/* 
 * time.h
 *
 * Date and time functions and types.
 *
 * This file is part of the Mingw32 package.
 *
 * Contributors:
 *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
 *
 *  THIS SOFTWARE IS NOT COPYRIGHTED
 *
 *  This source code is offered for use in the public domain. You may
 *  use, modify or distribute it freely.
 *
 *  This code is distributed in the hope that it will be useful but
 *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
 *  DISCLAIMED. This includes but is not limited to warranties of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * $Revision$
 * $Author$
 * $Date$
 *
 */
/* Appropriated for Reactos Crtdll by Ariadne */
#ifndef _TIME_H_
#define _TIME_H_

#define __need_wchar_t
#define __need_size_t
#include <msvcrt/stddef.h>


/*
 * Number of clock ticks per second. A clock tick is the unit by which
 * processor time is measured and is returned by 'clock'.
 */
#define CLOCKS_PER_SEC  1000.0
#define CLK_TICK    CLOCKS_PER_SEC


/*
 * Need a definition of time_t.
 */
#include <msvcrt/sys/types.h>

/*
 * A type for storing the current time and date. This is the number of
 * seconds since midnight Jan 1, 1970.
 * NOTE: Normally this is defined by the above include of sys/types.h
 */
#ifndef _TIME_T_
typedef long    time_t;
#define _TIME_T_
#endif

/*
 * A type for measuring processor time (in clock ticks).
 */
#ifndef _CLOCK_T_
typedef long    clock_t;
#define _CLOCK_T_
#endif

/*
 * A structure for storing all kinds of useful information about the
 * current (or another) time.
 */
struct tm
{
    int tm_sec;     /* Seconds: 0-59 (K&R says 0-61?) */
    int tm_min;     /* Minutes: 0-59 */
    int tm_hour;    /* Hours since midnight: 0-23 */
    int tm_mday;    /* Day of the month: 1-31 */
    int tm_mon;     /* Months *since* january: 0-11 */
    int tm_year;    /* Years since 1900 */
    int tm_wday;    /* Days since Sunday (0-6) */
    int tm_yday;    /* Days since Jan. 1: 0-365 */
    int tm_isdst;   /* +1 Daylight Savings Time, 0 No DST,
                 * -1 don't know */
    char *tm_zone;
    int tm_gmtoff;
};

#ifdef  __cplusplus
extern "C" {
#endif

clock_t clock(void);
time_t time(time_t*);
double difftime(time_t, time_t);
time_t mktime(struct tm*);

/*
 * These functions write to and return pointers to static buffers that may
 * be overwritten by other function calls. Yikes!
 *
 * NOTE: localtime, and perhaps the others of the four functions grouped
 * below may return NULL if their argument is not 'acceptable'. Also note
 * that calling asctime with a NULL pointer will produce an Invalid Page
 * Fault and crap out your program. Guess how I know. Hint: stat called on
 * a directory gives 'invalid' times in st_atime etc...
 */
char* asctime(const struct tm*);
char* ctime(const time_t*);
struct tm* gmtime(const time_t*);
struct tm* localtime(const time_t*);

size_t strftime(char*, size_t, const char*, const struct tm*);
size_t wcsftime(wchar_t*, size_t, const wchar_t*, const struct tm*);

wchar_t* _wasctime(const struct tm *timeptr);
wchar_t* _wctime(const time_t * const timep);
char* _strdate(const char *datestr);
wchar_t* _wstrdate(const wchar_t *datestr);
char* _strtime(char* buf);
wchar_t* _wstrtime(wchar_t* buf);

#ifdef  __cplusplus
}
#endif

#endif  /* Not _TIME_H_ */