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/*=============================================================================
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
******************************************************************************/
#include "nmod_poly.h"
ulong nmod_poly_remove(nmod_poly_t f, const nmod_poly_t p)
{
nmod_poly_t q, r;
ulong i = 0;
nmod_poly_init_preinv(q, p->mod.n, p->mod.ninv);
nmod_poly_init_preinv(r, p->mod.n, p->mod.ninv);
while (1)
{
if (f->length < p->length)
break;
nmod_poly_divrem(q, r, f, p);
if (r->length == 0)
nmod_poly_swap(q, f);
else
break;
i++;
}
nmod_poly_clear(q);
nmod_poly_clear(r);
return i;
}
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