48 lines
1.5 KiB
C
48 lines
1.5 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 "flint.h"
|
|
#include "nmod_poly.h"
|
|
#include "nmod_poly_mat.h"
|
|
|
|
|
|
slong
|
|
nmod_poly_mat_rank(const nmod_poly_mat_t A)
|
|
{
|
|
nmod_poly_mat_t tmp;
|
|
nmod_poly_t den;
|
|
slong rank;
|
|
|
|
if (nmod_poly_mat_is_empty(A))
|
|
return 0;
|
|
|
|
nmod_poly_mat_init_set(tmp, A);
|
|
nmod_poly_init(den, nmod_poly_mat_modulus(A));
|
|
rank = nmod_poly_mat_fflu(tmp, den, NULL, tmp, 0);
|
|
nmod_poly_mat_clear(tmp);
|
|
nmod_poly_clear(den);
|
|
return rank;
|
|
}
|