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/* -*- mode: C -*- */
/*
IGraph R package.
Copyright (C) 2005-2012 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() {
igraph_t g;
FILE *input;
/* Without names and weights */
input=fopen("igraph_read_graph_lgl-1.lgl", "r");
if (!input) {
return 1;
}
igraph_read_graph_lgl(&g, input, 0, IGRAPH_ADD_WEIGHTS_NO, 1);
fclose(input);
if (!igraph_is_directed(&g)) {
return 2;
}
igraph_write_graph_edgelist(&g, stdout);
igraph_destroy(&g);
/* With names and weights */
input=fopen("igraph_read_graph_lgl-2.lgl", "r");
if (!input) {
return 3;
}
igraph_read_graph_lgl(&g, input, 0, IGRAPH_ADD_WEIGHTS_NO, 1);
fclose(input);
if (!igraph_is_directed(&g)) {
return 4;
}
igraph_write_graph_ncol(&g, stdout, 0, 0);
igraph_destroy(&g);
/* Same graph, but forcing undirected mode */
input=fopen("igraph_read_graph_lgl-2.lgl", "r");
igraph_read_graph_lgl(&g, input, 0, IGRAPH_ADD_WEIGHTS_NO, 0);
fclose(input);
if (igraph_is_directed(&g)) {
return 5;
}
igraph_write_graph_ncol(&g, stdout, 0, 0);
igraph_destroy(&g);
/* Erroneous LGL file (empty vertex name) */
input=fopen("igraph_read_graph_lgl-3.lgl", "r");
if (!input) {
return 6;
}
igraph_set_error_handler(igraph_error_handler_ignore);
if (igraph_read_graph_lgl(&g, input, 0, IGRAPH_ADD_WEIGHTS_NO, 1) !=
IGRAPH_PARSEERROR) {
return 7;
}
fclose(input);
return 0;
}
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