newlib-cygwin/newlib/libc/time/lcltime.c

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2000-02-18 03:39:52 +08:00
/*
* localtime.c
*/
/*
FUNCTION
<<localtime>>---convert time to local representation
INDEX
localtime
ANSI_SYNOPSIS
#include <time.h>
struct tm *localtime(time_t *<[clock]>);
struct tm *localtime_r(time_t *<[clock]>, struct tm *<[res]>);
TRAD_SYNOPSIS
#include <time.h>
struct tm *localtime(<[clock]>)
time_t *<[clock]>;
struct tm *localtime(<[clock]>, <[res]>)
time_t *<[clock]>;
struct tm *<[res]>;
DESCRIPTION
<<localtime>> converts the time at <[clock]> into local time, then
converts its representation from the arithmetic representation to the
traditional representation defined by <<struct tm>>.
<<localtime>> constructs the traditional time representation in static
storage; each call to <<gmtime>> or <<localtime>> will overwrite the
information generated by previous calls to either function.
<<mktime>> is the inverse of <<localtime>>.
RETURNS
A pointer to the traditional time representation (<<struct tm>>).
PORTABILITY
ANSI C requires <<localtime>>.
<<localtime>> requires no supporting OS subroutines.
*/
#include <time.h>
#include <reent.h>
#ifndef _REENT_ONLY
struct tm *
_DEFUN (localtime, (tim_p),
_CONST time_t * tim_p)
{
return localtime_r (tim_p, &(_REENT->_new._reent._localtime_buf));
}
#endif