pqc/external/flint-2.4.3/fq_poly_factor_templates/factor_equal_deg.c

77 lines
2.4 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) 2007 David Howden
Copyright (C) 2007, 2008, 2009, 2010 William Hart
Copyright (C) 2008 Richard Howell-Peak
Copyright (C) 2011 Fredrik Johansson
Copyright (C) 2012 Lina Kulakova
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#ifdef T
#include "templates.h"
#include "ulong_extras.h"
void
TEMPLATE(T, poly_factor_equal_deg) (TEMPLATE(T, poly_factor_t) factors,
const TEMPLATE(T, poly_t) pol, slong d,
const TEMPLATE(T, ctx_t) ctx)
{
if (pol->length == d + 1)
{
TEMPLATE(T, poly_factor_insert) (factors, pol, 1, ctx);
}
else
{
TEMPLATE(T, poly_t) f, g, r;
flint_rand_t state;
TEMPLATE(T, poly_init) (f, ctx);
flint_randinit(state);
while (!TEMPLATE(T, poly_factor_equal_deg_prob)
(f, state, pol, d, ctx))
{
};
flint_randclear(state);
TEMPLATE(T, poly_init) (g, ctx);
TEMPLATE(T, poly_init) (r, ctx);
TEMPLATE(T, poly_divrem) (g, r, pol, f, ctx);
TEMPLATE(T, poly_clear) (r, ctx);
TEMPLATE(T, poly_factor_equal_deg) (factors, f, d, ctx);
TEMPLATE(T, poly_clear) (f, ctx);
TEMPLATE(T, poly_factor_equal_deg) (factors, g, d, ctx);
TEMPLATE(T, poly_clear) (g, ctx);
}
}
#endif