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/*
Copyright (C) 2022 Fredrik Johansson
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 "gr_mat.h"
TEST_FUNCTION_START(gr_mat_invert_rows_cols, state)
{
slong iter;
for (iter = 0; iter < 100; iter++)
{
slong m, n, i, j;
gr_ctx_t ctx;
gr_mat_t A;
gr_mat_t B;
gr_ctx_init_random(ctx, state);
m = n_randint(state, 20);
n = n_randint(state, 20);
gr_mat_init(A, m, n, ctx);
gr_mat_init(B, m, n, ctx);
if (gr_mat_randtest(A, state, ctx) == GR_SUCCESS &&
gr_mat_set(B, A, ctx) == GR_SUCCESS)
{
GR_MUST_SUCCEED(gr_mat_invert_rows(A, NULL, ctx));
GR_MUST_SUCCEED(gr_mat_invert_cols(A, NULL, ctx));
for (i = 0; i < A->r; i++)
{
for (j = 0; j < A->c; j++)
{
if (gr_equal(gr_mat_entry_ptr(B, i, j, ctx), gr_mat_entry_ptr(A, A->r - i - 1, A->c - j - 1, ctx), ctx) == T_FALSE)
{
flint_printf("FAIL: B != A\n");
flint_printf("A:\n");
gr_mat_print(A, ctx);
flint_printf("B:\n");
gr_mat_print(B, ctx);
fflush(stdout);
flint_abort();
}
}
}
}
gr_mat_clear(A, ctx);
gr_mat_clear(B, ctx);
gr_ctx_clear(ctx);
}
TEST_FUNCTION_END(state);
}