/*
Copyright (C) 2011 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 "nmod_vec.h"
#include "nmod_mat.h"
int
nmod_mat_is_zero(const nmod_mat_t mat)
{
slong j;
if (mat->r == 0 || mat->c == 0)
return 1;
for (j = 0; j < mat->r; j++)
{
if (!_nmod_vec_is_zero(nmod_mat_entry_ptr(mat, j, 0), mat->c))
return 0;
}
return 1;
}