julian_day.h

/*
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 *  Copyright (C) 2000 - 2005 Liam Girdwood  
 */

#ifndef _LN_JULIAN_DAY_H
#define _LN_JULIAN_DAY_H

#include <time.h>
#include <libnova/ln_types.h>

#ifdef __cplusplus
extern "C" {
#endif

double LIBNOVA_EXPORT ln_get_julian_day(struct ln_date *date);

void LIBNOVA_EXPORT ln_get_date(double JD, struct ln_date *date);

void LIBNOVA_EXPORT ln_get_date_from_timet (time_t *t, struct ln_date *date);

void LIBNOVA_EXPORT ln_get_date_from_tm(struct tm *t, struct ln_date *date);

void LIBNOVA_EXPORT ln_get_local_date(double JD, struct ln_zonedate *zonedate);

unsigned int LIBNOVA_EXPORT ln_get_day_of_week(struct ln_date *date);
        
double LIBNOVA_EXPORT ln_get_julian_from_sys();


void LIBNOVA_EXPORT ln_get_date_from_sys(struct ln_date *date);
        
double LIBNOVA_EXPORT ln_get_julian_from_timet(time_t * in_time);

void LIBNOVA_EXPORT ln_get_timet_from_julian(double JD, time_t * in_time);

double LIBNOVA_EXPORT ln_get_julian_local_date(struct ln_zonedate* zonedate);
        
int LIBNOVA_EXPORT ln_get_date_from_mpc(struct ln_date *date, char *mpc_date);
        
double LIBNOVA_EXPORT ln_get_julian_from_mpc(char *mpc_date);

void LIBNOVA_EXPORT ln_date_to_zonedate(struct ln_date *date,
        struct ln_zonedate *zonedate, long gmtoff);

void LIBNOVA_EXPORT ln_zonedate_to_date(struct ln_zonedate *zonedate,
        struct ln_date *date);

#ifdef __cplusplus
};
#endif

#endif