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/*============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2011 Sebastian Pancratz
******************************************************************************/
#include "padic_poly.h"
int padic_poly_get_fmpz_poly(fmpz_poly_t rop, const padic_poly_t op,
const padic_ctx_t ctx)
{
const slong len = op->length;
if (op->val < 0)
{
return 0;
}
if (padic_poly_is_zero(op))
{
fmpz_poly_zero(rop);
return 1;
}
fmpz_poly_fit_length(rop, len);
_fmpz_poly_set_length(rop, len);
if (op->val == 0)
{
_fmpz_vec_set(rop->coeffs, op->coeffs, len);
}
else /* op->val > 0 */
{
fmpz_t pow;
fmpz_init(pow);
fmpz_pow_ui(pow, ctx->p, op->val);
_fmpz_vec_scalar_mul_fmpz(rop->coeffs, op->coeffs, len, pow);
fmpz_clear(pow);
}
return 1;
}
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