58 lines
1.9 KiB
C
58 lines
1.9 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) 2008, 2009 William Hart
|
|
|
|
******************************************************************************/
|
|
|
|
#include <gmp.h>
|
|
#include <stdlib.h>
|
|
#include "flint.h"
|
|
#include "fmpz.h"
|
|
#include "fmpz_poly.h"
|
|
|
|
void
|
|
fmpz_poly_realloc(fmpz_poly_t poly, slong alloc)
|
|
{
|
|
if (alloc == 0) /* Clear up, reinitialise */
|
|
{
|
|
fmpz_poly_clear(poly);
|
|
fmpz_poly_init(poly);
|
|
return;
|
|
}
|
|
|
|
if (poly->alloc) /* Realloc */
|
|
{
|
|
fmpz_poly_truncate(poly, alloc);
|
|
|
|
poly->coeffs = (fmpz *) flint_realloc(poly->coeffs, alloc * sizeof(fmpz));
|
|
if (alloc > poly->alloc)
|
|
flint_mpn_zero((mp_ptr) (poly->coeffs + poly->alloc),
|
|
alloc - poly->alloc);
|
|
}
|
|
else /* Nothing allocated already so do it now */
|
|
{
|
|
poly->coeffs = (fmpz *) flint_calloc(alloc, sizeof(fmpz));
|
|
}
|
|
|
|
poly->alloc = alloc;
|
|
}
|