pqc/external/flint-2.4.3/fmpz_poly/scalar_divexact_fmpz.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
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) 2010 Sebastian Pancratz
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_vec.h"
#include "fmpz_poly.h"
void
fmpz_poly_scalar_divexact_fmpz(fmpz_poly_t poly1, const fmpz_poly_t poly2,
const fmpz_t x)
{
if (fmpz_is_zero(x))
{
flint_printf("Exception (fmpz_poly_scalar_divexact_fmpz). Division by zero.\n");
abort();
}
if (poly2->length == 0)
{
fmpz_poly_zero(poly1);
return;
}
fmpz_poly_fit_length(poly1, poly2->length);
_fmpz_vec_scalar_divexact_fmpz(poly1->coeffs, poly2->coeffs, poly2->length, x);
_fmpz_poly_set_length(poly1, poly2->length);
}