56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2007 David Howden
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Copyright (C) 2007, 2008, 2009, 2010 William Hart
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Copyright (C) 2008 Richard Howell-Peak
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Copyright (C) 2011 Fredrik Johansson
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******************************************************************************/
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#include "nmod_poly.h"
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ulong nmod_poly_remove(nmod_poly_t f, const nmod_poly_t p)
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{
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nmod_poly_t q, r;
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ulong i = 0;
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nmod_poly_init_preinv(q, p->mod.n, p->mod.ninv);
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nmod_poly_init_preinv(r, p->mod.n, p->mod.ninv);
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while (1)
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{
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if (f->length < p->length)
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break;
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nmod_poly_divrem(q, r, f, p);
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if (r->length == 0)
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nmod_poly_swap(q, f);
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else
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break;
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i++;
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}
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nmod_poly_clear(q);
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nmod_poly_clear(r);
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return i;
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}
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