pqc/external/flint-2.4.3/fmpz_poly/randtest.c
2014-05-24 23:16:06 +02:00

68 lines
2.1 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) 2009 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_poly.h"
#include "ulong_extras.h"
void
fmpz_poly_randtest(fmpz_poly_t f, flint_rand_t state,
slong len, mp_bitcnt_t bits)
{
fmpz_poly_fit_length(f, len);
_fmpz_vec_randtest(f->coeffs, state, len, bits);
_fmpz_poly_set_length(f, len);
_fmpz_poly_normalise(f);
}
void
fmpz_poly_randtest_unsigned(fmpz_poly_t f, flint_rand_t state,
slong len, mp_bitcnt_t bits)
{
fmpz_poly_fit_length(f, len);
_fmpz_vec_randtest_unsigned(f->coeffs, state, len, bits);
_fmpz_poly_set_length(f, len);
_fmpz_poly_normalise(f);
}
void
fmpz_poly_randtest_not_zero(fmpz_poly_t f, flint_rand_t state,
slong len, mp_bitcnt_t bits)
{
if ((bits == 0) || (len == 0))
{
flint_printf("Exception (fmpz_poly_randtest_not_zero). bits or len is zero.\n");
abort();
}
fmpz_poly_randtest(f, state, len, bits);
if (fmpz_poly_is_zero(f))
fmpz_poly_set_ui(f, 1);
}