/*
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 "fmpq_poly.h"
void fmpq_poly_truncate(fmpq_poly_t poly, slong n)
{
if (poly->length > n)
{
slong i;
for (i = n; i < poly->length; i++)
_fmpz_demote(poly->coeffs + i);
poly->length = n;
fmpq_poly_canonicalise(poly);
}
}