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
|
#!/usr/bin/nickle
# Copyright © 2018, Keith Packard
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of the copyright holders nor the names of
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
printf ("const dtoa_type __dtoa_scale_up[] = {\n");
for (int i = 1; i <= 65536; i *= 2) {
printf("#if DTOA_MAX_10_EXP >= %d\n", i);
printf("\t1e%d,\n", i);
printf("#endif\n");
}
printf("};\n");
printf ("const dtoa_type __dtoa_scale_down[] = {\n");
for (int i = 1; i <= 65536; i *= 2) {
printf("#if DTOA_MIN_10_EXP <= -%d\n", i);
printf("\t1e-%d,\n", i);
printf("#endif\n");
}
printf("};\n");
printf ("const dtoa_type __dtoa_round[] = {\n");
for (int i = 30; i >= 0; i--) {
printf("#if DTOA_DIG >= %d\n", i);
printf("\t5e%d,\n", i);
printf("#endif\n");
}
printf("};\n");
int j = 0;
for (int i = 1; i <= 65536; i *= 2) {
printf("#if DTOA_MAX_10_EXP >= %d && DTOA_MAX_10_EXP < %d\n", i, i*2);
printf("#define DTOA_SCALE_UP_NUM %d\n", j + 1);
printf("#endif\n");
j++;
}
int j = 0;
for (int i = 1; i <= 65536; i *= 2) {
printf("#if DTOA_MIN_10_EXP <= -%d && DTOA_MIN_10_EXP > -%d\n", i, i*2);
printf ("#define DTOA_SCALE_DOWN_NUM %d\n", j + 1);
printf("#endif\n");
j++;
}
|
