pqc/external/flint-2.4.3/fq_poly_templates/sub.c
2014-05-24 23:16:06 +02:00

71 lines
2.3 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) 2012 Sebastian Pancratz
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#ifdef T
#include "templates.h"
void
_TEMPLATE(T, poly_sub) (TEMPLATE(T, struct) * res,
const TEMPLATE(T, struct) * poly1, slong len1,
const TEMPLATE(T, struct) * poly2, slong len2,
const TEMPLATE(T, ctx_t) ctx)
{
const slong min = FLINT_MIN(len1, len2);
slong i;
for (i = 0; i < min; i++)
TEMPLATE(T, sub) (res + i, poly1 + i, poly2 + i, ctx);
if (poly1 != res)
for (i = min; i < len1; i++)
TEMPLATE(T, set) (res + i, poly1 + i, ctx);
for (i = min; i < len2; i++)
TEMPLATE(T, neg) (res + i, poly2 + i, ctx);
}
void
TEMPLATE(T, poly_sub) (TEMPLATE(T, poly_t) res,
const TEMPLATE(T, poly_t) poly1,
const TEMPLATE(T, poly_t) poly2,
const TEMPLATE(T, ctx_t) ctx)
{
const slong max = FLINT_MAX(poly1->length, poly2->length);
TEMPLATE(T, poly_fit_length) (res, max, ctx);
_TEMPLATE(T, poly_sub) (res->coeffs, poly1->coeffs, poly1->length,
poly2->coeffs, poly2->length, ctx);
_TEMPLATE(T, poly_set_length) (res, max, ctx);
_TEMPLATE(T, poly_normalise) (res, ctx);
}
#endif