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/* Test mpz_lucnum_ui and mpz_lucnum2_ui.
Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU MP Library test suite.
The GNU MP Library test suite 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 3 of the License,
or (at your option) any later version.
The GNU MP Library test suite 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
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp-impl.h"
#include "tests.h"
/* Usage: t-lucnum_ui [n]
Test up to L[n], or if n is omitted then the default limit below. A
literal "x" for the limit means continue forever, this being meant only
for development. */
void
check_sequence (int argc, char *argv[])
{
unsigned long n;
unsigned long limit = 100 * GMP_LIMB_BITS;
mpz_t want_ln, want_ln1, got_ln, got_ln1;
if (argc > 1 && argv[1][0] == 'x')
limit = ULONG_MAX;
else
TESTS_REPS (limit, argv, argc);
/* start at n==0 */
mpz_init_set_si (want_ln1, -1); /* L[-1] */
mpz_init_set_ui (want_ln, 2); /* L[0] */
mpz_init (got_ln);
mpz_init (got_ln1);
for (n = 0; n < limit; n++)
{
mpz_lucnum2_ui (got_ln, got_ln1, n);
MPZ_CHECK_FORMAT (got_ln);
MPZ_CHECK_FORMAT (got_ln1);
if (mpz_cmp (got_ln, want_ln) != 0 || mpz_cmp (got_ln1, want_ln1) != 0)
{
printf ("mpz_lucnum2_ui(%lu) wrong\n", n);
mpz_trace ("want ln ", want_ln);
mpz_trace ("got ln ", got_ln);
mpz_trace ("want ln1", want_ln1);
mpz_trace ("got ln1", got_ln1);
abort ();
}
mpz_lucnum_ui (got_ln, n);
MPZ_CHECK_FORMAT (got_ln);
if (mpz_cmp (got_ln, want_ln) != 0)
{
printf ("mpz_lucnum_ui(%lu) wrong\n", n);
mpz_trace ("want ln", want_ln);
mpz_trace ("got ln", got_ln);
abort ();
}
mpz_add (want_ln1, want_ln1, want_ln); /* L[n+1] = L[n] + L[n-1] */
mpz_swap (want_ln1, want_ln);
}
mpz_clear (want_ln);
mpz_clear (want_ln1);
mpz_clear (got_ln);
mpz_clear (got_ln1);
}
int
main (int argc, char *argv[])
{
tests_start ();
mp_trace_base = -16;
check_sequence (argc, argv);
tests_end ();
exit (0);
}
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