1  /* Test mpq_cmp_si.
       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 <limits.h>
      23  
      24  #include "gmp-impl.h"
      25  #include "tests.h"
      26  
      27  
      28  #define SGN(x)   ((x)<0 ? -1 : (x) != 0)
      29  
      30  void
      31  check_data (void)
      32  {
      33    static const struct {
      34      const char     *q;
      35      long           n;
      36      unsigned long  d;
      37      int            want;
      38    } data[] = {
      39      { "0", 0, 1, 0 },
      40      { "0", 0, 123, 0 },
      41      { "0", 0, ULONG_MAX, 0 },
      42      { "1", 0, 1, 1 },
      43      { "1", 0, 123, 1 },
      44      { "1", 0, ULONG_MAX, 1 },
      45      { "-1", 0, 1, -1 },
      46      { "-1", 0, 123, -1 },
      47      { "-1", 0, ULONG_MAX, -1 },
      48  
      49      { "123", 123, 1, 0 },
      50      { "124", 123, 1, 1 },
      51      { "122", 123, 1, -1 },
      52  
      53      { "-123", 123, 1, -1 },
      54      { "-124", 123, 1, -1 },
      55      { "-122", 123, 1, -1 },
      56  
      57      { "123", -123, 1, 1 },
      58      { "124", -123, 1, 1 },
      59      { "122", -123, 1, 1 },
      60  
      61      { "-123", -123, 1, 0 },
      62      { "-124", -123, 1, -1 },
      63      { "-122", -123, 1, 1 },
      64  
      65      { "5/7", 3,4, -1 },
      66      { "5/7", -3,4, 1 },
      67      { "-5/7", 3,4, -1 },
      68      { "-5/7", -3,4, 1 },
      69    };
      70  
      71    mpq_t  q;
      72    int    i, got;
      73  
      74    mpq_init (q);
      75  
      76    for (i = 0; i < numberof (data); i++)
      77      {
      78        mpq_set_str_or_abort (q, data[i].q, 0);
      79        MPQ_CHECK_FORMAT (q);
      80  
      81        got = mpq_cmp_si (q, data[i].n, data[i].d);
      82        if (SGN(got) != data[i].want)
      83          {
      84            printf ("mpq_cmp_si wrong\n");
      85          error:
      86            mpq_trace ("  q", q);
      87            printf ("  n=%ld\n", data[i].n);
      88            printf ("  d=%lu\n", data[i].d);
      89            printf ("  got=%d\n", got);
      90            printf ("  want=%d\n", data[i].want);
      91            abort ();
      92          }
      93  
      94        if (data[i].n == 0)
      95          {
      96            got = mpq_cmp_si (q, 0L, data[i].d);
      97            if (SGN(got) != data[i].want)
      98              {
      99                printf ("mpq_cmp_si wrong\n");
     100                goto error;
     101              }
     102          }
     103      }
     104  
     105    mpq_clear (q);
     106  }
     107  
     108  int
     109  main (int argc, char **argv)
     110  {
     111    tests_start ();
     112  
     113    check_data ();
     114  
     115    tests_end ();
     116    exit (0);
     117  }