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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) 2010 Sebastian Pancratz
******************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_vec.h"
int _fmpz_vec_fread(FILE * file, fmpz ** vec, slong * len)
{
int alloc, r;
slong i;
mpz_t t;
alloc = (*vec == NULL);
mpz_init(t);
r = mpz_inp_str(t, file, 10);
if (r == 0)
{
if (alloc)
*len = 0;
mpz_clear(t);
return 0;
}
if (!mpz_fits_slong_p(t))
{
flint_printf("Exception (_fmpz_vec_fread). Length does not fit into a slong.\n");
abort();
}
if (alloc)
{
*len = flint_mpz_get_si(t);
*vec = _fmpz_vec_init(*len);
}
else
{
if (*len != flint_mpz_get_si(t))
{
mpz_clear(t);
return 0;
}
}
mpz_clear(t);
for (i = 0; i < *len; i++)
{
r = fmpz_fread(file, (*vec) + i);
if (r <= 0)
{
if (alloc)
{
_fmpz_vec_clear(*vec, *len);
*vec = NULL;
*len = 0;
}
return r;
}
}
return 1;
}
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