1 /*
2 Copyright (C) 2011 Fredrik Johansson
3
4 This file is part of FLINT.
5
6 FLINT is free software: you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License (LGPL) as published
8 by the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version. See <https://www.gnu.org/licenses/>.
10 */
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include "flint.h"
15 #include "nmod_mat.h"
16 #include "nmod_poly.h"
17 #include "nmod_poly_mat.h"
18
19 int
main(void)20 main(void)
21 {
22 slong i;
23
24 FLINT_TEST_INIT(state);
25
26 flint_printf("neg....");
27 fflush(stdout);
28
29 /* Check evaluation homomorphism */
30 for (i = 0; i < 100 * flint_test_multiplier(); i++)
31 {
32 nmod_poly_mat_t A, B;
33 nmod_mat_t a, b, c;
34 mp_limb_t x, mod;
35 slong m, n, deg;
36
37 mod = n_randtest_prime(state, 0);
38 m = n_randint(state, 20);
39 n = n_randint(state, 20);
40 deg = 1 + n_randint(state, 10);
41
42 nmod_poly_mat_init(A, m, n, mod);
43 nmod_poly_mat_init(B, m, n, mod);
44
45 nmod_mat_init(a, m, n, mod);
46 nmod_mat_init(b, m, n, mod);
47 nmod_mat_init(c, m, n, mod);
48
49 nmod_poly_mat_randtest(A, state, deg);
50 nmod_poly_mat_neg(B, A);
51
52 x = n_randint(state, mod);
53
54 nmod_poly_mat_evaluate_nmod(a, A, x);
55 nmod_poly_mat_evaluate_nmod(b, B, x);
56 nmod_mat_neg(c, a);
57
58 if (!nmod_mat_equal(b, c))
59 {
60 flint_printf("FAIL:\n");
61 flint_printf("A:\n");
62 nmod_poly_mat_print(A, "x");
63 flint_printf("B:\n");
64 nmod_poly_mat_print(B, "x");
65 flint_printf("\n");
66 abort();
67 }
68
69 nmod_poly_mat_clear(A);
70 nmod_poly_mat_clear(B);
71
72 nmod_mat_clear(a);
73 nmod_mat_clear(b);
74 nmod_mat_clear(c);
75 }
76
77 /* Check aliasing B and A */
78 for (i = 0; i < 100 * flint_test_multiplier(); i++)
79 {
80 nmod_poly_mat_t A, B;
81 slong m, n, deg;
82 mp_limb_t mod;
83
84 mod = n_randtest_prime(state, 0);
85 m = n_randint(state, 20);
86 n = n_randint(state, 20);
87 deg = 1 + n_randint(state, 10);
88
89 nmod_poly_mat_init(A, m, n, mod);
90 nmod_poly_mat_init(B, m, n, mod);
91
92 nmod_poly_mat_randtest(A, state, deg);
93
94 nmod_poly_mat_neg(B, A);
95 nmod_poly_mat_neg(A, A);
96
97 if (!nmod_poly_mat_equal(B, A))
98 {
99 flint_printf("FAIL:\n");
100 flint_printf("A:\n");
101 nmod_poly_mat_print(A, "x");
102 flint_printf("B:\n");
103 nmod_poly_mat_print(B, "x");
104 flint_printf("\n");
105 abort();
106 }
107
108 nmod_poly_mat_clear(A);
109 nmod_poly_mat_clear(B);
110 }
111
112 FLINT_TEST_CLEANUP(state);
113
114 flint_printf("PASS\n");
115 return 0;
116 }
117