/*
Copyright (C) 2011 Sebastian Pancratz
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_poly.h"
#include "fmpq_poly.h"
void fmpq_poly_reverse(fmpq_poly_t res, const fmpq_poly_t poly, slong n)
{
slong len = FLINT_MIN(n, poly->length);
if (len == 0)
{
fmpq_poly_zero(res);
return;
}
fmpq_poly_fit_length(res, n);
_fmpz_poly_reverse(res->coeffs, poly->coeffs, len, n);
fmpz_set(res->den, poly->den);
_fmpq_poly_set_length(res, n);
fmpq_poly_canonicalise(res);
}