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agent_compositor_test/references/igraph-1.0.1/tests/unit/levc-stress.c
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Abdelrahman Said a11edf0c53 Add graph references
2026-06-28 13:49:01 +01:00

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C

/* vim:set sw=4 ts=4 sts=4 et: */
/*
igraph library.
Copyright (C) 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
*/
/* This is a test for bug #1002140, reported by Luiz Fernando
Bittencourt: https://bugs.launchpad.net/igraph/+bug/1002140 */
#include <igraph.h>
#include "test_utilities.h"
int main(void) {
igraph_rng_seed(igraph_rng_default(), 42); /* make tests deterministic */
for (int k = 0; k < 20; k++) {
igraph_t g;
igraph_matrix_int_t merges;
igraph_vector_int_t membership;
igraph_arpack_options_t options;
double modularity;
igraph_vector_int_t history;
FILE *DLFile = fopen("input.dl", "r");
IGRAPH_ASSERT(DLFile != NULL);
igraph_read_graph_dl(&g, DLFile, IGRAPH_UNDIRECTED);
fclose(DLFile);
igraph_matrix_int_init(&merges, 0, 0);
igraph_vector_int_init(&membership, 0);
igraph_vector_int_init(&history, 0);
igraph_arpack_options_init(&options);
igraph_community_leading_eigenvector(&g, /*weights=*/ NULL, &merges,
&membership, igraph_vcount(&g),
&options, &modularity,
/*start=*/ 0, /*eigenvalues=*/ NULL,
/*eigenvectors=*/ NULL, &history,
/*callback=*/ NULL,
/*callback_extra=*/ NULL);
igraph_vector_int_destroy(&history);
igraph_vector_int_destroy(&membership);
igraph_matrix_int_destroy(&merges);
igraph_destroy(&g);
}
VERIFY_FINALLY_STACK();
return 0;
}