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/*
Copyright (C) 2008, 2009 William Hart
Copyright (C) 2010, 2012 Sebastian Pancratz
Copyright (C) 2013 Mike Hansen
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/>.
*/
#ifdef T
#include "templates.h"
void
_TEMPLATE(T, poly_shift_right) (TEMPLATE(T, struct) * rop,
const TEMPLATE(T, struct) * op, slong len,
slong n, const TEMPLATE(T, ctx_t) ctx)
{
slong i;
if (rop != op)
{
for (i = 0; i < len - n; i++)
TEMPLATE(T, set) (rop + i, op + n + i, ctx);
}
else
{
for (i = 0; i < len - n; i++)
TEMPLATE(T, swap) (rop + i, rop + n + i, ctx);
}
}
void
TEMPLATE(T, poly_shift_right) (TEMPLATE(T, poly_t) rop,
const TEMPLATE(T, poly_t) op, slong n,
const TEMPLATE(T, ctx_t) ctx)
{
if (n == 0)
{
TEMPLATE(T, poly_set) (rop, op, ctx);
}
else if (op->length <= n)
{
TEMPLATE(T, poly_zero) (rop, ctx);
}
else
{
TEMPLATE(T, poly_fit_length) (rop, op->length - n, ctx);
_TEMPLATE(T, poly_shift_right) (rop->coeffs, op->coeffs, op->length, n,
ctx);
_TEMPLATE(T, poly_set_length) (rop, op->length - n, ctx);
}
}
#endif