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dsDate.h

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/* 
 * $Id: dsDate.h,v 1.11 2003/09/24 11:34:16 dsamersoff Exp $
 */

#ifndef dsDate_h
#define dsDate_h

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif

#include <time.h>

#include <iostream>

#include <dsSmartException.h>
#include <dsform.h>

DECLARE_EXCEPTION(dsDate);


#define BASE_YEAR   70
#define MAX_YEAR  3100
#define YEAR_OFFS 1900
#define LAST_MON    11
#define LAST_MDAY   31
#define LAST_HOUR   23
#define LAST_MIN    59
#define LAST_SEC    59

/* affect wday parameter interpretation for dt_nearest
 */
#define WEEK_STARTS_MON


/* Freq Used formats */
/*ctime out: [Fri Dec 18 13:14:56 1998\n] */
#define DF_CTIME   "... Aaa dd hh:mm:ss YYYY"
#define DF_EUDATE  "DD/MM/YY hh:mm:ss"
#define DF_EUDATEL "DD/MM/YYYY hh:mm:ss"
#define DF_USDATE  "MM/DD/YY hh:mm:ss"
#define DF_USDATEL "MM/DD/YYYY hh:mm:ss"

time_t dt_convert(const char *format, std::istream& is);
time_t dt_convert(const char *format, const char *in);

inline time_t dt_convert(std::istream& is, const char *format)
{ return dt_convert(format, is);
}

std::ostream& dt_format(std::ostream& dest, char *format, time_t time);
char *dt_format(char *dest, int max_size,  char *format, time_t t );


int dt_interval(char *src, char **newptr = 0);


time_t dt_round( time_t t, char *what = "-d");

time_t dt_nearest(int year, int mont, int mday, int wday, int hour = -1, int min = -1);

inline time_t dt_nearest(struct tm *tm)
{ return dt_nearest(tm->tm_year + YEAR_OFFS, tm->tm_mon+1, tm->tm_mday, tm->tm_wday, tm->tm_hour, tm->tm_min);
} 

#endif

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