t-get_str.c
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上传日期:2022-08-06
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- /* Test mpq_get_str.
- 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 <string.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- void
- check_one (mpq_srcptr q, int base, const char *want)
- {
- char *str, *ret;
- size_t str_alloc;
- MPQ_CHECK_FORMAT (q);
- mp_trace_base = base;
- str_alloc =
- mpz_sizeinbase (mpq_numref(q), ABS(base)) +
- mpz_sizeinbase (mpq_denref(q), ABS(base)) + 3;
- str = mpq_get_str (NULL, base, q);
- if (strlen(str)+1 > str_alloc)
- {
- printf ("mpq_get_str size bigger than should be (passing NULL)n");
- printf (" base %dn", base);
- printf (" got size %lu "%s"n", (unsigned long) strlen(str)+1, str);
- printf (" want size %lun", (unsigned long) str_alloc);
- abort ();
- }
- if (strcmp (str, want) != 0)
- {
- printf ("mpq_get_str wrong (passing NULL)n");
- printf (" base %dn", base);
- printf (" got "%s"n", str);
- printf (" want "%s"n", want);
- mpq_trace (" q", q);
- abort ();
- }
- (*__gmp_free_func) (str, strlen (str) + 1);
- str = (char *) (*__gmp_allocate_func) (str_alloc);
- ret = mpq_get_str (str, base, q);
- if (str != ret)
- {
- printf ("mpq_get_str wrong return value (passing non-NULL)n");
- printf (" base %dn", base);
- printf (" got %pn", ret);
- printf (" want %pn", want);
- abort ();
- }
- if (strcmp (str, want) != 0)
- {
- printf ("mpq_get_str wrong (passing non-NULL)n");
- printf (" base %dn", base);
- printf (" got "%s"n", str);
- printf (" want "%s"n", want);
- abort ();
- }
- (*__gmp_free_func) (str, str_alloc);
- }
- void
- check_all (mpq_srcptr q, int base, const char *want)
- {
- char *s;
- check_one (q, base, want);
- s = __gmp_allocate_strdup (want);
- strtoupper (s);
- check_one (q, -base, s);
- (*__gmp_free_func) (s, strlen(s)+1);
- }
- void
- check_data (void)
- {
- static const struct {
- int base;
- const char *num;
- const char *den;
- const char *want;
- } data[] = {
- { 10, "0", "1", "0" },
- { 10, "1", "1", "1" },
- { 16, "ffffffff", "1", "ffffffff" },
- { 16, "ffffffffffffffff", "1", "ffffffffffffffff" },
- { 16, "1", "ffffffff", "1/ffffffff" },
- { 16, "1", "ffffffffffffffff", "1/ffffffffffffffff" },
- { 16, "1", "10000000000000003", "1/10000000000000003" },
- { 10, "12345678901234567890", "9876543210987654323",
- "12345678901234567890/9876543210987654323" },
- };
- mpq_t q;
- int i;
- mpq_init (q);
- for (i = 0; i < numberof (data); i++)
- {
- mpz_set_str_or_abort (mpq_numref(q), data[i].num, data[i].base);
- mpz_set_str_or_abort (mpq_denref(q), data[i].den, data[i].base);
- check_all (q, data[i].base, data[i].want);
- }
- mpq_clear (q);
- }
- int
- main (void)
- {
- tests_start ();
- check_data ();
- tests_end ();
- exit (0);
- }