localtime.c File Reference

#include <precomp.h>
#include <time.h>
#include "bitsfixup.h"

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Macros
#define	_MAX__TIME64_T

Functions
errno_t	localtime_s (struct tm *_tm, const time_t *ptime)
struct tm *	localtime (const time_t *ptime)

Variables
char	_tz_is_set

Macro Definition Documentation

_MAX__TIME64_T

#define _MAX__TIME64_T

Value:

                                                 0x793406fffLL     /* number of seconds from
                                                 00:00:00, 01/01/1970 UTC to
                                                 23:59:59. 12/31/3000 UTC */

Definition at line 14 of file localtime.c.

Function Documentation

localtime()

struct tm * localtime

(

const time_t *

ptime

)

Definition at line 47 of file localtime.c.

{
    time_t time = *ptime;
    struct tm * ptm;
 
    /* Check for invalid time value */
    if (time < 0)
    {
        return 0;
    }
 
    /* Never without */
    if (!_tz_is_set)
        _tzset();
 
    /* Check for overflow */
 
    /* Correct for timezone */
    time -= _timezone;
#if 0
    /* Correct for daylight saving */
    if (_isdstime(time))
    {
        ptm->tm_isdst = 1;
        time -= _dstbias;
    }
#endif
    ptm = gmtime(&time);
 

Referenced by localtime_s().

localtime_s()

errno_t localtime_s	(	struct tm *	_tm,
		const time_t *	ptime
	)

Definition at line 17 of file localtime.c.

{
    /* check for NULL */
    if (!_tm || !ptime )
    {
        if(_tm) memset(_tm, 0xFF, sizeof(struct tm));
        _invalid_parameter(NULL,
                           0,//__FUNCTION__,
                           _CRT_WIDE(__FILE__),
                           __LINE__,
                           0);
        _set_errno(EINVAL);
        return EINVAL;
    }
 
    /* Validate input */
    if (*ptime < 0 || *ptime > _MAX__TIME64_T)
    {
        memset(_tm, 0xFF, sizeof(struct tm));
        _set_errno(EINVAL);
        return EINVAL;
    }
 
    _tm = localtime(ptime);

Referenced by _tctime_s().

Variable Documentation

_tz_is_set

char _tz_is_set

extern

Definition at line 10 of file timezone.c.

Referenced by _tzset(), and localtime().