1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2006-2012 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>
void print_vector(igraph_vector_t *v, FILE *f) {
long int i;
for (i=0; i<igraph_vector_size(v); i++) {
fprintf(f, " %li", (long int) VECTOR(*v)[i]);
}
fprintf(f, "\n");
}
int main() {
igraph_t g;
igraph_vector_t v;
int ret;
igraph_vector_init(&v, 8);
VECTOR(v)[0]=0; VECTOR(v)[1]=1;
VECTOR(v)[2]=1; VECTOR(v)[3]=2;
VECTOR(v)[4]=2; VECTOR(v)[5]=3;
VECTOR(v)[6]=2; VECTOR(v)[7]=2;
igraph_create(&g, &v, 0, 1);
igraph_neighbors(&g, &v, 2, IGRAPH_OUT);
igraph_vector_sort(&v);
print_vector(&v, stdout);
igraph_neighbors(&g, &v, 2, IGRAPH_IN);
igraph_vector_sort(&v);
print_vector(&v, stdout);
igraph_neighbors(&g, &v, 2, IGRAPH_ALL);
igraph_vector_sort(&v);
print_vector(&v, stdout);
/* Errors */
igraph_set_error_handler(igraph_error_handler_ignore);
ret=igraph_neighbors(&g, &v, 2, (igraph_neimode_t)0); /* conv for c++ */
if (ret != IGRAPH_EINVMODE) {
return 1;
}
ret=igraph_neighbors(&g, &v, 4, IGRAPH_ALL);
if (ret != IGRAPH_EINVVID) {
return 2;
}
igraph_vector_destroy(&v);
igraph_destroy(&g);
return 0;
}
|
