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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
# 2008 April 28
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
#
# Ticket #3060
#
# Make sure IEEE floating point NaN values are handled properly.
# SQLite should always convert NaN into NULL.
#
# Also verify that the decimal to IEEE754 binary conversion routines
# correctly generate 0.0, +Inf, and -Inf as appropriate for numbers
# out of range.
#
# $Id: nan.test,v 1.3 2008/05/11 11:07:07 drh Exp $
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test nan-1.1 {
db eval {
PRAGMA auto_vacuum=OFF;
PRAGMA page_size=1024;
CREATE TABLE t1(x FLOAT);
}
set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
sqlite3_bind_double $::STMT 1 NaN
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
do_test nan-1.2 {
sqlite3_bind_double $::STMT 1 +Inf
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null inf real}
do_test nan-1.3 {
sqlite3_bind_double $::STMT 1 -Inf
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null inf real -inf real}
do_test nan-1.4 {
sqlite3_bind_double $::STMT 1 -NaN
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null inf real -inf real {} null}
do_test nan-1.5 {
sqlite3_bind_double $::STMT 1 NaN0
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null inf real -inf real {} null {} null}
do_test nan-1.5 {
sqlite3_bind_double $::STMT 1 -NaN0
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null inf real -inf real {} null {} null {} null}
do_test nan-1.6 {
db eval {
UPDATE t1 SET x=x-x;
SELECT x, typeof(x) FROM t1;
}
} {{} null {} null {} null {} null {} null {} null}
do_test nan-2.1 {
db eval {
DELETE FROM T1;
}
sqlite3_bind_double $::STMT 1 NaN
sqlite3_step $::STMT
sqlite3_reset $::STMT
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
sqlite3_finalize $::STMT
# SQLite always converts NaN into NULL so it is not possible to write
# a NaN value into the database file using SQLite. The following series
# of tests writes a normal floating point value (0.5) into the database,
# then writes directly into the database file to change the 0.5 into NaN.
# Then it reads the value of the database to verify it is converted into
# NULL.
#
do_test nan-3.1 {
db eval {
DELETE FROM t1;
INSERT INTO t1 VALUES(0.5);
PRAGMA auto_vacuum=OFF;
PRAGMA page_size=1024;
VACUUM;
}
hexio_read test.db 2040 8
} {3FE0000000000000}
do_test nan-3.2 {
db eval {
SELECT x, typeof(x) FROM t1
}
} {0.5 real}
do_test nan-3.3 {
db close
hexio_write test.db 2040 FFF8000000000000
sqlite3 db test.db
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
do_test nan-3.4 {
db close
hexio_write test.db 2040 7FF8000000000000
sqlite3 db test.db
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
do_test nan-3.5 {
db close
hexio_write test.db 2040 FFFFFFFFFFFFFFFF
sqlite3 db test.db
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
do_test nan-3.6 {
db close
hexio_write test.db 2040 7FFFFFFFFFFFFFFF
sqlite3 db test.db
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
# Verify that the sqlite3AtoF routine is able to handle extreme
# numbers.
#
do_test nan-4.1 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES([string repeat 9 307].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {1e+307 real}
do_test nan-4.2 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES([string repeat 9 308].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {1e+308 real}
do_test nan-4.3 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {inf real}
do_test nan-4.4 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES(-[string repeat 9 307].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {-1e+307 real}
do_test nan-4.5 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES(-[string repeat 9 308].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {-1e+308 real}
do_test nan-4.6 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
db eval {SELECT x, typeof(x) FROM t1}
} {-inf real}
do_test nan-4.7 {
db eval {DELETE FROM t1}
set big -[string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
db eval "INSERT INTO t1 VALUES($big)"
db eval {SELECT x, typeof(x) FROM t1}
} {-1e+308 real}
do_test nan-4.8 {
db eval {DELETE FROM t1}
set big [string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
db eval "INSERT INTO t1 VALUES($big)"
db eval {SELECT x, typeof(x) FROM t1}
} {1e+308 real}
do_test nan-4.10 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES(1234.5[string repeat 0 10000]12345)"
db eval {SELECT x, typeof(x) FROM t1}
} {1234.5 real}
do_test nan-4.11 {
db eval {DELETE FROM t1}
db eval "INSERT INTO t1 VALUES(-1234.5[string repeat 0 10000]12345)"
db eval {SELECT x, typeof(x) FROM t1}
} {-1234.5 real}
do_test nan-4.12 {
db eval {DELETE FROM t1}
set small [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
db eval "INSERT INTO t1 VALUES($small)"
db eval {SELECT x, typeof(x) FROM t1}
} {9.88131291682493e-324 real}
do_test nan-4.13 {
db eval {DELETE FROM t1}
set small [string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
db eval "INSERT INTO t1 VALUES($small)"
db eval {SELECT x, typeof(x) FROM t1}
} {0.0 real}
do_test nan-4.14 {
db eval {DELETE FROM t1}
set small \
-[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
db eval "INSERT INTO t1 VALUES($small)"
db eval {SELECT x, typeof(x) FROM t1}
} {-9.88131291682493e-324 real}
do_test nan-4.15 {
db eval {DELETE FROM t1}
set small \
-[string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
db eval "INSERT INTO t1 VALUES($small)"
db eval {SELECT x, typeof(x) FROM t1}
} {0.0 real}
do_test nan-4.20 {
db eval {DELETE FROM t1}
set big [string repeat 9 10000].0e-9000
db eval "INSERT INTO t1 VALUES($big)"
db eval {SELECT x, typeof(x) FROM t1}
} {{} null}
finish_test
|
