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/*
Copyright (C) 2008, 2009 William Hart
Copyright (C) 2010, 2012 Sebastian Pancratz
Copyright (C) 2026 Fredrik Johansson
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_poly.h"
void
_fmpz_poly_mul_KS(fmpz * res, const fmpz * poly1, slong len1,
const fmpz * poly2, slong len2)
{
_fmpz_poly_mulmid_KS(res, poly1, len1, poly2, len2, 0, len1 + len2 - 1);
}
void
fmpz_poly_mul_KS(fmpz_poly_t res,
const fmpz_poly_t poly1, const fmpz_poly_t poly2)
{
const slong len1 = poly1->length;
const slong len2 = poly2->length;
const slong rlen = len1 + len2 - 1;
if (len1 == 0 || len2 == 0)
{
fmpz_poly_zero(res);
return;
}
fmpz_poly_fit_length(res, rlen);
_fmpz_poly_mul_KS(res->coeffs, poly1->coeffs, len1, poly2->coeffs, len2);
_fmpz_poly_set_length(res, rlen);
}