xlnt::datetime Struct Reference

A datetime is a combination of a date and a time. IMPORTANT: The datetime could be in an empty/invalid state, so you may want to call is_null() before calling any functions! More...

#include <datetime.hpp>

Public Member Functions
	datetime (const date &d, const time &t)
	Constructs a datetime from a date and a time. More...
	datetime (int year_, int month_, int day_, int hour_=0, int minute_=0, int second_=0, int microsecond_=0)
	Constructs a datetime from a year, month, and day plus optional hour, minute, second, and microsecond. More...
	datetime ()=default
	Constructs an empty datetime (a call to is_null() will return true). More...
std::string	to_string () const
	Returns a string represenation of this date and time. The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an empty string will be returned. More...
std::string	to_iso_string () const
	Returns an ISO-formatted string representation of this date and time. The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an empty string will be returned. More...
double	to_number (calendar base_date) const
	Returns this datetime as a number of seconds since 1900 or 1904 (depending on base_date provided). The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
bool	operator== (const datetime &comparand) const
	Returns true if this datetime is equivalent to comparand. More...
int	weekday () const
	Calculates and returns the day of the week that this date represents in the range 0 to 6 where 0 represents Sunday. Returns -1 if the weekday could not be determined. More...
int	get_year () const
	Returns the year of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_month () const
	Returns the month of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_day () const
	Returns the day of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_hour () const
	Returns the hour of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_minute () const
	Returns the minute of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_second () const
	Returns the second of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
int	get_microsecond () const
	Returns the microsecond of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown. More...
bool	is_null () const
	Returns whether the date is in an empty/invalid state. More...

Static Public Member Functions
static datetime	now ()
	Returns the current date and time according to the system time. If the current date could not be determined, the date will be in an empty state (is_null() will return true). More...
static datetime	today ()
	Returns the current date and time according to the system time. This is equivalent to datetime::now(). If the current date could not be determined, the date will be in an empty state (is_null() will return true). More...
static datetime	from_number (double number, calendar base_date)
	Returns a datetime from number by converting the integer part into a date and the fractional part into a time according to date::from_number and time::from_number. More...
static datetime	from_iso_string (const std::string &iso_string)
	Returns a datetime equivalent to the ISO-formatted string iso_string. More...

Public Attributes
int	year = 0
	–— TODO IMPORTANT: accessing the members directly is DEPRECATED and will be changed in a further release! Please use the getters instead! More...
int	month = 0
	The month More...
int	day = 0
	The day More...
int	hour = 0
	The hour More...
int	minute = 0
	The minute More...
int	second = 0
	The second More...
int	microsecond = 0
	The microsecond More...

Detailed Description

A datetime is a combination of a date and a time. IMPORTANT: The datetime could be in an empty/invalid state, so you may want to call is_null() before calling any functions!

Constructor & Destructor Documentation

datetime() [1/3]

xlnt::datetime::datetime	(	const date &	d,
		const time &	t
	)

Constructs a datetime from a date and a time.

datetime() [2/3]

xlnt::datetime::datetime	(	int	year_,
		int	month_,
		int	day_,
		int	hour_ = 0,
		int	minute_ = 0,
		int	second_ = 0,
		int	microsecond_ = 0
	)

Constructs a datetime from a year, month, and day plus optional hour, minute, second, and microsecond.

datetime() [3/3]

xlnt::datetime::datetime ( )

default

Constructs an empty datetime (a call to is_null() will return true).

Member Function Documentation

from_iso_string()

static datetime xlnt::datetime::from_iso_string ( const std::string &  iso_string )

static

Returns a datetime equivalent to the ISO-formatted string iso_string.

from_number()

static datetime xlnt::datetime::from_number ( double  number, calendar  base_date  )

static

Returns a datetime from number by converting the integer part into a date and the fractional part into a time according to date::from_number and time::from_number.

get_day()

int xlnt::datetime::get_day

(

)

const

Returns the day of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_hour()

int xlnt::datetime::get_hour

(

)

const

Returns the hour of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_microsecond()

int xlnt::datetime::get_microsecond

(

)

const

Returns the microsecond of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_minute()

int xlnt::datetime::get_minute

(

)

const

Returns the minute of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_month()

int xlnt::datetime::get_month

(

)

const

Returns the month of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_second()

int xlnt::datetime::get_second

(

)

const

Returns the second of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

get_year()

int xlnt::datetime::get_year

(

)

const

Returns the year of the datetime. The datetime could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

is_null()

bool xlnt::datetime::is_null ( ) const

inline

Returns whether the date is in an empty/invalid state.

now()

static datetime xlnt::datetime::now ( )

static

Returns the current date and time according to the system time. If the current date could not be determined, the date will be in an empty state (is_null() will return true).

operator==()

bool xlnt::datetime::operator==

(

const datetime &

comparand

)

const

Returns true if this datetime is equivalent to comparand.

to_iso_string()

std::string xlnt::datetime::to_iso_string

(

)

const

Returns an ISO-formatted string representation of this date and time. The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an empty string will be returned.

to_number()

double xlnt::datetime::to_number

(

calendar

base_date

)

const

Returns this datetime as a number of seconds since 1900 or 1904 (depending on base_date provided). The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an xlnt::invalid_attribute exception will be thrown.

to_string()

std::string xlnt::datetime::to_string

(

)

const

Returns a string represenation of this date and time. The date could be in an empty/invalid state, so you may want to call is_null() first! If this function is called when having an empty/invalid state, an empty string will be returned.

today()

static datetime xlnt::datetime::today ( )

static

Returns the current date and time according to the system time. This is equivalent to datetime::now(). If the current date could not be determined, the date will be in an empty state (is_null() will return true).

weekday()

int xlnt::datetime::weekday

(

)

const

Calculates and returns the day of the week that this date represents in the range 0 to 6 where 0 represents Sunday. Returns -1 if the weekday could not be determined.

Member Data Documentation

day

int xlnt::datetime::day = 0

The day

hour

int xlnt::datetime::hour = 0

The hour

microsecond

int xlnt::datetime::microsecond = 0

The microsecond

minute

int xlnt::datetime::minute = 0

The minute

month

int xlnt::datetime::month = 0

The month

second

int xlnt::datetime::second = 0

The second

year

int xlnt::datetime::year = 0

–— TODO IMPORTANT: accessing the members directly is DEPRECATED and will be changed in a further release! Please use the getters instead!

The year

---

The documentation for this struct was generated from the following file:

• xlnt/utils/datetime.hpp