C/C++ Date and Time Functions
char *_ctime64(const __time64_t *timer);
wchar_t *_wctime64(const __time64_t *timer);
TCHAR *_tctime64(const __time64_t *timer);
Internationalization (I18n) Function Overview
The _ctime64 function converts the calendar time information into a string containing exactly 26 characters. The resulting string is of the form
Tue Jan 27 13:36:27 1989\n\0 where \n is a new line character and \0 is a null character.
_wctime64 is the wide-character version of the function; returning a wide-character string.
_tctime64 is the Generic version of the function; with the _MBCS or _UNICODE compiler flags determining its mapping to either _ctime64 or _wctime64.
I18n Issues
These functions should not be relied upon to print error messages in any language other than English, and furthermore they do not take locale into account when formatting the time string. For these reasons they should be avoided in an internationalized application. However, its worth noting that in some limited instances they still may be useful. For example, for debugging, or for writing to log files or consoles that will not be viewed by the end user.
Minimally, use strftime or
wcsftime since they format dates and times using the LC_TIME category of the current locale.
Or, for a more comprehensive solution, consider using the
ICU package and its
Date/Time formatting functions.
Recommended Function Replacements
C/C++ Date, Time, and Currency Functions
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