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/*
Copyright (C) 2012 Fredrik Johansson
This file is part of Arb.
Arb 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 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "arb_poly.h"
void
_arb_poly_reverse(arb_ptr res, arb_srcptr poly, slong len, slong n)
{
if (res == poly)
{
slong i;
for (i = 0; i < n / 2; i++)
{
arb_struct t = res[i];
res[i] = res[n - 1 - i];
res[n - 1 - i] = t;
}
for (i = 0; i < n - len; i++)
arb_zero(res + i);
}
else
{
slong i;
for (i = 0; i < n - len; i++)
arb_zero(res + i);
for (i = 0; i < len; i++)
arb_set(res + (n - len) + i, poly + (len - 1) - i);
}
}
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