pqc/external/flint-2.4.3/fmpq/test/t-next_calkin_wilf.c
2014-05-24 23:16:06 +02:00

120 lines
3.2 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 Fredrik Johansson
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpq.h"
int
main(void)
{
slong i;
fmpq_t r, ans;
FLINT_TEST_INIT(state);
flint_printf("next_calkin_wilf....");
fflush(stdout);
fmpq_init(r);
fmpq_init(ans);
fmpq_set_si(r, 0, 1);
fmpq_set_si(ans, 191, 1287);
for (i = 0; i < 1000000; i++)
fmpq_next_calkin_wilf(r, r);
if (!fmpq_equal(r, ans))
{
flint_printf("FAIL: enum from 0\n");
fmpq_print(r);
flint_printf("\n");
fmpq_print(ans);
flint_printf("\n");
abort();
}
fmpq_set_si(r, 0, 1);
fmpq_set_si(ans, -191, 1096);
for (i = 0; i < 1000000; i++)
fmpq_next_signed_calkin_wilf(r, r);
if (!fmpq_equal(r, ans))
{
flint_printf("FAIL: signed enum from 0\n");
fmpq_print(r);
flint_printf("\n");
fmpq_print(ans);
flint_printf("\n");
abort();
}
fmpz_set_str(fmpq_numref(r), "18446744073709551615", 10);
fmpz_set_str(fmpq_denref(r), "18446744073709551616", 10);
fmpz_set_str(fmpq_numref(ans), "18538977794078099355206", 10);
fmpz_set_str(fmpq_denref(ans), "22062305912156623710275", 10);
for (i = 0; i < 1000000; i++)
fmpq_next_calkin_wilf(r, r);
if (!fmpq_equal(r, ans))
{
flint_printf("FAIL: enum from 2^64\n");
fmpq_print(r);
flint_printf("\n");
fmpq_print(ans);
flint_printf("\n");
abort();
}
fmpz_set_str(fmpq_numref(r), "18446744073709551615", 10);
fmpz_set_str(fmpq_denref(r), "18446744073709551616", 10);
fmpz_set_str(fmpq_numref(ans), "15015649675999575000951", 10);
fmpz_set_str(fmpq_denref(ans), "18538977794078099356211", 10);
for (i = 0; i < 1000000; i++)
fmpq_next_signed_calkin_wilf(r, r);
if (!fmpq_equal(r, ans))
{
flint_printf("FAIL: signed enum from 2^64\n");
fmpq_print(r);
flint_printf("\n");
fmpq_print(ans);
flint_printf("\n");
abort();
}
fmpq_clear(r);
fmpq_clear(ans);
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}