dateconv.h File Reference

#include "cgeneral.h"
#include "cdate.h"
#include "mdydate.h"

Defines
#define	JPMCDS_SUNDAY   0
#define	JPMCDS_MONDAY   1
#define	JPMCDS_TUESDAY   2
#define	JPMCDS_WEDNESDAY   3
#define	JPMCDS_THURSDAY   4
#define	JPMCDS_FRIDAY   5
#define	JPMCDS_SATURDAY   6
#define	JPMCDS_TDATE_BASE_YEAR   1601
#define	JPMCDS_IS_LEAP(year)
Functions
TDate	JpmcdsDate (long year, long month, long day)
	Converts year, month, day to a date and returns the date.
int	JpmcdsDateToMDY (TDate date, TMonthDayYear *mdyDate)
	Converts TDate to Month, Day, Year.
int	JpmcdsMDYToDate (TMonthDayYear *mdyDate, TDate *date)
	Converts Month, Day, Year to TDate.
int	JpmcdsDayOfWeek (TDate date, long *dayOfWeek)
	Converts TDate to day of week (0-6).
int	JpmcdsNormalizeMDY (TMonthDayYear *mdy)
	Normalizes a month/day/year.
int	JpmcdsDaysInMonth (long year, long month)
	Returns # days in month.
int	JpmcdsDateToEOM (TDate inDate, TDate *outDate)
	Moves a date to the end of the current month.

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Detailed Description

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Define Documentation

#define JPMCDS_IS_LEAP

(

year

)

Value:

(                                              \
                            (((year)%4 == 0) && ((year)%100 != 0)) || \
                            ((year)%400 == 0)                            \
                          )

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Function Documentation

TDate JpmcdsDate	(	long	year,
		long	month,
		long	day
	)

Converts year, month, day to a date and returns the date.

This is useful for initializing dates within test routines. Returns FAILURE for invalid dates.

int JpmcdsDateToMDY	(	TDate	date,
		TMonthDayYear *	mdyDate
	)

Converts TDate to Month, Day, Year.

NOTE: routine was written to avoid divides especially as well as multiplies. Whenever possible, the type int is used-which is presumably the fastest type on a given architecture.

int JpmcdsDayOfWeek	(	TDate	date,
		long *	dayOfWeek
	)

Converts TDate to day of week (0-6).

0 is Sunday, 1 is Monday.... 6 is Saturday

int JpmcdsMDYToDate	(	TMonthDayYear *	mdyDate,
		TDate *	date
	)

Converts Month, Day, Year to TDate.

NOTE: routine was written to avoid divides (especially) and multiplies.

int JpmcdsNormalizeMDY

(

TMonthDayYear *

mdy

)

Normalizes a month/day/year.

If month is out of range, it is brought into range, and the years are incremented or decremented as appropriate. If day belongs to a month/year combination which does not exist, (such as April 31) the day is reduced so that it becomes valid.(to April 30).