C string containing the date and time information in a human-readable format. The resulting string has the following format: Www Mmm dd hh:mm:ss yyyyWww - the day of the week (one of Mon, Tue, Wed, Thu, Fri, Sat
C Standard Library ctime Function - Learn about the ctime function in the C Standard Library, its usage, parameters, and return values for date and time formatting.
Functions C++ clock_tclock();doubledifftime(time_ttime1,time_ttime0);time_tmktime(struct tm* timeptr);time_ttime(time_t* timer);inttimespec_get(timespec* ts,intbase);char*asctime(conststruct tm* timeptr);char*ctime(consttime_t* timer);struct tm*gmtime(consttime_t* timer);struct tm...
More secure versions of these functions are available; see ctime_s, _ctime32_s, _ctime64_s, _wctime_s, _wctime32_s, _wctime64_s. Syntax C Copy char *ctime( const time_t *sourceTime ); char *_ctime32( const __time32_t *sourceTime ); char *_ctime64( const __time64_t...
_wctime and _wctime64 are the wide-character version of ctime and _ctime64; returning a pointer to wide-character string. Otherwise, _ctime64, _wctime, and _wctime64 behave identically to ctime.These functions validate their parameters. If timer is a null pointer, or if the ...
More secure versions of these functions are available; see ctime_s, _ctime32_s, _ctime64_s, _wctime_s, _wctime32_s, _wctime64_s. 複製 char *ctime( const time_t *timer ); char *_ctime32( const __time32_t *timer ) ; char *_ctime64( const __time64_t *timer...
The asctime() and ctime() functions, and other time functions can use a common, statically allocated buffer to hold the return string. Each call to one of these functions might destroy the result of the previous call. The asctime_r(), ctime_r(), gmtime_r(), and localtime_r() functio...
Each of these functions returns a pointer to the character string result. Iftimerepresents a date before midnight, January 1, 1970, UTC, the function returnsNULL. Parameter timer Pointer to stored time Remarks Thectimefunction converts a time value stored as atime_tstructure into a character str...
Each of these functions returns a pointer to the character string result. Iftimerepresents a date before midnight, January 1, 1970, UTC, the function returnsNULL. Parameter timer Pointer to stored time Remarks Thectimefunction converts a time value stored as atime_tstructure into a character str...
destroy the result of the previous call. Theasctime_r(),ctime_r(),gmtime_r(), andlocaltime_r()functions do not use a common, statically allocated buffer to hold the return string. These functions can be used in place ofasctime(),ctime(),gmtime(), andlocaltime()if reentrancy is ...