Abdelrahman Said
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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igraph library.
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Copyright (C) 2007-2012 Gabor Csardi <csardi.gabor@gmail.com>
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334 Harvard street, Cambridge, MA 02139 USA
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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#include <igraph.h>
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#include <stdio.h>
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int main(void) {
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igraph_t graph;
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FILE *ifile;
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/* Initialize the library. */
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igraph_setup();
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ifile = fopen("karate.gml", "r");
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if (ifile == 0) {
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return 1;
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}
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igraph_read_graph_gml(&graph, ifile);
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fclose(ifile);
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printf("The graph is %s.\n", igraph_is_directed(&graph) ? "directed" : "undirected");
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/* Output as edge list */
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printf("\n-----------------\n");
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igraph_write_graph_edgelist(&graph, stdout);
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/* Output as GML */
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printf("\n-----------------\n");
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igraph_write_graph_gml(&graph, stdout,IGRAPH_WRITE_GML_DEFAULT_SW, 0, "");
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igraph_destroy(&graph);
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return 0;
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}
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