Classes
class	PosixRule

class	TZFile

class	TZRule

Functions
qint64	dateTime2stamp (qint64 days, quint8 h, quint8 m, quint8 s)

qint64	dateTime2stamp (int y, quint8 mon, quint8 day, quint8 hr, quint8 min, quint8 s)

qint64	daysSinceEpoch (int year, int month=1, int day=1)

qint64	decodeInt (const QByteArray &a, int s=4)

qint64	decodeInt64 (const QByteArray &a)

qint64	fdiv (qint64 num, qint64 div)

qint64	firstWeekDayOf (int year, int month, int wday)

TZLIB_EXPORT TZFile &	getRegistryZone (QString zn)

bool	isLeapYear (int year)

qint64	lastWeekDayOf (int year, int month, int wday)

void	offset2Date (qint64 off, qint16 &y, quint8 &m, quint8 &d)

int	pmod (qint64 num, int mod)

void	setSystemZoneFile (QString)

void	stamp2Date (qint64 off, qint16 &y, quint8 &m, quint8 &d)

void	stamp2Time (qint64 stamp, quint8 &h, quint8 &m, quint8 &s)

QString	systemDefaultDiscover ()

int	weekDayOf (int year, int month=1, int day=1)

int	weekDaySinceEpoch (qint64 daySinceEpoch)

Variables
static const qint64	SecondsPerDay =86400

Function Documentation

qint64 TimeZoneLib::dateTime2stamp	(	qint64	days,
		quint8	h,
		quint8	m,
		quint8	s
	)

inline

converts date and time to a time stamp, UTC is assumed

Parameters

days	the date in days since Epoch
h:m:s	exact time of the day (0<=h<24)

References SecondsPerDay.

Referenced by dateTime2stamp(), and TimeStamp::moveToZone().

qint64 TimeZoneLib::dateTime2stamp	(	int	y,
		quint8	mon,
		quint8	day,
		quint8	hr,
		quint8	min,
		quint8	s
	)

inline

converts date and time to a time stamp, UTC is assumed

Parameters

y	year
mon	the month (1-12)
day	day of the month (1-31)
hr:min:s	exact time of the day (0<=hr<24)

References dateTime2stamp(), and daysSinceEpoch().

qint64 TimeZoneLib::daysSinceEpoch	(	int	year,
		int	month = `1`,
		int	day = `1`
	)

inline

returns how many days have passed since Epoch to this day

Returns: 0 for 1/1/1970, positive values after Epoch, negative values befor Epoch

Parameters

year	the year to be calculated
month	the month to be calculates, must be between 1 and 12, assumes january if none given
day	the day of the month to be calculated, must be between 1 and 31, assumes the 1st if none given

References isLeapYear().

Referenced by calcTimeStamp(), dateTime2stamp(), firstWeekDayOf(), lastWeekDayOf(), TimeZoneLib::PosixRule::rulesForYear(), and weekDayOf().

qint64 TimeZoneLib::decodeInt	(	const QByteArray &	a,
		int	s = `4`
	)

inline

decodes a signed big endian integer from a byte array, per default it decodes a 32bit int

Parameters

a	the array, it must be at least s bytes long
s	the length of the int in bytes

Referenced by decodeInt64().

qint64 TimeZoneLib::decodeInt64 ( const QByteArray & a )

inline

convenience function: decodes a 64bit integer from an array, see decodeInt

References decodeInt().

qint64 TimeZoneLib::fdiv	(	qint64	num,
		qint64	div
	)

inline

Referenced by TimeStamp::addMSecs(), and stamp2Date().

qint64 TimeZoneLib::firstWeekDayOf	(	int	year,
		int	month,
		int	wday
	)

inline

returns the first day in a month that is a specific day of the week, 0 and 7 are sunday

Returns: offset in days from Epoch

References daysSinceEpoch(), pmod(), and weekDaySinceEpoch().

TZFile & TimeZoneLib::getRegistryZone ( QString zn )

References initDefault(), TimeZoneLib::TZFile::isValid(), registry, and zoneRegExp.

Referenced by TimeStamp::defaultZoneFile(), TimeStamp::loadZone(), TimeStamp::moveToZone(), TimeStamp::setZone(), TimeStamp::systemLocalZoneFile(), TimeStamp::zoneAbbreviation(), and TimeStamp::zoneFile().

bool TimeZoneLib::isLeapYear ( int year )

inline

returns true if the given year is a leap year according to the Gregorian calendar

Referenced by calcTimeStamp(), daysSinceEpoch(), and offset2Date().

qint64 TimeZoneLib::lastWeekDayOf	(	int	year,
		int	month,
		int	wday
	)

inline

returns the last day in a month that is a specific day of the week, 0 and 7 are sunday

Returns: offset in days from Epoch

References daysSinceEpoch(), pmod(), and weekDaySinceEpoch().

Referenced by calcTimeStamp().

void TimeZoneLib::offset2Date	(	qint64	off,
		qint16 &	y,
		quint8 &	m,
		quint8 &	d
	)

inline

returns the date represented by this offset from Epoch (in days)

References isLeapYear().

Referenced by stamp2Date().

int TimeZoneLib::pmod	(	qint64	num,
		int	mod
	)

inline

Referenced by TimeStamp::addMSecs(), firstWeekDayOf(), lastWeekDayOf(), stamp2Time(), weekDayOf(), and weekDaySinceEpoch().

void TimeZoneLib::setSystemZoneFile ( QString z )

References systemZone.

Referenced by systemDefaultDiscover().

void TimeZoneLib::stamp2Date	(	qint64	off,
		qint16 &	y,
		quint8 &	m,
		quint8 &	d
	)

inline

converts the time stamp to a date (assumes UTC)

References fdiv(), and offset2Date().

Referenced by TimeZoneLib::PosixRule::nextRule(), TimeZoneLib::PosixRule::ruleForLocalTime(), and TimeZoneLib::PosixRule::ruleForTime().

void TimeZoneLib::stamp2Time	(	qint64	stamp,
		quint8 &	h,
		quint8 &	m,
		quint8 &	s
	)

inline

returns the time represented by this unix timestamp for UTC

References pmod().

QString TimeZoneLib::systemDefaultDiscover ( )

References efiles, setSystemZoneFile(), and tfiles.

Referenced by TimeStamp::setDefaultZone().

int TimeZoneLib::weekDayOf	(	int	year,
		int	month = `1`,
		int	day = `1`
	)

inline

returns the week day of a specific date

Returns: 0 for sunday, 1 for monday, ...etc., 6 for saturday

Parameters

year	the year to be calculated
month	the month to be calculates, must be between 1 and 12, assumes january if none given
day	the day of the month to be calculated, must be between 1 and 31, assumes the 1st if none given

References daysSinceEpoch(), and pmod().

Referenced by TimeStamp::weekDay().

int TimeZoneLib::weekDaySinceEpoch ( qint64 daySinceEpoch )

inline

returns the week day of a specific day offset from Epoch

Returns: 0 for sunday, 1 for monday, ...etc., 6 for saturday

References pmod().

Referenced by firstWeekDayOf(), and lastWeekDayOf().

Variable Documentation

const qint64 TimeZoneLib::SecondsPerDay =86400

static

the amount of seconds per Day

Referenced by TimeStamp::addDays(), calcTimeStamp(), dateTime2stamp(), and TimeZoneLib::PosixRule::rulesForYear().

Classes

Functions

Variables

Function Documentation

Variable Documentation