/*
   igraph library.
   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard st, 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

*/

#include <igraph.h>

int main(void) {
    igraph_t g;
    igraph_int_t i;
    igraph_int_t size;

    /* Initialize the library. */
    igraph_setup();

    /* DIRECTED */

    igraph_star(&g, 10, IGRAPH_STAR_OUT, 0);

    for (i = 0; i < 100; i++) {
        igraph_es_t es;
        igraph_eit_t it;
        igraph_es_pairs_small(&es, IGRAPH_DIRECTED,
                              0, 1, 0, 2, 0, 5, 0, 2, 0, 3, 0, 4, 0, 7, 0, 9, -1);
        igraph_eit_create(&g, es, &it);
        igraph_es_size(&g, &es, &size);
        IGRAPH_EIT_RESET(it);
        while (!IGRAPH_EIT_END(it)) {
            (void) IGRAPH_EIT_GET(it);
            IGRAPH_EIT_NEXT(it);
            size--;
        }
        if (size != 0) {
            return 1;
        }
        igraph_eit_destroy(&it);
        igraph_es_destroy(&es);
    }

    igraph_destroy(&g);

    /* UNDIRECTED */

    igraph_star(&g, 10, IGRAPH_STAR_UNDIRECTED, 0);

    for (i = 0; i < 100; i++) {
        igraph_es_t es;
        igraph_eit_t it;
        igraph_es_pairs_small(&es, IGRAPH_DIRECTED,
                              0, 1, 2, 0, 5, 0, 0, 2, 3, 0, 0, 4, 7, 0, 0, 9, -1);
        igraph_eit_create(&g, es, &it);
        IGRAPH_EIT_RESET(it);
        while (!IGRAPH_EIT_END(it)) {
            (void) IGRAPH_EIT_GET(it);
            IGRAPH_EIT_NEXT(it);
        }
        igraph_eit_destroy(&it);
        igraph_es_destroy(&es);
    }

    igraph_destroy(&g);

    return 0;
}
