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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2007-2012 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
*/
#include <igraph.h>
#include <stdio.h>
int main(void) {
igraph_t graph;
FILE *ifile;
ifile = fopen("karate.gml", "r");
if (ifile == 0) {
return 1;
}
igraph_read_graph_gml(&graph, ifile);
fclose(ifile);
printf("The graph is %s.\n", igraph_is_directed(&graph) ? "directed" : "undirected");
/* Output as edge list */
printf("\n-----------------\n");
igraph_write_graph_edgelist(&graph, stdout);
/* Output as GML */
printf("\n-----------------\n");
igraph_write_graph_gml(&graph, stdout,IGRAPH_WRITE_GML_DEFAULT_SW, 0, "");
igraph_destroy(&graph);
return 0;
}
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