1 /* Test mpq_equal.
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 "gmp-impl.h"
23 #include "tests.h"
24
25
26 void
27 check_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
45 void
46 check_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
69 void
70 check_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
136 int
137 main (void)
138 {
139 tests_start ();
140 mp_trace_base = -16;
141
142 check_various ();
143
144 tests_end ();
145 exit (0);
146 }