1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* Exercise various mpf functions. */
/*
Copyright 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.
*/
#include <stdio.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
#define SGN(x) ((x) < 0 ? -1 : (x) == 0 ? 0 : 1)
void
check_mpf_set_si (void)
{
static const struct {
long x;
mp_size_t want_size;
mp_limb_t want_limb;
} data[] = {
{ 0L, 0 },
{ 1L, 1, 1 },
{ -1L, -1, 1 },
{ LONG_MAX, 1, LONG_MAX },
{ -LONG_MAX, -1, LONG_MAX },
{ LONG_HIGHBIT, -1, ULONG_HIGHBIT },
};
mpf_t x;
int i;
for (i = 0; i < numberof (data); i++)
{
mpf_init (x);
mpf_set_si (x, data[i].x);
MPF_CHECK_FORMAT (x);
if (x->_mp_size != data[i].want_size
|| (x->_mp_size != 0
&& (x->_mp_d[0] != data[i].want_limb
|| x->_mp_exp != 1)))
{
printf ("mpf_set_si wrong on data[%d]\n", i);
abort();
}
mpf_clear (x);
mpf_init_set_si (x, data[i].x);
MPF_CHECK_FORMAT (x);
if (x->_mp_size != data[i].want_size
|| (x->_mp_size != 0
&& (x->_mp_d[0] != data[i].want_limb
|| x->_mp_exp != 1)))
{
printf ("mpf_init_set_si wrong on data[%d]\n", i);
abort();
}
mpf_clear (x);
}
}
void
check_mpf_cmp_si (void)
{
static const struct {
int a_base;
const char *a;
const char *b;
int want;
} data[] = {
{ 10, "0", "1", -1 },
{ 10, "0", "0", 0 },
{ 10, "0", "-1", 1 },
{ 10, "1", "1", 0 },
{ 10, "1", "0", 1 },
{ 10, "1", "-1", 1 },
{ 10, "-1", "1", -1 },
{ 10, "-1", "0", -1 },
{ 10, "-1", "-1", 0 },
{ 16, "0", "-0x80000000", 1 },
{ 16, "80000000", "-0x80000000", 1 },
{ 16, "80000001", "-0x80000000", 1 },
{ 16, "-80000000", "-0x80000000", 0 },
{ 16, "-80000001", "-0x80000000", -1 },
{ 16, "0", "-0x8000000000000000", 1 },
{ 16, "8000000000000000", "-0x8000000000000000", 1 },
{ 16, "8000000000000001", "-0x8000000000000000", 1 },
{ 16, "-8000000000000000", "-0x8000000000000000", 0 },
{ 16, "-8000000000000001", "-0x8000000000000000", -1 },
};
mpf_t a;
mpz_t bz;
long b;
int got;
int i;
mpf_init (a);
mpz_init (bz);
for (i = 0; i < numberof (data); i++)
{
mpf_set_str_or_abort (a, data[i].a, data[i].a_base);
mpz_set_str_or_abort (bz, data[i].b, 0);
if (mpz_fits_slong_p (bz))
{
b = mpz_get_si (bz);
got = mpf_cmp_si (a, b);
if (SGN (got) != data[i].want)
{
printf ("mpf_cmp_si wrong on data[%d]\n", i);
printf (" a="); mpf_out_str (stdout, 10, 0, a);
printf (" (%s)\n", data[i].a);
printf (" b=%ld (%s)\n", b, data[i].b);
printf (" got=%d\n", got);
printf (" want=%d\n", data[i].want);
abort();
}
}
}
mpf_clear (a);
mpz_clear (bz);
}
void
check_mpf_getset_prec (void)
{
mpf_t x;
unsigned long i, a, b;
mpf_init (x);
for (i = 1; i < 2000; i++)
{
mpf_set_prec (x, i);
a = mpf_get_prec (x);
mpf_set_prec (x, a);
b = mpf_get_prec (x);
if (a != b)
{
printf ("mpf_get_prec / mpf_set_prec inconsistency\n");
printf (" set %lu gives %lu, but then set %lu gives %lu\n",
i, a,
a, b);
abort ();
}
}
mpf_clear (x);
}
int
main (void)
{
tests_start ();
check_mpf_set_si ();
check_mpf_cmp_si ();
check_mpf_getset_prec ();
tests_end ();
exit (0);
}
|
