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_strtime, _wstrtime

  • Článok

Copy the time to a buffer. More secure versions of these functions are available; see _strtime_s, _wstrtime_s.

Syntax

char *_strtime(
   char *timestr
);
wchar_t *_wstrtime(
   wchar_t *timestr
);
template <size_t size>
char *_strtime(
   char (&timestr)[size]
); // C++ only
template <size_t size>
wchar_t *_wstrtime(
   wchar_t (&timestr)[size]
); // C++ only

Parameters

timestr
Time string.

Return value

Returns a pointer to the resulting character string timestr.

Remarks

The _strtime function copies the current local time into the buffer pointed to by timestr. The time is formatted as hh:mm:ss, where hh is two digits that represent the hour in 24-hour notation. mm is two digits for the minutes past the hour, and ss is two digits for seconds. For example, the string 18:23:44 represents 23 minutes and 44 seconds after 6 P.M. The buffer must be at least 9 bytes long.

_wstrtime is a wide-character version of _strtime; the argument and return value of _wstrtime are wide-character strings. These functions behave identically otherwise. If timestr is a NULL pointer or if timestr is formatted incorrectly, the invalid parameter handler is invoked, as described in Parameter validation. If the exception is allowed to continue, these functions return a NULL, and set errno to EINVAL if timestr was a NULL or set errno to ERANGE if timestr is formatted incorrectly.

In C++, these functions have template overloads that invoke the newer, secure counterparts of these functions. For more information, see Secure template overloads.

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Generic-text routine mappings

TCHAR.H routine _UNICODE and _MBCS not defined _MBCS defined _UNICODE defined
_tstrtime _strtime _strtime _wstrtime

Requirements

Routine Required header
_strtime <time.h>
_wstrtime <time.h> or <wchar.h>

For more compatibility information, see Compatibility.

Example

// crt_strtime.c
// compile with: /W3

#include <time.h>
#include <stdio.h>

int main( void )
{
   char tbuffer [9];
   _strtime( tbuffer ); // C4996
   // Note: _strtime is deprecated; consider using _strtime_s instead
   printf( "The current time is %s \n", tbuffer );
}

The current time is 14:21:44

See also

Time management
asctime, _wasctime
ctime, _ctime32, _ctime64, _wctime, _wctime32, _wctime64
gmtime, _gmtime32, _gmtime64
localtime, _localtime32, _localtime64
mktime, _mktime32, _mktime64
time, _time32, _time64
_tzset