46 lines
1.4 KiB
C
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) 2010, 2011 Sebastian Pancratz
|
||
|
|
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#include "fmpz_poly_q.h"
|
||
|
|
|
||
|
|
int fmpz_poly_q_is_canonical(const fmpz_poly_q_t op)
|
||
|
|
{
|
||
|
|
int ans;
|
||
|
|
fmpz_poly_t t;
|
||
|
|
|
||
|
|
if (fmpz_poly_is_zero(op->den))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (fmpz_sgn(fmpz_poly_lead(op->den)) < 0)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
fmpz_poly_init(t);
|
||
|
|
fmpz_poly_gcd(t, op->num, op->den);
|
||
|
|
ans = fmpz_poly_is_one(t);
|
||
|
|
fmpz_poly_clear(t);
|
||
|
|
return ans;
|
||
|
|
}
|
||
|
|
|