/*
Copyright (C) 2023 Albin Ahlbäck
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 "fmpz.h"
#include "fmpz_vec.h"
#include "fmpz_poly.h"
int _fmpz_poly_is_one(const fmpz *poly, slong len)
{
return (len > 0 && fmpz_is_one(poly)
&& _fmpz_vec_is_zero(poly + 1, len - 1));
}