tmp/tmpdvwck5y9/{from.md → to.md}
RENAMED
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## Header `<ctime>` synopsis <a id="ctime.syn">[[ctime.syn]]</a>
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``` cpp
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#define NULL see [support.types.nullptr]
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#define CLOCKS_PER_SEC see below
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#define TIME_UTC see below
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namespace std {
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using size_t = see [support.types.layout];
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using clock_t = see below;
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using time_t = see below;
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@@ -14,38 +19,40 @@ namespace std {
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struct tm;
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clock_t clock();
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double difftime(time_t time1, time_t time0);
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time_t mktime(tm* timeptr);
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time_t time(time_t* timer);
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int timespec_get(timespec* ts, int base);
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-
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-
char* ctime(const time_t* timer);
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tm* gmtime(const time_t* timer);
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tm* localtime(const time_t* timer);
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size_t strftime(char* s, size_t maxsize, const char* format, const tm* timeptr);
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}
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```
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The contents of the header `<ctime>` are the same as the C standard
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library header `<time.h>`.[^1]
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-
The functions `
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-
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See also: ISO C 7.
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<!-- Link reference definitions -->
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[basic.lookup.argdep]: basic.md#basic.lookup.argdep
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[cpp17.equalitycomparable]: #cpp17.equalitycomparable
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[cpp17.lessthancomparable]: #cpp17.lessthancomparable
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[ctime.syn]: #ctime.syn
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[dcl.constexpr]: dcl.md#dcl.constexpr
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[filesystems]: input.md#filesystems
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[format.formatter]:
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[format.string]:
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[formatter.requirements]:
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[intro.multithread]: basic.md#intro.multithread
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[lex.charset]: lex.md#lex.charset
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[meta.rqmts]: meta.md#meta.rqmts
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[numeric.requirements]: numerics.md#numeric.requirements
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[over.ics.rank]: over.md#over.ics.rank
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@@ -163,10 +170,11 @@ See also: ISO C 7.27
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[time.duration.observer]: #time.duration.observer
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[time.duration.special]: #time.duration.special
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[time.format]: #time.format
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[time.format.spec]: #time.format.spec
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[time.general]: #time.general
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[time.hms]: #time.hms
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[time.hms.members]: #time.hms.members
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[time.hms.nonmembers]: #time.hms.nonmembers
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[time.hms.overview]: #time.hms.overview
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[time.hms.width]: #time.hms.width
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[time.zone.zonedtime.ctor]: #time.zone.zonedtime.ctor
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[time.zone.zonedtime.members]: #time.zone.zonedtime.members
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[time.zone.zonedtime.nonmembers]: #time.zone.zonedtime.nonmembers
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[time.zone.zonedtime.overview]: #time.zone.zonedtime.overview
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[time.zone.zonedtraits]: #time.zone.zonedtraits
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[^1]: `strftime` supports the C conversion specifiers `C`, `D`, `e`,
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`F`, `g`, `G`, `h`, `r`, `R`, `t`, `T`, `u`, `V`, and `z`, and the
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modifiers `E` and `O`.
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## Header `<ctime>` synopsis <a id="ctime.syn">[[ctime.syn]]</a>
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``` cpp
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#define __STDC_VERSION_TIME_H__ 202311L
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#define NULL see [support.types.nullptr]
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#define CLOCKS_PER_SEC see below
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#define TIME_UTC see below
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#define TIME_MONOTONIC see below // optional
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#define TIME_ACTIVE see below // optional
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#define TIME_THREAD_ACTIVE see below // optional
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namespace std {
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using size_t = see [support.types.layout];
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using clock_t = see below;
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using time_t = see below;
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struct tm;
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clock_t clock();
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double difftime(time_t time1, time_t time0);
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time_t mktime(tm* timeptr);
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time_t timegm(tm* timeptr);
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time_t time(time_t* timer);
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int timespec_get(timespec* ts, int base);
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int timespec_getres(timespec* ts, int base);
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tm* gmtime(const time_t* timer);
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tm* gmtime_r(const time_t* timer, tm* buf);
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tm* localtime(const time_t* timer);
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tm* localtime_r(const time_t* timer, tm* buf);
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size_t strftime(char* s, size_t maxsize, const char* format, const tm* timeptr);
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}
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```
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The contents of the header `<ctime>` are the same as the C standard
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library header `<time.h>`.[^1]
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The functions `gmtime` and `localtime` are not required to avoid data
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races [[res.on.data.races]].
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See also: ISO C 7.29
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<!-- Link reference definitions -->
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[basic.lookup.argdep]: basic.md#basic.lookup.argdep
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[cpp17.equalitycomparable]: #cpp17.equalitycomparable
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[cpp17.lessthancomparable]: #cpp17.lessthancomparable
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[ctime.syn]: #ctime.syn
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[dcl.constexpr]: dcl.md#dcl.constexpr
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[filesystems]: input.md#filesystems
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[format.formatter]: text.md#format.formatter
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[format.string]: text.md#format.string
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[formatter.requirements]: text.md#formatter.requirements
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[intro.multithread]: basic.md#intro.multithread
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[lex.charset]: lex.md#lex.charset
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[meta.rqmts]: meta.md#meta.rqmts
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[numeric.requirements]: numerics.md#numeric.requirements
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[over.ics.rank]: over.md#over.ics.rank
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[time.duration.observer]: #time.duration.observer
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[time.duration.special]: #time.duration.special
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[time.format]: #time.format
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[time.format.spec]: #time.format.spec
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[time.general]: #time.general
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[time.hash]: #time.hash
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[time.hms]: #time.hms
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[time.hms.members]: #time.hms.members
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[time.hms.nonmembers]: #time.hms.nonmembers
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[time.hms.overview]: #time.hms.overview
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[time.hms.width]: #time.hms.width
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[time.zone.zonedtime.ctor]: #time.zone.zonedtime.ctor
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[time.zone.zonedtime.members]: #time.zone.zonedtime.members
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[time.zone.zonedtime.nonmembers]: #time.zone.zonedtime.nonmembers
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[time.zone.zonedtime.overview]: #time.zone.zonedtime.overview
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[time.zone.zonedtraits]: #time.zone.zonedtraits
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[unord.hash]: utilities.md#unord.hash
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[^1]: `strftime` supports the C conversion specifiers `C`, `D`, `e`,
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`F`, `g`, `G`, `h`, `r`, `R`, `t`, `T`, `u`, `V`, and `z`, and the
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modifiers `E` and `O`.
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