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