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/*
Copyright (C) 2010 William Hart
Copyright (C) 2014 Abhinav Baid
Copyright (C) 2015 Elena Sergeicheva
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_window_init_clear, state)
{
int i;
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpq_mat_t a, w;
slong j, k, r1, r2, c1, c2;
slong rows = n_randint(state, 10);
slong cols = n_randint(state, 10);
fmpq_mat_init(a, rows, cols);
fmpq_mat_randtest(a, state, n_randint(state, 200) + 1);
r2 = n_randint(state, rows + 1);
c2 = n_randint(state, cols + 1);
if (r2)
r1 = n_randint(state, r2);
else
r1 = 0;
if (c2)
c1 = n_randint(state, c2);
else
c1 = 0;
fmpq_mat_window_init(w, a, r1, c1, r2, c2);
for (j = 0; j < r2 - r1; j++)
for (k = 0; k < c2 - c1; k++)
fmpq_zero(fmpq_mat_entry(w, j, k));
fmpq_mat_window_clear(w);
fmpq_mat_clear(a);
}
TEST_FUNCTION_END(state);
}