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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) 2011 Sebastian Pancratz
Copyright (C) 2012 Lina Kulakova
******************************************************************************/
#include <stdlib.h>
#include "fmpz_mod_poly.h"
void
fmpz_mod_poly_factor_realloc(fmpz_mod_poly_factor_t fac, slong alloc)
{
fmpz_t p;
fmpz_init_set_ui(p, 5);
if (alloc == 0) /* Clear up, reinitialise */
{
fmpz_mod_poly_factor_clear(fac);
fmpz_mod_poly_factor_init(fac);
}
else if (fac->alloc) /* Realloc */
{
if (fac->alloc > alloc)
{
slong i;
for (i = alloc; i < fac->num; i++)
fmpz_mod_poly_clear(fac->poly + i);
fac->poly =
flint_realloc(fac->poly, alloc * sizeof(fmpz_mod_poly_struct));
fac->exp = flint_realloc(fac->exp, alloc * sizeof(slong));
fac->alloc = alloc;
}
else if (fac->alloc < alloc)
{
slong i;
fac->poly =
flint_realloc(fac->poly, alloc * sizeof(fmpz_mod_poly_struct));
fac->exp = flint_realloc(fac->exp, alloc * sizeof(slong));
for (i = fac->alloc; i < alloc; i++)
{
fmpz_mod_poly_init(fac->poly + i, p);
fac->exp[i] = WORD(0);
}
fac->alloc = alloc;
}
}
else /* Nothing allocated already so do it now */
{
slong i;
fac->poly = flint_malloc(alloc * sizeof(fmpz_mod_poly_struct));
fac->exp = flint_calloc(alloc, sizeof(slong));
for (i = 0; i < alloc; i++)
fmpz_mod_poly_init(fac->poly + i, p);
fac->num = 0;
fac->alloc = alloc;
}
fmpz_clear(p);
}
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