/* -*- mode: C -*-  */
/*
   IGraph library.
   Copyright (C) 2009-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard street, Cambridge, MA 02139 USA

   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 of the License, 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.,  51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301 USA

*/

#ifndef IGRAPH_OPERATORS_H
#define IGRAPH_OPERATORS_H

#include "igraph_decls.h"
#include "igraph_constants.h"
#include "igraph_types.h"
#include "igraph_datatype.h"
#include "igraph_vector_ptr.h"

__BEGIN_DECLS

/* -------------------------------------------------- */
/* Graph operators                                    */
/* -------------------------------------------------- */

DECLDIR int igraph_disjoint_union(igraph_t *res,
                                  const igraph_t *left, const igraph_t *right);
DECLDIR int igraph_disjoint_union_many(igraph_t *res,
                                       const igraph_vector_ptr_t *graphs);
DECLDIR int igraph_union(igraph_t *res, const igraph_t *left, const igraph_t *right,
                         igraph_vector_t *edge_map1, igraph_vector_t *edge_map2);
DECLDIR int igraph_union_many(igraph_t *res, const igraph_vector_ptr_t *graphs,
                              igraph_vector_ptr_t *edgemaps);
DECLDIR int igraph_intersection(igraph_t *res,
                                const igraph_t *left, const igraph_t *right,
                                igraph_vector_t *edge_map1,
                                igraph_vector_t *edge_map2);
DECLDIR int igraph_intersection_many(igraph_t *res,
                                     const igraph_vector_ptr_t *graphs,
                                     igraph_vector_ptr_t *edgemaps);
DECLDIR int igraph_difference(igraph_t *res,
                              const igraph_t *orig, const igraph_t *sub);
DECLDIR int igraph_complementer(igraph_t *res, const igraph_t *graph,
                                igraph_bool_t loops);
DECLDIR int igraph_compose(igraph_t *res, const igraph_t *g1, const igraph_t *g2,
                           igraph_vector_t *edge_map1, igraph_vector_t *edge_map2);

__END_DECLS

#endif