/*
Copyright (C) 2014 Abhinav Baid
Copyright (C) 2022 Daniel Schultz
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 "fmpz_vec.h"
#include "fmpz_mat.h"
void
_fmpz_mat_window_readonly_init_strip_initial_zero_rows(fmpz_mat_t A, const fmpz_mat_t B)
{
slong r = B->r;
slong c = B->c;
slong i;
for (i = 0; i < r; i++)
{
if (!_fmpz_vec_is_zero(fmpz_mat_row(B, i), c))
break;
}
fmpz_mat_window_init(A, B, i, 0, r, c);
}