pqc/external/flint-2.4.3/fmpz_poly_mat/is_zero.c
2014-05-24 23:16:06 +02:00

46 lines
1.4 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2011 Fredrik Johansson
******************************************************************************/
#include <stdlib.h>
#include "flint.h"
#include "fmpz_poly.h"
#include "fmpz_poly_mat.h"
int
fmpz_poly_mat_is_zero(const fmpz_poly_mat_t A)
{
slong i, j;
if (A->r == 0 || A->c == 0)
return 1;
for (i = 0; i < A->r; i++)
for (j = 0; j < A->c; j++)
if (!fmpz_poly_is_zero(fmpz_poly_mat_entry(A, i, j)))
return 0;
return 1;
}