85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
|
/*=============================================================================
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|