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/*
Copyright (C) 2019 Tommy Hofmann
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 "fmpq.h"
#include "fmpq_mat.h"
TEST_FUNCTION_START(fmpq_mat_invert_rows_cols, state)
{
slong n, rep;
/* Rectangular inversion of rows and cols */
for (rep = 0; rep < 100 * flint_test_multiplier(); rep++)
{
slong i, j;
fmpq_mat_t A, B;
n = n_randint(state, 10);
fmpq_mat_init(A, n, n);
fmpq_mat_init(B, n, n);
fmpq_mat_randtest(A, state, 1+n_randint(state, 3));
fmpq_mat_set(B, A);
fmpq_mat_invert_rows(A, NULL);
fmpq_mat_invert_cols(A, NULL);
for (i = 0; i < A->r; i++)
{
for (j =0; j < A->c; j++)
{
if (fmpq_cmp(fmpq_mat_entry(B, i, j), fmpq_mat_entry(A, A->r - i - 1, A->c - j - 1)) != 0)
{
flint_printf("FAIL: B != A\n");
flint_printf("A:\n");
fmpq_mat_print(A);
flint_printf("B:\n");
fmpq_mat_print(B);
fflush(stdout);
flint_abort();
}
}
}
fmpq_mat_clear(A);
fmpq_mat_clear(B);
}
TEST_FUNCTION_END(state);
}