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/*
Copyright (C) 2007 David Howden
Copyright (C) 2007, 2008, 2009, 2010 William Hart
Copyright (C) 2008 Richard Howell-Peak
Copyright (C) 2011 Fredrik Johansson
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "nmod_poly.h"
#include "nmod_poly_factor.h"
void
nmod_poly_factor_insert(nmod_poly_factor_t fac,
const nmod_poly_t poly, slong exp)
{
slong i;
if (poly->length <= 1)
return;
for (i = 0; i < fac->num; i++)
{
if (nmod_poly_equal(poly, fac->p + i))
{
fac->exp[i] += exp;
return;
}
}
if (fac->alloc == fac->num)
{
slong new_size = 2 * fac->alloc;
fac->p = flint_realloc(fac->p, sizeof(nmod_poly_struct) * new_size);
fac->exp = flint_realloc(fac->exp, sizeof(slong) * new_size);
for (i = fac->alloc; i < new_size; i++)
nmod_poly_init_preinv(fac->p + i, 1, 0);
fac->alloc = new_size;
}
nmod_poly_set(fac->p + (fac->num), poly);
(fac->p + (fac->num))->mod = poly->mod;
fac->exp[fac->num] = exp;
fac->num++;
}