#ifndef GRAPH_EXTENSIONS_H
#define GRAPH_EXTENSIONS_H

/*
Copyright (c) 1997-2015, John M. Boyer
All rights reserved.
See the LICENSE.TXT file for licensing information.
*/

#ifdef __cplusplus
extern "C" {
#endif

#include "graphStructures.h"

int gp_AddExtension(graphP theGraph,
                    int  *pModuleID,
                    void *context,
                    void *(*dupContext)(void *, void *),
                    void (*freeContext)(void *),
                    graphFunctionTableP overloadTable);

int gp_FindExtension(graphP theGraph, int moduleID, void **pContext);
void *gp_GetExtension(graphP theGraph, int moduleID);

int gp_RemoveExtension(graphP theGraph, int moduleID);

int gp_CopyExtensions(graphP dstGraph, graphP srcGraph);

void gp_FreeExtensions(graphP theGraph);

#ifdef __cplusplus
}
#endif

#endif
