/*
Copyright (C) 2021 Daniel Schultz
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_mod.h"
#include "fmpz_mod_poly.h"
int fmpz_mod_poly_is_canonical(const fmpz_mod_poly_t A, const fmpz_mod_ctx_t ctx)
{
slong i;
if (A->length < 0)
return 0;
for (i = 0; i < A->length; i++)
{
if (!fmpz_mod_is_canonical(A->coeffs + i, ctx))
return 0;
if (fmpz_is_zero(A->coeffs + i) && i + 1 == A->length)
return 0;
}
return 1;
}