github.com/aergoio/aergo@v1.3.1/libtool/src/gmp-6.1.2/tests/mpq/t-get_str.c (about)

     1  /* Test mpq_get_str.
     2  
     3  Copyright 2001 Free Software Foundation, Inc.
     4  
     5  This file is part of the GNU MP Library test suite.
     6  
     7  The GNU MP Library test suite is free software; you can redistribute it
     8  and/or modify it under the terms of the GNU General Public License as
     9  published by the Free Software Foundation; either version 3 of the License,
    10  or (at your option) any later version.
    11  
    12  The GNU MP Library test suite is distributed in the hope that it will be
    13  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
    14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
    15  Public License for more details.
    16  
    17  You should have received a copy of the GNU General Public License along with
    18  the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
    19  
    20  #include <stdio.h>
    21  #include <stdlib.h>
    22  #include <string.h>
    23  #include "gmp.h"
    24  #include "gmp-impl.h"
    25  #include "tests.h"
    26  
    27  
    28  void
    29  check_one (mpq_srcptr q, int base, const char *want)
    30  {
    31    char    *str, *ret;
    32    size_t  str_alloc;
    33  
    34    MPQ_CHECK_FORMAT (q);
    35    mp_trace_base = base;
    36  
    37    str_alloc =
    38      mpz_sizeinbase (mpq_numref(q), ABS(base)) +
    39      mpz_sizeinbase (mpq_denref(q), ABS(base)) + 3;
    40  
    41    str = mpq_get_str (NULL, base, q);
    42    if (strlen(str)+1 > str_alloc)
    43      {
    44        printf ("mpq_get_str size bigger than should be (passing NULL)\n");
    45        printf ("  base %d\n", base);
    46        printf ("  got  size %lu \"%s\"\n", (unsigned long)  strlen(str)+1, str);
    47        printf ("  want size %lu\n", (unsigned long) str_alloc);
    48        abort ();
    49      }
    50    if (strcmp (str, want) != 0)
    51      {
    52        printf ("mpq_get_str wrong (passing NULL)\n");
    53        printf ("  base %d\n", base);
    54        printf ("  got  \"%s\"\n", str);
    55        printf ("  want \"%s\"\n", want);
    56        mpq_trace ("  q", q);
    57        abort ();
    58      }
    59    (*__gmp_free_func) (str, strlen (str) + 1);
    60  
    61    str = (char *) (*__gmp_allocate_func) (str_alloc);
    62  
    63    ret = mpq_get_str (str, base, q);
    64    if (str != ret)
    65      {
    66        printf ("mpq_get_str wrong return value (passing non-NULL)\n");
    67        printf ("  base %d\n", base);
    68        printf ("  got  %p\n", ret);
    69        printf ("  want %p\n", want);
    70        abort ();
    71      }
    72    if (strcmp (str, want) != 0)
    73      {
    74        printf ("mpq_get_str wrong (passing non-NULL)\n");
    75        printf ("  base %d\n", base);
    76        printf ("  got  \"%s\"\n", str);
    77        printf ("  want \"%s\"\n", want);
    78        abort ();
    79      }
    80    (*__gmp_free_func) (str, str_alloc);
    81  }
    82  
    83  
    84  void
    85  check_all (mpq_srcptr q, int base, const char *want)
    86  {
    87    char  *s;
    88  
    89    check_one (q, base, want);
    90  
    91    s = __gmp_allocate_strdup (want);
    92    strtoupper (s);
    93    check_one (q, -base, s);
    94    (*__gmp_free_func) (s, strlen(s)+1);
    95  }
    96  
    97  void
    98  check_data (void)
    99  {
   100    static const struct {
   101      int         base;
   102      const char  *num;
   103      const char  *den;
   104      const char  *want;
   105    } data[] = {
   106      { 10, "0", "1", "0" },
   107      { 10, "1", "1", "1" },
   108  
   109      { 16, "ffffffff", "1", "ffffffff" },
   110      { 16, "ffffffffffffffff", "1", "ffffffffffffffff" },
   111  
   112      { 16, "1", "ffffffff", "1/ffffffff" },
   113      { 16, "1", "ffffffffffffffff", "1/ffffffffffffffff" },
   114      { 16, "1", "10000000000000003", "1/10000000000000003" },
   115  
   116      { 10, "12345678901234567890", "9876543210987654323",
   117        "12345678901234567890/9876543210987654323" },
   118    };
   119  
   120    mpq_t  q;
   121    int    i;
   122  
   123    mpq_init (q);
   124    for (i = 0; i < numberof (data); i++)
   125      {
   126        mpz_set_str_or_abort (mpq_numref(q), data[i].num, data[i].base);
   127        mpz_set_str_or_abort (mpq_denref(q), data[i].den, data[i].base);
   128        check_all (q, data[i].base, data[i].want);
   129      }
   130    mpq_clear (q);
   131  }
   132  
   133  
   134  int
   135  main (void)
   136  {
   137    tests_start ();
   138  
   139    check_data ();
   140  
   141    tests_end ();
   142    exit (0);
   143  }