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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2006-2012 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>
void print_vector(igraph_vector_t *v) {
long int i, n = igraph_vector_size(v);
for (i = 0; i < n; i++) {
printf(" %li", (long int) VECTOR(*v)[i]);
}
printf("\n");
}
int main() {
igraph_t g;
igraph_integer_t result;
igraph_integer_t from, to;
igraph_vector_t path;
igraph_barabasi_game(&g, 30, /*power=*/ 1, 30, 0, 0, /*A=*/ 1,
IGRAPH_DIRECTED, IGRAPH_BARABASI_BAG,
/*start_from=*/ 0);
igraph_diameter(&g, &result, 0, 0, 0, IGRAPH_UNDIRECTED, 1);
/* printf("Diameter: %li\n", (long int) result); */
igraph_destroy(&g);
igraph_ring(&g, 10, IGRAPH_DIRECTED, 0, 0);
igraph_vector_init(&path, 0);
igraph_diameter(&g, &result, &from, &to, &path, IGRAPH_DIRECTED, 1);
printf("diameter: %li, from %li to %li\n", (long int) result,
(long int) from, (long int) to);
print_vector(&path);
igraph_vector_destroy(&path);
igraph_destroy(&g);
return 0;
}
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