DayCounter Class Reference

day counter class More...

#include <ql/time/daycounter.hpp>

Inheritance diagram for DayCounter:

Collaboration diagram for DayCounter:

Classes
class	Impl
	abstract base class for day counter implementations More...

Public Member Functions
	DayCounter ()=default
DayCounter interface
bool	empty () const
	Returns whether or not the day counter is initialized. More...
std::string	name () const
	Returns the name of the day counter. More...
Date::serial_type	dayCount (const Date &, const Date &) const
	Returns the number of days between two dates. More...
Time	yearFraction (const Date &, const Date &, const Date &refPeriodStart=Date(), const Date &refPeriodEnd=Date()) const
	Returns the period between two dates as a fraction of year. More...

Protected Member Functions
	DayCounter (ext::shared_ptr< Impl > impl)

Protected Attributes
ext::shared_ptr< Impl >	impl_

Related Functions
(Note that these are not member functions.)
bool	operator== (const DayCounter &, const DayCounter &)
bool	operator!= (const DayCounter &, const DayCounter &)
std::ostream &	operator<< (std::ostream &, const DayCounter &)

Detailed Description

day counter class

This class provides methods for determining the length of a time period according to given market convention, both as a number of days and as a year fraction.

The Bridge pattern is used to provide the base behavior of the day counter.

Examples

BermudanSwaption.cpp, Bonds.cpp, CDS.cpp, CVAIRS.cpp, CallableBonds.cpp, ConvertibleBonds.cpp, DiscreteHedging.cpp, EquityOption.cpp, FRA.cpp, FittedBondCurve.cpp, MulticurveBootstrapping.cpp, Replication.cpp, and Repo.cpp.

Definition at line 44 of file daycounter.hpp.

Constructor & Destructor Documentation

DayCounter() [1/2]

DayCounter ( ext::shared_ptr< Impl >  impl )

explicitprotected

This constructor can be invoked by derived classes which define a given implementation.

Definition at line 65 of file daycounter.hpp.

DayCounter() [2/2]

DayCounter ( )

default

The default constructor returns a day counter with a null implementation, which is therefore unusable except as a placeholder.

Member Function Documentation

empty()

bool empty

(

)

const

Returns whether or not the day counter is initialized.

Definition at line 113 of file daycounter.hpp.

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name()

std::string name

(

)

const

Returns the name of the day counter.

Warning:

This method is used for output and comparison between day counters. It is not meant to be used for writing switch-on-type code.

Definition at line 117 of file daycounter.hpp.

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dayCount()

Date::serial_type dayCount	(	const Date &	d1,
		const Date &	d2
	)		const

Returns the number of days between two dates.

Definition at line 122 of file daycounter.hpp.

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yearFraction()

Time yearFraction	(	const Date &	d1,
		const Date &	d2,
		const Date &	refPeriodStart = Date(),
		const Date &	refPeriodEnd = Date()
	)		const

Returns the period between two dates as a fraction of year.

Examples

ConvertibleBonds.cpp, and FittedBondCurve.cpp.

Definition at line 128 of file daycounter.hpp.

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Friends And Related Function Documentation

operator==()

bool operator== ( const DayCounter &  , const DayCounter &    )

related

Returns true iff the two day counters belong to the same derived class.

Definition at line 135 of file daycounter.hpp.

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operator!=()

bool operator!= ( const DayCounter &  , const DayCounter &    )

related

Definition at line 140 of file daycounter.hpp.

operator<<()

std::ostream & operator<< ( std::ostream &  , const DayCounter &    )

related

Definition at line 144 of file daycounter.hpp.

Member Data Documentation

impl_

ext::shared_ptr<Impl> impl_

protected

Definition at line 61 of file daycounter.hpp.