1 /* declarations for strftime.c
2
3 Copyright (C) 2002, 2004, 2008-2023 Free Software Foundation, Inc.
4
5 This file is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation, either version 3 of the
8 License, or (at your option) any later version.
9
10 This file is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17
18 #include <time.h>
19
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23
24 /* Just like strftime, but with two more arguments:
25 POSIX requires that strftime use the local timezone information.
26 Use the timezone __TZ instead. Use __NS as the number of
27 nanoseconds in the %N directive.
28
29 On error, set errno and return 0. Otherwise, return the number of
30 bytes generated (not counting the trailing NUL), preserving errno
31 if the number is 0. This errno behavior is in draft POSIX 202x
32 plus some requested changes to POSIX. */
33 size_t nstrftime (char *restrict, size_t, char const *, struct tm const *,
34 timezone_t __tz, int __ns);
35
36 #ifdef __cplusplus
37 }
38 #endif