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/*
Copyright (C) 2011 Sebastian Pancratz
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 "fmpz.h"
#include "fmpz_poly.h"
#include "fmpz_poly_factor.h"
void fmpz_poly_factor_realloc(fmpz_poly_factor_t fac, slong alloc)
{
if (alloc == 0) /* Clear up, reinitialise */
{
fmpz_poly_factor_clear(fac);
fmpz_poly_factor_init(fac);
}
else if (fac->alloc) /* Realloc */
{
if (fac->alloc > alloc)
{
slong i;
for (i = alloc; i < fac->num; i++)
fmpz_poly_clear(fac->p + i);
fac->p = flint_realloc(fac->p, alloc * sizeof(fmpz_poly_struct));
fac->exp = flint_realloc(fac->exp, alloc * sizeof(slong));
fac->alloc = alloc;
}
else if (fac->alloc < alloc)
{
slong i;
fac->p = flint_realloc(fac->p, alloc * sizeof(fmpz_poly_struct));
fac->exp = flint_realloc(fac->exp, alloc * sizeof(slong));
for (i = fac->alloc; i < alloc; i++)
{
fmpz_poly_init(fac->p + i);
fac->exp[i] = WORD(0);
}
fac->alloc = alloc;
}
}
else /* Nothing allocated already so do it now */
{
slong i;
fac->p = flint_malloc(alloc * sizeof(fmpz_poly_struct));
fac->exp = flint_calloc(alloc, sizeof(slong));
for (i = 0; i < alloc; i++)
fmpz_poly_init(fac->p + i);
fac->num = 0;
fac->alloc = alloc;
}
}