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cosmopolitan/libc/time.h

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Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
#ifndef COSMOPOLITAN_LIBC_TIME_H_
#define COSMOPOLITAN_LIBC_TIME_H_
#define TIME_UTC 1
Reduce build graph by another eight percent
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COSMOPOLITAN_C_START_
Initial import
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struct tm {
Revert "Use 64-bit years" This reverts commit cfc3a953ae6ee068fb1fac200523030ca9e76b33.
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int32_t tm_sec;
int32_t tm_min;
int32_t tm_hour;
int32_t tm_mday; /* 1-indexed */
int32_t tm_mon; /* 0-indexed */
int32_t tm_year; /* minus 1900 */
int32_t tm_wday;
int32_t tm_yday;
int32_t tm_isdst;
Initial import
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int64_t tm_gmtoff;
const char *tm_zone;
};
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
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struct timezone {
int32_t tz_minuteswest;
int32_t tz_dsttime;
};
extern char *tzname[2];
extern long timezone;
extern int daylight;
void tzset(void) libcesque;
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
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char *asctime(const struct tm *) libcesque;
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
char *asctime_r(const struct tm *, char *) libcesque;
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
2024-01-09 09:26:03 +00:00
char *strptime(const char *, const char *, struct tm *) libcesque;
int64_t mktime(struct tm *) libcesque;
int64_t timegm(struct tm *) libcesque;
int64_t timelocal(struct tm *) libcesque;
int64_t timeoff(struct tm *, long) libcesque;
size_t strftime(char *, size_t, const char *, const struct tm *) libcesque
strftimeesque(3) libcesque;
size_t wcsftime(wchar_t *, size_t, const wchar_t *,
const struct tm *) libcesque;
struct tm *gmtime(const int64_t *) libcesque;
struct tm *gmtime_r(const int64_t *, struct tm *) libcesque;
struct tm *localtime(const int64_t *) libcesque;
struct tm *localtime_r(const int64_t *, struct tm *) libcesque;
Reduce build graph by another eight percent
2022-08-13 20:11:56 +00:00
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
char *ctime(const int64_t *) libcesque;
char *ctime_r(const int64_t *, char *) libcesque;
double difftime(int64_t, int64_t)
pureconst libcesque;
int stime(const int64_t *) libcesque;
void tzset(void) libcesque;
Replace COSMO define with _COSMO_SOURCE This change might cause ABI breakages for /opt/cosmos. It's needed to help us better conform to header declaration practices.
2023-08-14 03:31:27 +00:00
#ifdef _COSMO_SOURCE
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
extern const char kWeekdayNameShort[7][4];
extern const char kWeekdayName[7][10];
extern const char kMonthNameShort[12][4];
extern const char kMonthName[12][10];
extern const unsigned short kMonthYearDay[2][12];
#define iso8601 __iso8601
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
2024-01-09 09:26:03 +00:00
char *iso8601(char[hasatleast 20], struct tm *) libcesque;
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
#define iso8601us __iso8601us
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
2024-01-09 09:26:03 +00:00
char *iso8601us(char[hasatleast 27], struct tm *, long) libcesque;
Replace COSMO define with _COSMO_SOURCE This change might cause ABI breakages for /opt/cosmos. It's needed to help us better conform to header declaration practices.
2023-08-14 03:31:27 +00:00
#endif /* _COSMO_SOURCE */
Create ELF aliases for identical symbols This change greatly reduces the number of modules that need to be compiled. The only issue right now is that sometimes when viewing symbol table entries, the aliased symbol is chosen.
2023-06-06 10:30:37 +00:00
Reduce build graph by another eight percent
2022-08-13 20:11:56 +00:00
COSMOPOLITAN_C_END_
Implement proper time zone support Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
2024-05-05 06:05:36 +00:00
#endif /* COSMOPOLITAN_LIBC_TIME_H_ */
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