/* -*- 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 vector_print(igraph_vector_t *v) {
  long int i;
  for (i=0; i<igraph_vector_size(v); i++) {
    printf(" %li", (long int) VECTOR(*v)[i]);
  }
  printf("\n");
}

int main() {

  igraph_t g;
  igraph_vector_t vids, layers, parents;

  igraph_ring(&g, 10, IGRAPH_UNDIRECTED, 0, 0);
  igraph_vector_init(&vids, 0);
  igraph_vector_init(&layers, 0);
  igraph_vector_init(&parents, 0);
  igraph_i_bfs(&g, 0, IGRAPH_ALL, &vids, &layers, &parents);
  vector_print(&vids);
  vector_print(&layers);
  vector_print(&parents);
  igraph_destroy(&g);  

  igraph_tree(&g, 20, 2, IGRAPH_TREE_UNDIRECTED);
  igraph_i_bfs(&g, 0, IGRAPH_ALL, &vids, &layers, &parents);
  vector_print(&vids);
  vector_print(&layers);
  vector_print(&parents);
  igraph_destroy(&g);  
  
  igraph_vector_destroy(&vids);
  igraph_vector_destroy(&layers);
  igraph_vector_destroy(&parents);

  return 0;
}
