tree *key );
MapEl *mapDetach( Program *prg, Map *map, MapEl *element );
MapEl *mapCopyBranch( Program *prg, Map *map, MapEl *el, Kid *oldNextDown, Kid **newNextDown );
long cmpTree( Program *prg, const Tree *tree1, const Tree *tree2 );
void mapImplRemoveEl( Program *prg, Map *map, MapEl *element );
int mapImplRemoveKey( Program *prg, Map *map, Tree *key );
/*
* Iterators.
*/
void initTreeIter( TreeIter *treeIter, const Ref *rootRef, int searchId, Tree **stackRoot );
void initRevTreeIter( RevTreeIter *revTriter, const Ref *rootRef,
int searchId, Tree **stackRoot, int children );
void initUserIter( UserIter *userIter, Tree **stackRoot, long argSize, long searchId );
Tree *mapFind( Program *prg, Map *map, Tree *key );
long mapLength( Map *map );
Tree *mapUnstore( Program *prg, Map *map, Tree *key, Tree *existing );
int mapInsert( Program *prg, Map *map, Tree *key, Tree *element );
void mapUnremove( Program *prg, Map *map, Tree *key, Tree *element );
Tree *mapUninsert( Program *prg, Map *map, Tree *key );
Tree *mapStore( Program *prg, Map *map, Tree *key, Tree *element );
#if defined(__cplusplus)
}
#endif
#endif
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