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DATETIME.H
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C/C++ Source or Header
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1996-11-24
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/* +++Date last modified: 26-Oct-1996 */
/*
** Header for SNIPPETS date & time function, excluding scalar dates
*/
#ifndef DATETIME__H
#define DATETIME__H
#include "sniptype.h"
/*
** Julian day number functions from JDN_L.C
*/
long ymd_to_jdnl(int y, int m, int d, int julian);
void jdnl_to_ymd(long jdn, int *yy, int *mm, int *dd, int julian);
/*
** Add times from ADDTIME.C
*/
int add_time(unsigned basehrs, unsigned basemins, unsigned basesecs,
int spanhrs, int spanmins, int spansecs,
unsigned *hrs, unsigned *mins, unsigned *secs, int *days);
/*
** Determine the date of Easter for any given year
*/
void easter(int year, int *easter_month, int *easter_day);
/*
** Moon phase from MOON_AGE.C
*/
int moon_age(int month, int day, int year);
/*
** Date parser from PARSDATE.C
*/
typedef enum {USA, ISO, EUROPE} Syntax_T;
Boolean_T parse_date(const char *str, unsigned *year, unsigned *month,
unsigned *day, Syntax_T syntax);
/*
** Time parser from PARSTIME.C
*/
Boolean_T parse_time(const char *str, unsigned *hours, unsigned *mins,
unsigned *secs);
#endif /* DATETIME__H */