100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/* Test mpz_lucnum_ui and mpz_lucnum2_ui.
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Copyright 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "tests.h"
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/* Usage: t-lucnum_ui [n]
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Test up to L[n], or if n is omitted then the default limit below. A
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literal "x" for the limit means continue forever, this being meant only
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for development. */
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void
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check_sequence (int argc, char *argv[])
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{
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unsigned long n;
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unsigned long limit = 100 * BITS_PER_MP_LIMB;
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mpz_t want_ln, want_ln1, got_ln, got_ln1;
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if (argc > 1 && argv[1][0] == 'x')
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limit = ULONG_MAX;
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else if (argc > 1)
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limit = atoi (argv[1]);
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/* start at n==0 */
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mpz_init_set_si (want_ln1, -1); /* L[-1] */
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mpz_init_set_ui (want_ln, 2); /* L[0] */
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mpz_init (got_ln);
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mpz_init (got_ln1);
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for (n = 0; n < limit; n++)
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{
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mpz_lucnum2_ui (got_ln, got_ln1, n);
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MPZ_CHECK_FORMAT (got_ln);
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MPZ_CHECK_FORMAT (got_ln1);
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if (mpz_cmp (got_ln, want_ln) != 0 || mpz_cmp (got_ln1, want_ln1) != 0)
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{
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printf ("mpz_lucnum2_ui(%lu) wrong\n", n);
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mpz_trace ("want ln ", want_ln);
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mpz_trace ("got ln ", got_ln);
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mpz_trace ("want ln1", want_ln1);
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mpz_trace ("got ln1", got_ln1);
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abort ();
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}
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mpz_lucnum_ui (got_ln, n);
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MPZ_CHECK_FORMAT (got_ln);
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if (mpz_cmp (got_ln, want_ln) != 0)
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{
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printf ("mpz_lucnum_ui(%lu) wrong\n", n);
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mpz_trace ("want ln", want_ln);
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mpz_trace ("got ln", got_ln);
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abort ();
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}
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mpz_add (want_ln1, want_ln1, want_ln); /* L[n+1] = L[n] + L[n-1] */
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mpz_swap (want_ln1, want_ln);
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}
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mpz_clear (want_ln);
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mpz_clear (want_ln1);
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mpz_clear (got_ln);
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mpz_clear (got_ln1);
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}
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int
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main (int argc, char *argv[])
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{
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tests_start ();
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mp_trace_base = -16;
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check_sequence (argc, argv);
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tests_end ();
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exit (0);
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}
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