1 /*
2 IGraph library.
3 Copyright (C) 2021 The igraph development team <igraph@igraph.org>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>.
17 */
18
19 #include <igraph.h>
20 #include "test_utilities.inc"
21
main()22 int main() {
23 igraph_t g_0, g_1, g_simple, g_ml;
24 igraph_real_t result;
25
26 igraph_rng_seed(igraph_rng_default(), 42);
27
28 igraph_small(&g_0, 0, 0, -1);
29 igraph_small(&g_1, 1, 0, -1);
30 igraph_small(&g_simple, 6, 1, 0,1, 0,2, 1,2, 1,3, 2,3, 3,4, -1);
31 igraph_small(&g_ml, 6, 0, 0,1, 0,2, 1,1, 1,2, 1,3, 2,1, 2,3, 3,4, 3,4, -1);
32
33 igraph_set_error_handler(igraph_error_handler_ignore);
34
35 printf("No vertices, transitivity zero:\n");
36 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_0, &result, IGRAPH_TRANSITIVITY_ZERO) == IGRAPH_SUCCESS);
37 print_real(stdout, result, "%g");
38 printf("\n");
39
40 printf("No vertices, transitivity NaN:\n");
41 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_0, &result, IGRAPH_TRANSITIVITY_NAN) == IGRAPH_SUCCESS);
42 print_real(stdout, result, "%g");
43 printf("\n");
44
45 printf("One vertex, transitivity zero:\n");
46 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_1, &result, IGRAPH_TRANSITIVITY_ZERO) == IGRAPH_SUCCESS);
47 print_real(stdout, result, "%g");
48 printf("\n");
49
50 printf("One vertex, transitivity NaN:\n");
51 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_1, &result, IGRAPH_TRANSITIVITY_NAN) == IGRAPH_SUCCESS);
52 print_real(stdout, result, "%g");
53 printf("\n");
54
55 printf("Simple graph:\n");
56 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_simple, &result, IGRAPH_TRANSITIVITY_ZERO) == IGRAPH_SUCCESS);
57 print_real(stdout, result, "%g");
58 printf("\n");
59
60 printf("Multigraph:\n");
61 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_ml, &result, IGRAPH_TRANSITIVITY_ZERO) == IGRAPH_SUCCESS);
62 print_real(stdout, result, "%g");
63 printf("\n");
64
65 printf("Multigraph, TRANSITIVITY_NAN:\n");
66 IGRAPH_ASSERT(igraph_transitivity_avglocal_undirected(&g_ml, &result, IGRAPH_TRANSITIVITY_NAN) == IGRAPH_SUCCESS);
67 print_real(stdout, result, "%g");
68 printf("\n");
69
70 igraph_destroy(&g_0);
71 igraph_destroy(&g_1);
72 igraph_destroy(&g_simple);
73 igraph_destroy(&g_ml);
74
75 VERIFY_FINALLY_STACK();
76 return 0;
77 }
78