68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
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/*=============================================================================
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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 <stdlib.h>
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#include "nmod_poly.h"
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void
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nmod_poly_factor_insert(nmod_poly_factor_t fac,
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const nmod_poly_t poly, slong exp)
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{
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slong i;
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if (poly->length <= 1)
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return;
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for (i = 0; i < fac->num; i++)
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{
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if (nmod_poly_equal(poly, fac->p + i))
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{
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fac->exp[i] += exp;
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return;
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}
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}
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if (fac->alloc == fac->num)
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{
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slong new_size = 2 * fac->alloc;
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fac->p = flint_realloc(fac->p, sizeof(nmod_poly_struct) * new_size);
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fac->exp = flint_realloc(fac->exp, sizeof(slong) * new_size);
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for (i = fac->alloc; i < new_size; i++)
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nmod_poly_init_preinv(fac->p + i, 1, 0);
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fac->alloc = new_size;
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}
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nmod_poly_set(fac->p + (fac->num), poly);
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(fac->p + (fac->num))->mod = poly->mod;
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fac->exp[fac->num] = exp;
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fac->num++;
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}
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