Define qu and llu in str.h and _Static_assert that they're 64 bits.
[darkstat] / str.h
1 /* darkstat 3
2 * copyright (c) 2001-2011 Emil Mikulic.
3 *
4 * str.h: string buffer with pool-based reallocation
5 *
6 * Permission to use, copy, modify, and distribute this file for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include "cdefs.h"
20
21 #include <sys/types.h>
22 #include <stdarg.h>
23 #include <stdint.h> /* for uint64_t */
24
25 typedef long long unsigned int qu; /* as in appendf("%qu") */
26 typedef long long unsigned int llu; /* as in printf("%llu") */
27
28 _Static_assert(sizeof(qu) == sizeof(uint64_t), "qu must be uint64_t");
29 _Static_assert(sizeof(llu) == sizeof(uint64_t), "llu must be uint64_t");
30
31 /* Note: the contents are 8-bit clean and not zero terminated! */
32
33 struct str;
34
35 struct str *str_make(void);
36 void str_free(struct str *s);
37 void str_extract(struct str *buf, size_t *len, char **str);
38 void str_appendn(struct str *buf, const char *s, const size_t len);
39 void str_appendstr(struct str *buf, const struct str *s);
40
41 #ifdef __GNUC__
42 /* amusing efficiency hack */
43 # include <string.h>
44 # define str_append(buf, s) \
45 str_appendn(buf, s, \
46 (__builtin_constant_p(s) ? sizeof(s)-1 : strlen(s)) )
47 #else
48 void str_append(struct str *buf, const char *s);
49 #endif
50
51 size_t xvasprintf(char **result, const char *format, va_list va)
52 _printflike_(2, 0);
53 size_t xasprintf(char **result, const char *format, ...) _printflike_(2, 3);
54 void str_vappendf(struct str *s, const char *format, va_list va)
55 _printflike_(2, 0);
56 void str_appendf(struct str *s, const char *format, ...) _printflike_(2, 3);
57
58 struct str *length_of_time(const time_t t);
59 ssize_t str_write(const struct str * const buf, const int fd);
60 size_t str_len(const struct str * const buf);
61
62 /* vim:set ts=3 sw=3 tw=78 expandtab: */