Files
Abdelrahman Said a11edf0c53 Add graph references
2026-06-28 13:49:01 +01:00

98 lines
3.2 KiB
C

/*
igraph library.
Copyright (C) 2010-2012 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>
#include "test_utilities.h"
static void simplify_write_destroy(igraph_t *g, igraph_attribute_combination_t *comb) {
igraph_simplify(g, /*remove_multiple=*/ true, /*remove_loops=*/ true, comb);
igraph_write_graph_graphml(g, stdout, /*prefixattr=*/ true);
igraph_attribute_combination_destroy(comb);
igraph_destroy(g);
}
static void type_test(igraph_t *g, igraph_attribute_combination_type_t type_attr) {
igraph_t g2;
igraph_attribute_combination_t comb;
igraph_copy(&g2, g);
igraph_attribute_combination(&comb,
"type", type_attr,
"", IGRAPH_ATTRIBUTE_COMBINE_IGNORE,
IGRAPH_NO_MORE_ATTRIBUTES);
simplify_write_destroy(&g2, &comb);
}
int main(void) {
igraph_t g, g2;
igraph_attribute_combination_t comb;
igraph_set_attribute_table(&igraph_cattribute_table);
igraph_small(&g, 4, IGRAPH_DIRECTED,
0, 1, 0, 1, 0, 1,
1, 2, 2, 3,
-1);
SETEAB(&g, "type", 0, 1);
SETEAB(&g, "type", 1, 1);
SETEAB(&g, "type", 2, 0);
SETEAB(&g, "type", 3, 0);
SETEAB(&g, "type", 4, 1);
/* ****************************************************** */
igraph_copy(&g2, &g);
igraph_attribute_combination(&comb,
"weight", IGRAPH_ATTRIBUTE_COMBINE_SUM,
"type", IGRAPH_ATTRIBUTE_COMBINE_FIRST,
"", IGRAPH_ATTRIBUTE_COMBINE_IGNORE,
IGRAPH_NO_MORE_ATTRIBUTES);
simplify_write_destroy(&g2, &comb);
/* ****************************************************** */
igraph_copy(&g2, &g);
igraph_attribute_combination(&comb,
"", IGRAPH_ATTRIBUTE_COMBINE_LAST,
IGRAPH_NO_MORE_ATTRIBUTES);
simplify_write_destroy(&g2, &comb);
/* ****************************************************** */
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_LAST);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_SUM);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_PROD);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_MIN);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_MAX);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_MEAN);
type_test(&g, IGRAPH_ATTRIBUTE_COMBINE_MEDIAN);
igraph_destroy(&g);
VERIFY_FINALLY_STACK();
return 0;
}