mirror of
git://git.musl-libc.org/musl
synced 2024-12-16 19:55:38 +00:00
c8a9c22173
unfortunately this eliminates the ability of the compiler to diagnose some dangerous/incorrect usage, but POSIX requires (as an extension to the C language, i.e. CX shaded) that NULL have type void *. plain C allows it to be defined as any null pointer constant. the definition 0L is preserved for C++ rather than reverting to plain 0 to avoid dangerous behavior in non-conforming programs which use NULL as a variadic sentinel. (it's impossible to use (void *)0 for C++ since C++ lacks the proper implicit pointer conversions, and other popular alternatives like the GCC __null extension seem non-conforming to the standard's requirements.)
138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
#ifndef _TIME_H
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#define _TIME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#ifdef __cplusplus
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#define NULL 0L
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#else
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#define NULL ((void*)0)
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#endif
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#define __NEED_size_t
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#define __NEED_time_t
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#define __NEED_clock_t
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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
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|| defined(_BSD_SOURCE)
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#define __NEED_struct_timespec
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#define __NEED_clockid_t
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#define __NEED_timer_t
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#define __NEED_pid_t
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#define __NEED_locale_t
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#endif
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#include <bits/alltypes.h>
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#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
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#define __tm_gmtoff tm_gmtoff
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#define __tm_zone tm_zone
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#endif
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struct tm
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{
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int tm_sec;
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int tm_min;
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int tm_hour;
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int tm_mday;
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int tm_mon;
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int tm_year;
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int tm_wday;
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int tm_yday;
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int tm_isdst;
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long __tm_gmtoff;
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const char *__tm_zone;
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};
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clock_t clock (void);
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time_t time (time_t *);
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double difftime (time_t, time_t);
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time_t mktime (struct tm *);
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size_t strftime (char *__restrict, size_t, const char *__restrict, const struct tm *__restrict);
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struct tm *gmtime (const time_t *);
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struct tm *localtime (const time_t *);
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char *asctime (const struct tm *);
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char *ctime (const time_t *);
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#define CLOCKS_PER_SEC 1000000L
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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
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|| defined(_BSD_SOURCE)
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size_t strftime_l (char * __restrict, size_t, const char * __restrict, const struct tm * __restrict, locale_t);
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struct tm *gmtime_r (const time_t *__restrict, struct tm *__restrict);
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struct tm *localtime_r (const time_t *__restrict, struct tm *__restrict);
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char *asctime_r (const struct tm *__restrict, char *__restrict);
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char *ctime_r (const time_t *, char *);
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void tzset (void);
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struct itimerspec
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{
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struct timespec it_interval;
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struct timespec it_value;
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};
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#define CLOCK_REALTIME 0
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#define CLOCK_MONOTONIC 1
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#define CLOCK_PROCESS_CPUTIME_ID 2
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#define CLOCK_THREAD_CPUTIME_ID 3
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#define CLOCK_MONOTONIC_RAW 4
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#define CLOCK_REALTIME_COARSE 5
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#define CLOCK_MONOTONIC_COARSE 6
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#define CLOCK_BOOTTIME 7
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#define CLOCK_REALTIME_ALARM 8
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#define CLOCK_BOOTTIME_ALARM 9
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#define CLOCK_SGI_CYCLE 10
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#define CLOCK_TAI 11
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#define TIMER_ABSTIME 1
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int nanosleep (const struct timespec *, struct timespec *);
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int clock_getres (clockid_t, struct timespec *);
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int clock_gettime (clockid_t, struct timespec *);
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int clock_settime (clockid_t, const struct timespec *);
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int clock_nanosleep (clockid_t, int, const struct timespec *, struct timespec *);
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int clock_getcpuclockid (pid_t, clockid_t *);
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struct sigevent;
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int timer_create (clockid_t, struct sigevent *__restrict, timer_t *__restrict);
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int timer_delete (timer_t);
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int timer_settime (timer_t, int, const struct itimerspec *__restrict, struct itimerspec *__restrict);
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int timer_gettime (timer_t, struct itimerspec *);
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int timer_getoverrun (timer_t);
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#endif
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#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
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char *strptime (const char *__restrict, const char *__restrict, struct tm *__restrict);
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extern int daylight;
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extern long timezone;
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extern char *tzname[2];
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extern int getdate_err;
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struct tm *getdate (const char *);
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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int stime(time_t *);
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time_t timegm(struct tm *);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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