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sword::CalendarWestern Class Reference

A base class for western-culture calendars. More...

Inheritance diagram for sword::CalendarWestern:

Public Methods
virtual void	convert (Time time, word &day, word &month, word &year, word &hour, word &minute, word &second, word &millisecond) const
	Converts a timestamp into a full 'dmy h:m:s' date value.
virtual void	convert (Time time, word &day, word &month, word &year) const
	Converts a timestamp into a 'dmy' date value.
virtual Time	convert (word day, word month, word year, word hour, word minute, word second, word millisecond) const
	Converts a full 'dmy h:m:s' date value into a timestamp.
virtual Time	convert (word day, word month, word year) const
	Converts a 'dmy' date value into a timestamp (assuming hour is 0:0:0).
virtual bool	isLeapYear (word year) const=0
	Checks whether a year is a leap year or not.
virtual int64	daysInMonth (word month, word year) const=0
	Computes the number of days in a month.
virtual int64	daysInYear (word year) const=0
	Computes the number of days in a year.
virtual int64	daysWithinYear (word day, word month, word year) const=0
	Computes the number of this day within its year (Jan 1st returns 0).
virtual int64	daysBeforeYear (word year) const=0
	Number of days from 1/1/1601 to 1/1/year.
virtual word	weekDay (Time time) const=0
	Computes the day of the week (0=Sunday to 6=Saturday).
virtual Time	easter (word year) const=0
	Computes the easter date for a given year.
virtual bool	isValid (word day, word month, word year, word hour, word minute, word second, word millisecond) const=0
	Validates a 'dmy h:m:s' date value within this Calendar.
virtual int64	dmy2days_ (word day, word month, word year) const=0
	Number of days to day/month/year.
virtual void	days2dmy_ (int64 days, word &day, word &month, word &year) const=0
	Computes the day/month/year from the number of days.

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Detailed Description

A base class for western-culture calendars.

All western-culture calendars assume the same basic calendar structure, as follows, but may differ on other aspects such as the precise definition of the leap years. This class must not be used, it is only a base class.

• 60 seconds per minute
• 60 minutes per hour
• 24 hours a day
• 30 days on apr, jun, sep, nov
• 31 days on jan, mar, may, jul, aug, oct, dec
• 28 days on feb except on normal years
• 29 days on feb on leap years
• 12 month a year
• Days of the week : Sunday to Saturday

See also:

CalendarGregorian, CalendarJulian

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Member Function Documentation

virtual Time sword::CalendarWestern::convert (  word    day, word    month, word    year )  const [virtual]

Converts a 'dmy' date value into a timestamp (assuming hour is 0:0:0). Implements sword::Calendar.

virtual Time sword::CalendarWestern::convert (  word    day, word    month, word    year, word    hour, word    minute, word    second, word    millisecond )  const [virtual]

Converts a full 'dmy h:m:s' date value into a timestamp. Implements sword::Calendar.

virtual void sword::CalendarWestern::convert (  Time    time, word &    day, word &    month, word &    year )  const [virtual]

Converts a timestamp into a 'dmy' date value. Implements sword::Calendar.

virtual void sword::CalendarWestern::convert (  Time    time, word &    day, word &    month, word &    year, word &    hour, word &    minute, word &    second, word &    millisecond )  const [virtual]

Converts a timestamp into a full 'dmy h:m:s' date value. Implements sword::Calendar.

virtual void sword::Calendar::days2dmy_ (  int64    days, word &    day, word &    month, word &    year )  const [pure virtual, inherited]

Computes the day/month/year from the number of days. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual int64 sword::CalendarWestern::daysBeforeYear (  word    year )  const [pure virtual]

Number of days from 1/1/1601 to 1/1/year. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual int64 sword::CalendarWestern::daysInMonth (  word    month, word    year )  const [pure virtual]

Computes the number of days in a month. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual int64 sword::CalendarWestern::daysInYear (  word    year )  const [pure virtual]

Computes the number of days in a year. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual int64 sword::CalendarWestern::daysWithinYear (  word    day, word    month, word    year )  const [pure virtual]

Computes the number of this day within its year (Jan 1st returns 0). Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual int64 sword::Calendar::dmy2days_ (  word    day, word    month, word    year )  const [pure virtual, inherited]

Number of days to day/month/year. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual Time sword::CalendarWestern::easter (  word    year )  const [pure virtual]

Computes the easter date for a given year. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual bool sword::CalendarWestern::isLeapYear (  word    year )  const [pure virtual]

Checks whether a year is a leap year or not. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual bool sword::Calendar::isValid (  word    day, word    month, word    year, word    hour, word    minute, word    second, word    millisecond )  const [pure virtual, inherited]

Validates a 'dmy h:m:s' date value within this Calendar. Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

virtual word sword::CalendarWestern::weekDay (  Time    time )  const [pure virtual]

Computes the day of the week (0=Sunday to 6=Saturday). Implemented in sword::CalendarGregorian, and sword::CalendarJulian.

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