92 lines
2.8 KiB
C
92 lines
2.8 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) 2012 Sebastian Pancratz
|
||
|
|
Copyright (C) 2013 Mike Hansen
|
||
|
|
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef T
|
||
|
|
|
||
|
|
#include "templates.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
_TEMPLATE(T, poly_mul) (TEMPLATE(T, struct) * rop,
|
||
|
|
const TEMPLATE(T, struct) * op1, slong len1,
|
||
|
|
const TEMPLATE(T, struct) * op2, slong len2,
|
||
|
|
const TEMPLATE(T, ctx_t) ctx)
|
||
|
|
{
|
||
|
|
if (FLINT_MAX(len1, len2) < TEMPLATE(CAP_T, MUL_CLASSICAL_CUTOFF))
|
||
|
|
{
|
||
|
|
_TEMPLATE(T, poly_mul_classical) (rop, op1, len1, op2, len2, ctx);
|
||
|
|
}
|
||
|
|
#ifdef USE_MUL_REORDER
|
||
|
|
else if (TEMPLATE(T, ctx_degree) (ctx) < 4)
|
||
|
|
{
|
||
|
|
_TEMPLATE(T, poly_mul_reorder) (rop, op1, len1, op2, len2, ctx);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
else
|
||
|
|
{
|
||
|
|
_TEMPLATE(T, poly_mul_KS) (rop, op1, len1, op2, len2, ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
TEMPLATE(T, poly_mul) (TEMPLATE(T, poly_t) rop,
|
||
|
|
const TEMPLATE(T, poly_t) op1,
|
||
|
|
const TEMPLATE(T, poly_t) op2,
|
||
|
|
const TEMPLATE(T, ctx_t) ctx)
|
||
|
|
{
|
||
|
|
const slong len1 = op1->length;
|
||
|
|
const slong len2 = op2->length;
|
||
|
|
const slong rlen = op1->length + op2->length - 1;
|
||
|
|
|
||
|
|
if (len1 == 0 || len2 == 0)
|
||
|
|
{
|
||
|
|
TEMPLATE(T, poly_zero) (rop, ctx);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rop == op1 || rop == op2)
|
||
|
|
{
|
||
|
|
TEMPLATE(T, poly_t) t;
|
||
|
|
|
||
|
|
TEMPLATE(T, poly_init2) (t, rlen, ctx);
|
||
|
|
_TEMPLATE(T, poly_mul) (t->coeffs, op1->coeffs, len1, op2->coeffs,
|
||
|
|
len2, ctx);
|
||
|
|
TEMPLATE(T, poly_swap) (rop, t, ctx);
|
||
|
|
TEMPLATE(T, poly_clear) (t, ctx);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
TEMPLATE(T, poly_fit_length) (rop, rlen, ctx);
|
||
|
|
_TEMPLATE(T, poly_mul) (rop->coeffs, op1->coeffs, len1, op2->coeffs,
|
||
|
|
len2, ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
_TEMPLATE(T, poly_set_length) (rop, rlen, ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|