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/*=============================================================================
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) 2010 Fredrik Johansson
******************************************************************************/
#include "fmpz_mat.h"
slong
fmpz_mat_max_bits(const fmpz_mat_t mat)
{
slong i;
slong bits, row_bits, sign;
sign = 1;
bits = 0;
if (mat->r == 0 || mat->c == 0)
return 0;
for (i = 0; i < mat->r; i++)
{
row_bits = _fmpz_vec_max_bits(mat->rows[i], mat->c);
if (row_bits < 0)
{
row_bits = -row_bits;
sign = -1;
}
bits = FLINT_MAX(bits, row_bits);
}
return bits * sign;
}
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