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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
IGraph library.
Copyright (C) 2021 The igraph development team <igraph@igraph.org>
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, see <https://www.gnu.org/licenses/>.
*/
#include <igraph.h>
#include "test_utilities.h"
void create_test_matrix(
igraph_sparsemat_t* spmat,
igraph_sparsemat_t* spmat_comp,
igraph_bool_t use_zero_col_row
) {
igraph_sparsemat_init(spmat, 3, 3, /*nzmax*/7);
igraph_sparsemat_entry(spmat, 0, 0, 6);
igraph_sparsemat_entry(spmat, 2, 2, 7);
if (!use_zero_col_row) {
igraph_sparsemat_entry(spmat, 0, 1, 2);
igraph_sparsemat_entry(spmat, 1, 0, 4);
igraph_sparsemat_entry(spmat, 1, 1, 6);
igraph_sparsemat_entry(spmat, 2, 1, 2);
igraph_sparsemat_entry(spmat, 1, 2, -14);
}
igraph_sparsemat_compress(spmat, spmat_comp);
}
int main(void) {
igraph_sparsemat_t spmat;
igraph_sparsemat_t spmat_comp;
printf("0x0 matrix.\n");
igraph_sparsemat_init(&spmat, 0, 0, /*nzmax*/0);
igraph_sparsemat_compress(&spmat, &spmat_comp);
IGRAPH_ASSERT(igraph_sparsemat_normalize_rows(&spmat_comp, /* allow_zero = */ 1) == IGRAPH_SUCCESS);
IGRAPH_ASSERT(igraph_sparsemat_normalize_cols(&spmat_comp, /* allow_zero = */ 1) == IGRAPH_SUCCESS);
/* Normalization should succeed for an empty matrix even if allow_zero = 0
* because technically there is no 0/0 division anywhere */
IGRAPH_ASSERT(igraph_sparsemat_normalize_rows(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_SUCCESS);
IGRAPH_ASSERT(igraph_sparsemat_normalize_cols(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_SUCCESS);
igraph_sparsemat_destroy(&spmat_comp);
igraph_sparsemat_destroy(&spmat);
printf("\n");
printf("3x3 matrix without zero rows and columns, row-wise normalization.\n");
create_test_matrix(&spmat, &spmat_comp, /* use_zero_col_row = */ 0);
IGRAPH_ASSERT(igraph_sparsemat_normalize_rows(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_SUCCESS);
igraph_sparsemat_print(&spmat_comp, stdout);
igraph_sparsemat_destroy(&spmat_comp);
igraph_sparsemat_destroy(&spmat);
igraph_set_error_handler(igraph_error_handler_ignore);
printf("\n");
printf("3x3 matrix without zero rows and columns, column-wise normalization.\n");
create_test_matrix(&spmat, &spmat_comp, /* use_zero_col_row = */ 0);
IGRAPH_ASSERT(igraph_sparsemat_normalize_cols(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_SUCCESS);
igraph_sparsemat_print(&spmat_comp, stdout);
igraph_sparsemat_destroy(&spmat_comp);
igraph_sparsemat_destroy(&spmat);
printf("\n");
printf("3x3 matrix with zero rows and columns, row-wise normalization.\n");
create_test_matrix(&spmat, &spmat_comp, /* use_zero_col_row = */ 1);
IGRAPH_ASSERT(igraph_sparsemat_normalize_rows(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_EINVAL);
IGRAPH_ASSERT(igraph_sparsemat_normalize_rows(&spmat_comp, /* allow_zero = */ 1) == IGRAPH_SUCCESS);
igraph_sparsemat_print(&spmat_comp, stdout);
igraph_sparsemat_destroy(&spmat_comp);
igraph_sparsemat_destroy(&spmat);
printf("\n");
printf("3x3 matrix with zero rows and columns, column-wise normalization.\n");
create_test_matrix(&spmat, &spmat_comp, /* use_zero_col_row = */ 1);
IGRAPH_ASSERT(igraph_sparsemat_normalize_cols(&spmat_comp, /* allow_zero = */ 0) == IGRAPH_EINVAL);
IGRAPH_ASSERT(igraph_sparsemat_normalize_cols(&spmat_comp, /* allow_zero = */ 1) == IGRAPH_SUCCESS);
igraph_sparsemat_print(&spmat_comp, stdout);
igraph_sparsemat_destroy(&spmat_comp);
igraph_sparsemat_destroy(&spmat);
printf("\n");
printf("uncompressed matrix.\n");
igraph_sparsemat_init(&spmat, 0, 0, /*nzmax*/0);
IGRAPH_ASSERT(igraph_sparsemat_droptol(&spmat, 10) == IGRAPH_EINVAL);
igraph_sparsemat_destroy(&spmat);
VERIFY_FINALLY_STACK();
return 0;
}
|
