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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2006 Gabor Csardi <csardi@rmki.kfki.hu>
MTA RMKI, Konkoly-Thege Miklos st. 29-33, Budapest 1121, Hungary
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;
int ret;
/* empty directed graph, zero vertices */
igraph_empty(&g, 0, 1);
if (igraph_vcount(&g) != 0) {
return 1;
}
if (igraph_ecount(&g) != 0) {
return 2;
}
igraph_destroy(&g);
/* empty undirected graph, zero vertices */
igraph_empty(&g, 0, 0);
if (igraph_vcount(&g) != 0) {
return 3;
}
if (igraph_ecount(&g) != 0) {
return 4;
}
igraph_destroy(&g);
/* empty directed graph, 20 vertices */
igraph_empty(&g, 20, 1);
if (igraph_vcount(&g) != 20) {
return 5;
}
if (igraph_ecount(&g) != 0) {
return 6;
}
igraph_destroy(&g);
/* empty undirected graph, 30 vertices */
igraph_empty(&g, 30, 0);
if (igraph_vcount(&g) != 30) {
return 7;
}
if (igraph_ecount(&g) != 0) {
return 8;
}
igraph_destroy(&g);
/* error: negative number of vertices */
igraph_set_error_handler(igraph_error_handler_ignore);
ret=igraph_empty(&g, -1, 0);
if (ret != IGRAPH_EINVAL) {
return 9;
}
return 0;
}
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