1/* Test mpq_equal.
2
3Copyright 2001 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library test suite.
6
7The GNU MP Library test suite is free software; you can redistribute it
8and/or modify it under the terms of the GNU General Public License as
9published by the Free Software Foundation; either version 3 of the License,
10or (at your option) any later version.
11
12The GNU MP Library test suite is distributed in the hope that it will be
13useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
15Public License for more details.
16
17You should have received a copy of the GNU General Public License along with
18the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
19
20#include <stdio.h>
21#include <stdlib.h>
22#include "gmp-impl.h"
23#include "tests.h"
24
25
26void
27check_one (mpq_srcptr x, mpq_srcptr y, int want)
28{
29  int  got;
30
31  MPQ_CHECK_FORMAT (x);
32  MPQ_CHECK_FORMAT (y);
33
34  got = mpq_equal (x, y);
35  if ((got != 0) != (want != 0))
36    {
37      printf ("mpq_equal got %d want %d\n", got, want);
38      mpq_trace ("x", x);
39      mpq_trace ("y", y);
40      abort ();
41    }
42}
43
44
45void
46check_all (mpq_ptr x, mpq_ptr y, int want)
47{
48  check_one (x, y, want);
49  check_one (y, x, want);
50
51  mpq_neg (x, x);
52  mpq_neg (y, y);
53
54  check_one (x, y, want);
55  check_one (y, x, want);
56}
57
58
59#define SET4Z(z, size,l3,l2,l1,l0) \
60  SIZ(z) = size; PTR(z)[3] = l3; PTR(z)[2] = l2; PTR(z)[1] = l1; PTR(z)[0] = l0
61
62#define SET4(q, nsize,n3,n2,n1,n0, dsize,d3,d2,d1,d0)   \
63  SET4Z (mpq_numref(q), nsize,n3,n2,n1,n0);             \
64  SET4Z (mpq_denref(q), dsize,d3,d2,d1,d0)
65
66
67/* Exercise various combinations of same and slightly different values. */
68
69void
70check_various (void)
71{
72  mpq_t  x, y;
73
74  mpq_init (x);
75  mpq_init (y);
76
77  mpz_realloc (mpq_numref(x), (mp_size_t) 20);
78  mpz_realloc (mpq_denref(x), (mp_size_t) 20);
79  mpz_realloc (mpq_numref(y), (mp_size_t) 20);
80  mpz_realloc (mpq_denref(y), (mp_size_t) 20);
81
82  /* 0 == 0 */
83  SET4 (x, 0,13,12,11,10, 1,23,22,21,1);
84  SET4 (y, 0,33,32,31,30, 1,43,42,41,1);
85  check_all (x, y, 1);
86
87  /* 83/99 == 83/99 */
88  SET4 (x, 1,13,12,11,83, 1,23,22,21,99);
89  SET4 (y, 1,33,32,31,83, 1,43,42,41,99);
90  check_all (x, y, 1);
91
92  /* 1:2:3:4/5:6:7 == 1:2:3:4/5:6:7 */
93  SET4 (x, 4,1,2,3,4, 3,88,5,6,7);
94  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
95  check_all (x, y, 1);
96
97  /* various individual changes making != */
98  SET4 (x, 4,1,2,3,667, 3,88,5,6,7);
99  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
100  check_all (x, y, 0);
101  SET4 (x, 4,1,2,666,4, 3,88,5,6,7);
102  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
103  check_all (x, y, 0);
104  SET4 (x, 4,1,666,3,4, 3,88,5,6,7);
105  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
106  check_all (x, y, 0);
107#if GMP_NUMB_BITS != 62
108  SET4 (x, 4,667,2,3,4, 3,88,5,6,7);
109  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
110  check_all (x, y, 0);
111#endif
112  SET4 (x, 4,1,2,3,4, 3,88,5,6,667);
113  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
114  check_all (x, y, 0);
115  SET4 (x, 4,1,2,3,4, 3,88,5,667,7);
116  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
117  check_all (x, y, 0);
118  SET4 (x, 4,1,2,3,4, 3,88,666,6,7);
119  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
120  check_all (x, y, 0);
121  SET4 (x, -4,1,2,3,4, 3,88,5,6,7);
122  SET4 (y,  4,1,2,3,4, 3,99,5,6,7);
123  check_all (x, y, 0);
124  SET4 (x, 1,1,2,3,4, 3,88,5,6,7);
125  SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
126  check_all (x, y, 0);
127  SET4 (x, 4,1,2,3,4, 3,88,5,6,7);
128  SET4 (y, 4,1,2,3,4, 2,99,5,6,7);
129  check_all (x, y, 0);
130
131  mpq_clear (x);
132  mpq_clear (y);
133}
134
135
136int
137main (void)
138{
139  tests_start ();
140  mp_trace_base = -16;
141
142  check_various ();
143
144  tests_end ();
145  exit (0);
146}
147