64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*============================================================================
|
|
|
|
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;
|
|
}
|
|
|