A threadsafe port of the calcalcs library. More...

Functions
TECA_EXPORT int	set_current_calendar (const char calendar, const char units)

TECA_EXPORT int	is_leap_year (const char calendar, const char units, int year, int &leap)

TECA_EXPORT int	days_in_month (const char calendar, const char units, int year, int month, int &dpm)

TECA_EXPORT int	date (double val, int year, int month, int day, int hour, int minute, double second, const char dataunits, const char calendar_name)

TECA_EXPORT int	coordinate (int year, int month, int day, int hour, int minute, double second, const char user_unit, const char calendar_name, double *value)

Detailed Description

A threadsafe port of the calcalcs library.

Function Documentation

◆ coordinate()

TECA_EXPORT int teca_calcalcs::coordinate	(	int	year,
		int	month,
		int	day,
		int	hour,
		int	minute,
		double	second,
		const char *	user_unit,
		const char *	calendar_name,
		double *	value
	)

given a year, month, day, hour, minute, second and calendar find the floating point offset. returns 0 upon success.

◆ date()

TECA_EXPORT int teca_calcalcs::date	(	double	val,
		int *	year,
		int *	month,
		int *	day,
		int *	hour,
		int *	minute,
		double *	second,
		const char *	dataunits,
		const char *	calendar_name
	)

Given a floating point offset in the given calendar return year, month, day, hour, minute, seconds. returns 0 upon success.

◆ days_in_month()

TECA_EXPORT int teca_calcalcs::days_in_month	(	const char *	calendar,
		const char *	units,
		int	year,
		int	month,
		int &	dpm
	)

Returns the days per month for the given year/month. Note that during the month that transitions from a Julian to a Gregorian calendar, this might be a strange number of days. this wraps ccs_dpm such that initialization is automatically handled and optimizes for repeat calls. returns 0 on success.

◆ is_leap_year()

TECA_EXPORT int teca_calcalcs::is_leap_year	(	const char *	calendar,
		const char *	units,
		int	year,
		int &	leap
	)

Determine if the specified year is a leap year in the specified calendar. this wraps ccs_isleap such that initialization is automatically handled and optimizes for repeat calls.

Returns: 0 if successful.

◆ set_current_calendar()

TECA_EXPORT int teca_calcalcs::set_current_calendar	(	const char *	calendar,
		const char *	units
	)

high level thread safe initialize the library and select a calendar to use in subsequent calls. return 0 upon success