pqc/external/flint-2.4.3/arith/test/t-chebyshev_u_polynomial.c

73 lines
2.0 KiB
C
Raw Normal View History

2014-05-18 22:03:37 +00:00
/*=============================================================================
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 Fredrik Johansson
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "arith.h"
#include "fmpz.h"
#include "fmpz_poly.h"
int main()
{
fmpz_poly_t T, U;
slong n;
FLINT_TEST_INIT(state);
flint_printf("chebyshev_u_polynomial....");
fflush(stdout);
fmpz_poly_init(T);
fmpz_poly_init(U);
for (n = 0; n <= 500; n++)
{
arith_chebyshev_u_polynomial(U, n);
arith_chebyshev_t_polynomial(T, n + 1);
fmpz_poly_derivative(T, T);
fmpz_poly_scalar_divexact_ui(T, T, n + 1);
if (!fmpz_poly_equal(T, U))
{
flint_printf("FAIL: n = %wd\n", n);
flint_printf("T: "); fmpz_poly_print_pretty(T, "x"); flint_printf("\n");
flint_printf("U: "); fmpz_poly_print_pretty(U, "x"); flint_printf("\n");
abort();
}
}
fmpz_poly_clear(T);
fmpz_poly_clear(U);
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}