t-cmp_si.c
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上传日期:2022-08-06
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- /* Test mpq_cmp_si.
- Copyright 2001 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 <limits.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- #define SGN(x) ((x)<0 ? -1 : (x) != 0)
- void
- check_data (void)
- {
- static const struct {
- const char *q;
- long n;
- unsigned long d;
- int want;
- } data[] = {
- { "0", 0, 1, 0 },
- { "0", 0, 123, 0 },
- { "0", 0, ULONG_MAX, 0 },
- { "1", 0, 1, 1 },
- { "1", 0, 123, 1 },
- { "1", 0, ULONG_MAX, 1 },
- { "-1", 0, 1, -1 },
- { "-1", 0, 123, -1 },
- { "-1", 0, ULONG_MAX, -1 },
- { "123", 123, 1, 0 },
- { "124", 123, 1, 1 },
- { "122", 123, 1, -1 },
- { "-123", 123, 1, -1 },
- { "-124", 123, 1, -1 },
- { "-122", 123, 1, -1 },
- { "123", -123, 1, 1 },
- { "124", -123, 1, 1 },
- { "122", -123, 1, 1 },
- { "-123", -123, 1, 0 },
- { "-124", -123, 1, -1 },
- { "-122", -123, 1, 1 },
- { "5/7", 3,4, -1 },
- { "5/7", -3,4, 1 },
- { "-5/7", 3,4, -1 },
- { "-5/7", -3,4, 1 },
- };
- mpq_t q;
- int i, got;
- mpq_init (q);
- for (i = 0; i < numberof (data); i++)
- {
- mpq_set_str_or_abort (q, data[i].q, 0);
- MPQ_CHECK_FORMAT (q);
- got = mpq_cmp_si (q, data[i].n, data[i].d);
- if (SGN(got) != data[i].want)
- {
- printf ("mpq_cmp_si wrongn");
- error:
- mpq_trace (" q", q);
- printf (" n=%ldn", data[i].n);
- printf (" d=%lun", data[i].d);
- printf (" got=%dn", got);
- printf (" want=%dn", data[i].want);
- abort ();
- }
- if (data[i].n == 0)
- {
- got = mpq_cmp_si (q, 0L, data[i].d);
- if (SGN(got) != data[i].want)
- {
- printf ("mpq_cmp_si wrongn");
- goto error;
- }
- }
- }
- mpq_clear (q);
- }
- int
- main (int argc, char **argv)
- {
- tests_start ();
- check_data ();
- tests_end ();
- exit (0);
- }