fnss::Quantity Class Reference

#include <quantity.h>

Public Member Functions
	Quantity (const double &value, const std::string &unit, const MeasurementUnit &converter)
	Quantity (const double &value, const MeasurementUnit &converter)
	Quantity (const std::string &str, const MeasurementUnit &converter)
	Quantity (const MeasurementUnit &converter)
void	fromString (const std::string &str)
std::string	toString (const std::string &separator="") const
void	convert (const std::string &unit)
double	getValue () const
void	setValue (const double &value)
std::string	getUnit () const
void	setUnit (const std::string &unit)
const MeasurementUnit &	getMeasurementUnit () const
Quantity &	operator= (const Quantity &other)
bool	operator< (const Quantity &other) const
bool	operator<= (const Quantity &other) const
bool	operator> (const Quantity &other) const
bool	operator>= (const Quantity &other) const
bool	operator== (const Quantity &other) const

Detailed Description

Models a quantity and allows for conversions between measurement units of the same type.

Author

Cosmin Cocora.

Constructor & Destructor Documentation

fnss::Quantity::Quantity	(	const double &	value,
		const std::string &	unit,
		const MeasurementUnit &	converter
	)

Constructor with explicit numerical value and unit.

Parameters

value	the numeric value of the quantity.
unit	the value of the quantity's unit.
converter	the MeasurementUnit object used for conversions. The object is not copied, only the reference is stored.

fnss::Quantity::Quantity	(	const double &	value,
		const MeasurementUnit &	converter
	)

Constructor with explicit numerical value.

The unit is assigned to the base of this->converter. Mainly declared to avoid calls of the type Quantity(0, someUnit) that would otherwise match the string constructor.

Parameters

value	the numeric value of the quantity.
converter	the MeasurementUnit object used for conversions. The object is not copied, only the reference is stored.

fnss::Quantity::Quantity	(	const std::string &	str,
		const MeasurementUnit &	converter
	)

Constructor that parses a string to obtain the numerical value and unit.

If not provided in the input, the unit is assumed to be the base of this->converter.

Parameters

str	the std::string to be parsed for value and unit data.
converter	the MeasurementUnit object used for conversions. The object is not copied, only the reference is stored.

fnss::Quantity::Quantity

(

const MeasurementUnit &

converter

)

Constructor.

Parameters

converter

the MeasurementUnit object used for conversions. The object is not copied, only the reference is stored.

Member Function Documentation

void fnss::Quantity::convert

(

const std::string &

unit

)

Convert to the specified unit(eg. from GB/s to Tb/h).

Parameters

unit	the unit to convert to.

void fnss::Quantity::fromString

(

const std::string &

str

)

Parse a string to obtain the numerical value and unit. The previously stored data is discarded.

Parameters

str	the std::string to be parsed for value and unit data.

const MeasurementUnit & fnss::Quantity::getMeasurementUnit

(

)

const

Get a const reference to the MeasurementUnit object that is using for conversions.

Returns

the const reference to the MeasurementUnit object being used.

std::string fnss::Quantity::getUnit

(

)

const

Get method for the unit of the quantity.

Returns

the unit of the quantity.

double fnss::Quantity::getValue

(

)

const

Get method for the numerical value of the quantity.

Returns

the numerical value of the quantity.

bool fnss::Quantity::operator<

(

const Quantity &

other

)

const

Comparison operator that takes into account the quantity's measurement unit.

bool fnss::Quantity::operator<=

(

const Quantity &

other

)

const

Comparison operator that takes into account the quantity's measurement unit.

Quantity & fnss::Quantity::operator=

(

const Quantity &

other

)

Assignment operator.

Throws an exception if the MeasurementUnit reference of the other object has a different base from the MeasurementUnit reference of .

bool fnss::Quantity::operator==

(

const Quantity &

other

)

const

Comparison operator that takes into account the quantity's measurement unit.

bool fnss::Quantity::operator>

(

const Quantity &

other

)

const

Comparison operator that takes into account the quantity's measurement unit.

bool fnss::Quantity::operator>=

(

const Quantity &

other

)

const

Comparison operator that takes into account the quantity's measurement unit.

void fnss::Quantity::setUnit

(

const std::string &

unit

)

Set method for the unit of the quantity.

Parameters

unit	the unit to set.

void fnss::Quantity::setValue

(

const double &

value

)

Set method for the numerical value of the quantity.

Parameters

value

the numerical value to set.

std::string fnss::Quantity::toString

(

const std::string &

separator = ""

)

const

Obtain a string representation of the object(eg. "5 GB/s").

If not provided in the input, the unit is assumed to be the base of this->converter.

Parameters

separator

the std::the separator to insert between value and unit.

Returns

the std::string representation of the object.

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The documentation for this class was generated from the following files:

• fnss/model/quantity.h
• fnss/model/quantity.cpp