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/*
Copyright (C) 2014 Ashish Kedia
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "test_helpers.h"
#include "nmod_mat.h"
TEST_FUNCTION_START(nmod_mat_pow, state)
{
slong i;
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
nmod_mat_t A, B, C, D;
ulong mod;
slong m, j;
ulong exp;
mod = n_randtest_not_zero(state);
m = n_randint(state, 20);
exp = n_randint(state, 50);
nmod_mat_init(A, m, m, mod);
nmod_mat_init(B, m, m, mod);
nmod_mat_init(C, m, m, mod);
nmod_mat_init(D, m, m, mod);
nmod_mat_randtest(A, state);
nmod_mat_pow(B, A, exp);
nmod_mat_one(C);
for(j = 1; j <= exp; j++)
{
nmod_mat_mul(D, C, A);
nmod_mat_swap(D, C);
}
nmod_mat_pow(A, A, exp);
if (!(nmod_mat_equal(C, B) && nmod_mat_equal(C, A)))
TEST_FUNCTION_FAIL(
"Results not equal\n"
"A = %{nmod_mat}\n"
"B = %{nmod_mat}\n"
"C = %{nmod_mat}\n",
A, B, C);
nmod_mat_clear(A);
nmod_mat_clear(B);
nmod_mat_clear(C);
nmod_mat_clear(D);
}
TEST_FUNCTION_END(state);
}