xref: /unit/auto/types (revision 0:a63ceefd6ab0)
1
2# Copyright (C) Igor Sysoev
3# Copyright (C) NGINX, Inc.
4
5
6# Sizes of C types.
7
8# "-Wall -Werror" or similar constraints in default CFLAGS may require
9# to use "%zu" format to printf() result of sizeof().  But "%zu" may
10# be unavailable, so the "(int)" cast is a simple and portable solution:
11#     printf("%d", (int) sizeof(TYPE));
12
13
14nxt_feature="int size"
15nxt_feature_name=NXT_INT_SIZE
16nxt_feature_run=value
17nxt_feature_incs=
18nxt_feature_libs=
19nxt_feature_test="#include <stdio.h>
20
21                  int main() {
22                      printf(\"%d\", (int) sizeof(int));
23                      return 0;
24                  }"
25. auto/feature
26
27
28nxt_feature="long size"
29nxt_feature_name=NXT_LONG_SIZE
30nxt_feature_run=value
31nxt_feature_incs=
32nxt_feature_libs=
33nxt_feature_test="#include <stdio.h>
34
35                  int main() {
36                      printf(\"%d\", (int) sizeof(long));
37                      return 0;
38                  }"
39. auto/feature
40
41
42nxt_feature="long long size"
43nxt_feature_name=NXT_LONG_LONG_SIZE
44nxt_feature_run=value
45nxt_feature_incs=
46nxt_feature_libs=
47nxt_feature_test="#include <stdio.h>
48
49                  int main() {
50                      printf(\"%d\", (int) sizeof(long long));
51                      return 0;
52                  }"
53. auto/feature
54
55
56nxt_feature="void * size"
57nxt_feature_name=NXT_PTR_SIZE
58nxt_feature_run=value
59nxt_feature_incs=
60nxt_feature_libs=
61nxt_feature_test="#include <stdio.h>
62
63                  int main() {
64                      printf(\"%d\", (int) sizeof(void *));
65                      return 0;
66                  }"
67. auto/feature
68
69
70case "$nxt_feature_value" in
71    8) NXT_64BIT=1 ;;
72    *) NXT_64BIT=0 ;;
73esac
74
75
76nxt_feature="size_t size"
77nxt_feature_name=NXT_SIZE_T_SIZE
78nxt_feature_run=value
79nxt_feature_incs=
80nxt_feature_libs=
81nxt_feature_test="#include <stdio.h>
82
83                  int main() {
84                      printf(\"%d\", (int) sizeof(size_t));
85                      return 0;
86                  }"
87. auto/feature
88
89
90nxt_feature="off_t size"
91nxt_feature_name=NXT_OFF_T_SIZE
92nxt_feature_run=value
93nxt_feature_incs=
94nxt_feature_libs=
95nxt_feature_test="#define _FILE_OFFSET_BITS  64
96                  #include <unistd.h>
97                  #include <stdio.h>
98
99                  int main() {
100                      printf(\"%d\", (int) sizeof(off_t));
101                      return 0;
102                  }"
103. auto/feature
104
105
106nxt_feature="time_t size"
107nxt_feature_name=NXT_TIME_T_SIZE
108nxt_feature_run=value
109nxt_feature_incs=
110nxt_feature_libs=
111nxt_feature_test="#include <time.h>
112                  #include <stdio.h>
113
114                  int main() {
115                      printf(\"%d\", (int) sizeof(time_t));
116                      return 0;
117                  }"
118. auto/feature
119