t-set_si.c
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上传日期:2022-08-06
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- /* Test mpz_set_si and mpz_init_set_si.
- Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser 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 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 Lesser General Public
- License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include <stdio.h>
- #include <stdlib.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- void
- check_data (void)
- {
- #if GMP_NUMB_BITS <= BITS_PER_ULONG
- #define ENTRY(n) { n, { n, 0 } }
- #else
- #define ENTRY(n) { n, { (n) & GMP_NUMB_MASK, (n) >> GMP_NUMB_BITS } }
- #endif
- static const struct {
- long n;
- mp_size_t want_size;
- mp_limb_t want_data[2];
- } data[] = {
- { 0L, 0 },
- { 1L, 1, { 1 } },
- { -1L, -1, { 1 } },
- #if GMP_NUMB_BITS >= BITS_PER_ULONG
- { LONG_MAX, 1, { LONG_MAX, 0 } },
- { -LONG_MAX, -1, { LONG_MAX, 0 } },
- { LONG_HIGHBIT, -1, { ULONG_HIGHBIT, 0 } },
- #else
- { LONG_MAX, 2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS } },
- { -LONG_MAX, -2, { LONG_MAX & GMP_NUMB_MASK, LONG_MAX >> GMP_NUMB_BITS }},
- { LONG_HIGHBIT, -2, { 0, ULONG_HIGHBIT >> GMP_NUMB_BITS } },
- #endif
- };
- mpz_t n;
- int i;
- for (i = 0; i < numberof (data); i++)
- {
- mpz_init (n);
- mpz_set_si (n, data[i].n);
- MPZ_CHECK_FORMAT (n);
- if (n->_mp_size != data[i].want_size
- || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
- ABS (data[i].want_size)) != 0)
- {
- printf ("mpz_set_si wrong on data[%d]n", i);
- abort();
- }
- mpz_clear (n);
- mpz_init_set_si (n, data[i].n);
- MPZ_CHECK_FORMAT (n);
- if (n->_mp_size != data[i].want_size
- || refmpn_cmp_allowzero (n->_mp_d, data[i].want_data,
- ABS (data[i].want_size)) != 0)
- {
- printf ("mpz_init_set_si wrong on data[%d]n", i);
- abort();
- }
- mpz_clear (n);
- }
- }
- int
- main (void)
- {
- tests_start ();
- check_data ();
- tests_end ();
- exit (0);
- }