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ICU 77.1: icu::MeasureUnit Class Reference

A unit such as length, mass, volume, currency, etc. More...

#include <measunit.h>

A unit such as length, mass, volume, currency, etc.

A unit is coupled with a numeric amount to produce a Measure.

Stable:

ICU 3.0

Definition at line 405 of file measunit.h.

Default constructor.

Populates the instance with the base dimensionless unit, which means that there will be no unit on the formatted number.

Stable:

ICU 3.0

Returns by pointer, unit of area: acre.

Caller owns returned value and must free it. Also see getAcre().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: acre-foot.

Caller owns returned value and must free it. Also see getAcreFoot().

Parameters

Stable:

ICU 54

Returns by pointer, unit of electric: ampere.

Caller owns returned value and must free it. Also see getAmpere().

Parameters

Stable:

ICU 54

Returns by pointer, unit of angle: arc-minute.

Caller owns returned value and must free it. Also see getArcMinute().

Parameters

Stable:

ICU 53

Returns by pointer, unit of angle: arc-second.

Caller owns returned value and must free it. Also see getArcSecond().

Parameters

Stable:

ICU 53

Returns by pointer, unit of length: astronomical-unit.

Caller owns returned value and must free it. Also see getAstronomicalUnit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of pressure: atmosphere.

Caller owns returned value and must free it. Also see getAtmosphere().

Parameters

Stable:

ICU 63

Returns by pointer, unit of pressure: bar.

Caller owns returned value and must free it. Also see getBar().

Parameters

Stable:

ICU 65

Returns by pointer, unit of volume: barrel.

Caller owns returned value and must free it. Also see getBarrel().

Parameters

Stable:

ICU 64

Returns by pointer, unit of speed: beaufort.

Caller owns returned value and must free it. Also see getBeaufort().

Parameters

Stable:

ICU 73

Returns by pointer, unit of digital: bit.

Caller owns returned value and must free it. Also see getBit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of energy: british-thermal-unit.

Caller owns returned value and must free it. Also see getBritishThermalUnit().

Parameters

Stable:

ICU 64

Returns by pointer, unit of volume: bushel.

Caller owns returned value and must free it. Also see getBushel().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: byte.

Caller owns returned value and must free it. Also see getByte().

Parameters

Stable:

ICU 54

Returns by pointer, unit of energy: calorie.

Caller owns returned value and must free it. Also see getCalorie().

Parameters

Stable:

ICU 54

Returns by pointer, unit of light: candela.

Caller owns returned value and must free it. Also see getCandela().

Parameters

Stable:

ICU 68

Returns by pointer, unit of mass: carat.

Caller owns returned value and must free it. Also see getCarat().

Parameters

Stable:

ICU 54

Returns by pointer, unit of temperature: celsius.

Caller owns returned value and must free it. Also see getCelsius().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: centiliter.

Caller owns returned value and must free it. Also see getCentiliter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: centimeter.

Caller owns returned value and must free it. Also see getCentimeter().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: century.

Caller owns returned value and must free it. Also see getCentury().

Parameters

Stable:

ICU 56

Returns by pointer, unit of volume: cubic-centimeter.

Caller owns returned value and must free it. Also see getCubicCentimeter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cubic-foot.

Caller owns returned value and must free it. Also see getCubicFoot().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cubic-inch.

Caller owns returned value and must free it. Also see getCubicInch().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cubic-kilometer.

Caller owns returned value and must free it. Also see getCubicKilometer().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: cubic-meter.

Caller owns returned value and must free it. Also see getCubicMeter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cubic-mile.

Caller owns returned value and must free it. Also see getCubicMile().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: cubic-yard.

Caller owns returned value and must free it. Also see getCubicYard().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cup.

Caller owns returned value and must free it. Also see getCup().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: cup-metric.

Caller owns returned value and must free it. Also see getCupMetric().

Parameters

Stable:

ICU 56

Returns by pointer, unit of mass: dalton.

Caller owns returned value and must free it. Also see getDalton().

Parameters

Stable:

ICU 64

Returns by pointer, unit of duration: day.

Caller owns returned value and must free it. Also see getDay().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: day-person.

Caller owns returned value and must free it. Also see getDayPerson().

Parameters

Stable:

ICU 64

Returns by pointer, unit of duration: decade.

Caller owns returned value and must free it. Also see getDecade().

Parameters

Stable:

ICU 65

Returns by pointer, unit of volume: deciliter.

Caller owns returned value and must free it. Also see getDeciliter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: decimeter.

Caller owns returned value and must free it. Also see getDecimeter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of angle: degree.

Caller owns returned value and must free it. Also see getDegree().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: dessert-spoon.

Caller owns returned value and must free it. Also see getDessertSpoon().

Parameters

Stable:

ICU 68

Returns by pointer, unit of volume: dessert-spoon-imperial.

Caller owns returned value and must free it. Also see getDessertSpoonImperial().

Parameters

Stable:

ICU 68

Returns by pointer, unit of graphics: dot.

Caller owns returned value and must free it. Also see getDot().

Parameters

Stable:

ICU 68

Returns by pointer, unit of graphics: dot-per-centimeter.

Caller owns returned value and must free it. Also see getDotPerCentimeter().

Parameters

Stable:

ICU 65

Returns by pointer, unit of graphics: dot-per-inch.

Caller owns returned value and must free it. Also see getDotPerInch().

Parameters

Stable:

ICU 65

Returns by pointer, unit of volume: dram.

Caller owns returned value and must free it. Also see getDram().

Parameters

Stable:

ICU 68

Returns by pointer, unit of volume: drop.

Caller owns returned value and must free it. Also see getDrop().

Parameters

Stable:

ICU 68

Returns by pointer, unit of area: dunam.

Caller owns returned value and must free it. Also see getDunam().

Parameters

Stable:

ICU 64

Returns by pointer, unit of mass: earth-mass.

Caller owns returned value and must free it. Also see getEarthMass().

Parameters

Stable:

ICU 64

Returns by pointer, unit of length: earth-radius.

Caller owns returned value and must free it. Also see getEarthRadius().

Parameters

Stable:

ICU 68

Returns by pointer, unit of energy: electronvolt.

Caller owns returned value and must free it. Also see getElectronvolt().

Parameters

Stable:

ICU 64

Returns by pointer, unit of graphics: em.

Caller owns returned value and must free it. Also see getEm().

Parameters

Stable:

ICU 65

Returns by pointer, unit of temperature: fahrenheit.

Caller owns returned value and must free it. Also see getFahrenheit().

Parameters

Stable:

ICU 53

Returns by pointer, unit of length: fathom.

Caller owns returned value and must free it. Also see getFathom().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: fluid-ounce.

Caller owns returned value and must free it. Also see getFluidOunce().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: fluid-ounce-imperial.

Caller owns returned value and must free it. Also see getFluidOunceImperial().

Parameters

Stable:

ICU 64

Returns by pointer, unit of energy: foodcalorie.

Caller owns returned value and must free it. Also see getFoodcalorie().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: foot.

Caller owns returned value and must free it. Also see getFoot().

Parameters

Stable:

ICU 53

Returns by pointer, unit of length: furlong.

Caller owns returned value and must free it. Also see getFurlong().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: gallon.

Caller owns returned value and must free it. Also see getGallon().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: gallon-imperial.

Caller owns returned value and must free it. Also see getGallonImperial().

Parameters

Stable:

ICU 57

Returns by pointer, unit of pressure: gasoline-energy-density.

Caller owns returned value and must free it. Also see getGasolineEnergyDensity().

Parameters

Stable:

ICU 74

Returns by pointer, unit of temperature: generic.

Caller owns returned value and must free it. Also see getGenericTemperature().

Parameters

Stable:

ICU 56

Returns by pointer, unit of acceleration: g-force.

Caller owns returned value and must free it. Also see getGForce().

Parameters

Stable:

ICU 53

Returns by pointer, unit of digital: gigabit.

Caller owns returned value and must free it. Also see getGigabit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: gigabyte.

Caller owns returned value and must free it. Also see getGigabyte().

Parameters

Stable:

ICU 54

Returns by pointer, unit of frequency: gigahertz.

Caller owns returned value and must free it. Also see getGigahertz().

Parameters

Stable:

ICU 54

Returns by pointer, unit of power: gigawatt.

Caller owns returned value and must free it. Also see getGigawatt().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: grain.

Caller owns returned value and must free it. Also see getGrain().

Parameters

Stable:

ICU 68

Returns by pointer, unit of mass: gram.

Caller owns returned value and must free it. Also see getGram().

Parameters

Stable:

ICU 53

Returns by pointer, unit of area: hectare.

Caller owns returned value and must free it. Also see getHectare().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: hectoliter.

Caller owns returned value and must free it. Also see getHectoliter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of pressure: hectopascal.

Caller owns returned value and must free it. Also see getHectopascal().

Parameters

Stable:

ICU 53

Returns by pointer, unit of frequency: hertz.

Caller owns returned value and must free it. Also see getHertz().

Parameters

Stable:

ICU 54

Returns by pointer, unit of power: horsepower.

Caller owns returned value and must free it. Also see getHorsepower().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: hour.

Caller owns returned value and must free it. Also see getHour().

Parameters

Stable:

ICU 53

Returns by pointer, unit of length: inch.

Caller owns returned value and must free it. Also see getInch().

Parameters

Stable:

ICU 53

Returns by pointer, unit of pressure: inch-ofhg.

Caller owns returned value and must free it. Also see getInchHg().

Parameters

Stable:

ICU 53

Returns by pointer, unit of concentr: item.

Caller owns returned value and must free it. Also see getItem().

Parameters

Stable:

ICU 70

Returns by pointer, unit of volume: jigger.

Caller owns returned value and must free it. Also see getJigger().

Parameters

Stable:

ICU 68

Returns by pointer, unit of energy: joule.

Caller owns returned value and must free it. Also see getJoule().

Parameters

Stable:

ICU 54

Returns by pointer, unit of concentr: karat.

Caller owns returned value and must free it. Also see getKarat().

Parameters

Stable:

ICU 54

Returns by pointer, unit of temperature: kelvin.

Caller owns returned value and must free it. Also see getKelvin().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: kilobit.

Caller owns returned value and must free it. Also see getKilobit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: kilobyte.

Caller owns returned value and must free it. Also see getKilobyte().

Parameters

Stable:

ICU 54

Returns by pointer, unit of energy: kilocalorie.

Caller owns returned value and must free it. Also see getKilocalorie().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: kilogram.

Caller owns returned value and must free it. Also see getKilogram().

Parameters

Stable:

ICU 53

Returns by pointer, unit of frequency: kilohertz.

Caller owns returned value and must free it. Also see getKilohertz().

Parameters

Stable:

ICU 54

Returns by pointer, unit of energy: kilojoule.

Caller owns returned value and must free it. Also see getKilojoule().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: kilometer.

Caller owns returned value and must free it. Also see getKilometer().

Parameters

Stable:

ICU 53

Returns by pointer, unit of speed: kilometer-per-hour.

Caller owns returned value and must free it. Also see getKilometerPerHour().

Parameters

Stable:

ICU 53

Returns by pointer, unit of pressure: kilopascal.

Caller owns returned value and must free it. Also see getKilopascal().

Parameters

Stable:

ICU 64

Returns by pointer, unit of power: kilowatt.

Caller owns returned value and must free it. Also see getKilowatt().

Parameters

Stable:

ICU 53

Returns by pointer, unit of energy: kilowatt-hour.

Caller owns returned value and must free it. Also see getKilowattHour().

Parameters

Stable:

ICU 54

Returns by pointer, unit of speed: knot.

Caller owns returned value and must free it. Also see getKnot().

Parameters

Stable:

ICU 56

Returns by pointer, unit of speed: light-speed.

Caller owns returned value and must free it. Also see getLightSpeed().

Parameters

Draft:

This API may be changed in the future versions and was introduced in ICU 76

Returns by pointer, unit of length: light-year.

Caller owns returned value and must free it. Also see getLightYear().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: liter.

Caller owns returned value and must free it. Also see getLiter().

Parameters

Stable:

ICU 53

Returns by pointer, unit of consumption: liter-per-100-kilometer.

Caller owns returned value and must free it. Also see getLiterPer100Kilometers().

Parameters

Stable:

ICU 56

Returns by pointer, unit of consumption: liter-per-kilometer.

Caller owns returned value and must free it. Also see getLiterPerKilometer().

Parameters

Stable:

ICU 54

Returns by pointer, unit of light: lumen.

Caller owns returned value and must free it. Also see getLumen().

Parameters

Stable:

ICU 68

Returns by pointer, unit of light: lux.

Caller owns returned value and must free it. Also see getLux().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: megabit.

Caller owns returned value and must free it. Also see getMegabit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: megabyte.

Caller owns returned value and must free it. Also see getMegabyte().

Parameters

Stable:

ICU 54

Returns by pointer, unit of frequency: megahertz.

Caller owns returned value and must free it. Also see getMegahertz().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: megaliter.

Caller owns returned value and must free it. Also see getMegaliter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of pressure: megapascal.

Caller owns returned value and must free it. Also see getMegapascal().

Parameters

Stable:

ICU 64

Returns by pointer, unit of graphics: megapixel.

Caller owns returned value and must free it. Also see getMegapixel().

Parameters

Stable:

ICU 65

Returns by pointer, unit of power: megawatt.

Caller owns returned value and must free it. Also see getMegawatt().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: meter.

Caller owns returned value and must free it. Also see getMeter().

Parameters

Stable:

ICU 53

Returns by pointer, unit of speed: meter-per-second.

Caller owns returned value and must free it. Also see getMeterPerSecond().

Parameters

Stable:

ICU 53

Returns by pointer, unit of acceleration: meter-per-square-second.

Caller owns returned value and must free it. Also see getMeterPerSecondSquared().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: metric-ton (renamed to tonne in CLDR 42 / ICU 72).

Caller owns returned value and must free it. Note: In ICU 74 this will be deprecated in favor of createTonne(), which is currently draft but will become stable in ICU 74, and which uses the preferred naming. Also see getMetricTon() and createTonne().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: microgram.

Caller owns returned value and must free it. Also see getMicrogram().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: micrometer.

Caller owns returned value and must free it. Also see getMicrometer().

Parameters

Stable:

ICU 54

Returns by pointer, unit of duration: microsecond.

Caller owns returned value and must free it. Also see getMicrosecond().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: mile.

Caller owns returned value and must free it. Also see getMile().

Parameters

Stable:

ICU 53

Returns by pointer, unit of consumption: mile-per-gallon.

Caller owns returned value and must free it. Also see getMilePerGallon().

Parameters

Stable:

ICU 54

Returns by pointer, unit of consumption: mile-per-gallon-imperial.

Caller owns returned value and must free it. Also see getMilePerGallonImperial().

Parameters

Stable:

ICU 57

Returns by pointer, unit of speed: mile-per-hour.

Caller owns returned value and must free it. Also see getMilePerHour().

Parameters

Stable:

ICU 53

Returns by pointer, unit of length: mile-scandinavian.

Caller owns returned value and must free it. Also see getMileScandinavian().

Parameters

Stable:

ICU 56

Returns by pointer, unit of electric: milliampere.

Caller owns returned value and must free it. Also see getMilliampere().

Parameters

Stable:

ICU 54

Returns by pointer, unit of pressure: millibar.

Caller owns returned value and must free it. Also see getMillibar().

Parameters

Stable:

ICU 53

Returns by pointer, unit of mass: milligram.

Caller owns returned value and must free it. Also see getMilligram().

Parameters

Stable:

ICU 54

Returns by pointer, unit of concentr: milligram-per-deciliter.

Caller owns returned value and must free it. Also see getMilligramPerDeciliter().

Parameters

Stable:

ICU 57

Returns by pointer, unit of volume: milliliter.

Caller owns returned value and must free it. Also see getMilliliter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: millimeter.

Caller owns returned value and must free it. Also see getMillimeter().

Parameters

Stable:

ICU 53

Returns by pointer, unit of pressure: millimeter-ofhg.

Caller owns returned value and must free it. Also see getMillimeterOfMercury().

Parameters

Stable:

ICU 54

Returns by pointer, unit of concentr: millimole-per-liter.

Caller owns returned value and must free it. Also see getMillimolePerLiter().

Parameters

Stable:

ICU 57

Returns by pointer, unit of duration: millisecond.

Caller owns returned value and must free it. Also see getMillisecond().

Parameters

Stable:

ICU 53

Returns by pointer, unit of power: milliwatt.

Caller owns returned value and must free it. Also see getMilliwatt().

Parameters

Stable:

ICU 54

Returns by pointer, unit of duration: minute.

Caller owns returned value and must free it. Also see getMinute().

Parameters

Stable:

ICU 53

Returns by pointer, unit of concentr: mole.

Caller owns returned value and must free it. Also see getMole().

Parameters

Stable:

ICU 64

Returns by pointer, unit of duration: month.

Caller owns returned value and must free it. Also see getMonth().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: month-person.

Caller owns returned value and must free it. Also see getMonthPerson().

Parameters

Stable:

ICU 64

Returns by pointer, unit of length: nanometer.

Caller owns returned value and must free it. Also see getNanometer().

Parameters

Stable:

ICU 54

Returns by pointer, unit of duration: nanosecond.

Caller owns returned value and must free it. Also see getNanosecond().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: nautical-mile.

Caller owns returned value and must free it. Also see getNauticalMile().

Parameters

Stable:

ICU 54

Returns by pointer, unit of force: newton.

Caller owns returned value and must free it. Also see getNewton().

Parameters

Stable:

ICU 64

Returns by pointer, unit of torque: newton-meter.

Caller owns returned value and must free it. Also see getNewtonMeter().

Parameters

Stable:

ICU 64

Returns by pointer, unit of duration: night.

Caller owns returned value and must free it. Also see getNight().

Parameters

Draft:

This API may be changed in the future versions and was introduced in ICU 76

Returns by pointer, unit of electric: ohm.

Caller owns returned value and must free it. Also see getOhm().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: ounce.

Caller owns returned value and must free it. Also see getOunce().

Parameters

Stable:

ICU 53

Returns by pointer, unit of mass: ounce-troy.

Caller owns returned value and must free it. Also see getOunceTroy().

Parameters

Stable:

ICU 54

Returns by pointer, unit of length: parsec.

Caller owns returned value and must free it. Also see getParsec().

Parameters

Stable:

ICU 54

Returns by pointer, unit of concentr: permillion.

Caller owns returned value and must free it. Also see getPartPerMillion().

Parameters

Stable:

ICU 57

Returns by pointer, unit of pressure: pascal.

Caller owns returned value and must free it. Also see getPascal().

Parameters

Stable:

ICU 65

Returns by pointer, unit of concentr: percent.

Caller owns returned value and must free it. Also see getPercent().

Parameters

Stable:

ICU 63

Returns by pointer, unit of concentr: permille.

Caller owns returned value and must free it. Also see getPermille().

Parameters

Stable:

ICU 63

Returns by pointer, unit of concentr: permyriad.

Caller owns returned value and must free it. Also see getPermyriad().

Parameters

Stable:

ICU 64

Returns by pointer, unit of digital: petabyte.

Caller owns returned value and must free it. Also see getPetabyte().

Parameters

Stable:

ICU 63

Returns by pointer, unit of length: picometer.

Caller owns returned value and must free it. Also see getPicometer().

Parameters

Stable:

ICU 53

Returns by pointer, unit of volume: pinch.

Caller owns returned value and must free it. Also see getPinch().

Parameters

Stable:

ICU 68

Returns by pointer, unit of volume: pint.

Caller owns returned value and must free it. Also see getPint().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: pint-metric.

Caller owns returned value and must free it. Also see getPintMetric().

Parameters

Stable:

ICU 56

Returns by pointer, unit of graphics: pixel.

Caller owns returned value and must free it. Also see getPixel().

Parameters

Stable:

ICU 65

Returns by pointer, unit of graphics: pixel-per-centimeter.

Caller owns returned value and must free it. Also see getPixelPerCentimeter().

Parameters

Stable:

ICU 65

Returns by pointer, unit of graphics: pixel-per-inch.

Caller owns returned value and must free it. Also see getPixelPerInch().

Parameters

Stable:

ICU 65

Returns by pointer, unit of length: point.

Caller owns returned value and must free it. Also see getPoint().

Parameters

Stable:

ICU 59

Returns by pointer, unit of concentr: portion-per-1e9.

Caller owns returned value and must free it. Also see getPortionPer1E9().

Parameters

Draft:

This API may be changed in the future versions and was introduced in ICU 77

Returns by pointer, unit of mass: pound.

Caller owns returned value and must free it. Also see getPound().

Parameters

Stable:

ICU 53

Returns by pointer, unit of torque: pound-force-foot.

Caller owns returned value and must free it. Also see getPoundFoot().

Parameters

Stable:

ICU 64

Returns by pointer, unit of force: pound-force.

Caller owns returned value and must free it. Also see getPoundForce().

Parameters

Stable:

ICU 64

Returns by pointer, unit of pressure: pound-force-per-square-inch.

Caller owns returned value and must free it. Also see getPoundPerSquareInch().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: quart.

Caller owns returned value and must free it. Also see getQuart().

Parameters

Stable:

ICU 54

Returns by pointer, unit of duration: quarter.

Caller owns returned value and must free it. Also see getQuarter().

Parameters

Stable:

ICU 72

Returns by pointer, unit of volume: quart-imperial.

Caller owns returned value and must free it. Also see getQuartImperial().

Parameters

Stable:

ICU 68

Returns by pointer, unit of angle: radian.

Caller owns returned value and must free it. Also see getRadian().

Parameters

Stable:

ICU 54

Returns by pointer, unit of angle: revolution.

Caller owns returned value and must free it. Also see getRevolutionAngle().

Parameters

Stable:

ICU 56

Returns by pointer, unit of duration: second.

Caller owns returned value and must free it. Also see getSecond().

Parameters

Stable:

ICU 53

Returns by pointer, unit of light: solar-luminosity.

Caller owns returned value and must free it. Also see getSolarLuminosity().

Parameters

Stable:

ICU 64

Returns by pointer, unit of mass: solar-mass.

Caller owns returned value and must free it. Also see getSolarMass().

Parameters

Stable:

ICU 64

Returns by pointer, unit of length: solar-radius.

Caller owns returned value and must free it. Also see getSolarRadius().

Parameters

Stable:

ICU 64

Returns by pointer, unit of area: square-centimeter.

Caller owns returned value and must free it. Also see getSquareCentimeter().

Parameters

Stable:

ICU 54

Returns by pointer, unit of area: square-foot.

Caller owns returned value and must free it. Also see getSquareFoot().

Parameters

Stable:

ICU 53

Returns by pointer, unit of area: square-inch.

Caller owns returned value and must free it. Also see getSquareInch().

Parameters

Stable:

ICU 54

Returns by pointer, unit of area: square-kilometer.

Caller owns returned value and must free it. Also see getSquareKilometer().

Parameters

Stable:

ICU 53

Returns by pointer, unit of area: square-meter.

Caller owns returned value and must free it. Also see getSquareMeter().

Parameters

Stable:

ICU 53

Returns by pointer, unit of area: square-mile.

Caller owns returned value and must free it. Also see getSquareMile().

Parameters

Stable:

ICU 53

Returns by pointer, unit of area: square-yard.

Caller owns returned value and must free it. Also see getSquareYard().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: stone.

Caller owns returned value and must free it. Also see getStone().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: tablespoon.

Caller owns returned value and must free it. Also see getTablespoon().

Parameters

Stable:

ICU 54

Returns by pointer, unit of volume: teaspoon.

Caller owns returned value and must free it. Also see getTeaspoon().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: terabit.

Caller owns returned value and must free it. Also see getTerabit().

Parameters

Stable:

ICU 54

Returns by pointer, unit of digital: terabyte.

Caller owns returned value and must free it. Also see getTerabyte().

Parameters

Stable:

ICU 54

Returns by pointer, unit of energy: therm-us.

Caller owns returned value and must free it. Also see getThermUs().

Parameters

Stable:

ICU 65

Returns by pointer, unit of mass: ton.

Caller owns returned value and must free it. Also see getTon().

Parameters

Stable:

ICU 54

Returns by pointer, unit of mass: tonne.

Caller owns returned value and must free it. Also see getTonne().

Parameters

Stable:

ICU 72

Returns by pointer, unit of electric: volt.

Caller owns returned value and must free it. Also see getVolt().

Parameters

Stable:

ICU 54

Returns by pointer, unit of power: watt.

Caller owns returned value and must free it. Also see getWatt().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: week.

Caller owns returned value and must free it. Also see getWeek().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: week-person.

Caller owns returned value and must free it. Also see getWeekPerson().

Parameters

Stable:

ICU 64

Returns by pointer, unit of length: yard.

Caller owns returned value and must free it. Also see getYard().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: year.

Caller owns returned value and must free it. Also see getYear().

Parameters

Stable:

ICU 53

Returns by pointer, unit of duration: year-person.

Caller owns returned value and must free it. Also see getYearPerson().

Parameters

Stable:

ICU 64

Constructs a MeasureUnit from a CLDR Core Unit Identifier, as defined in UTS 35.

This method supports core unit identifiers and mixed unit identifiers. It validates and canonicalizes the given identifier.

Example usage:

MeasureUnit example = MeasureUnit::forIdentifier("meter-per-second", status);

Parameters

identifier the CLDR Unit Identifier status Set error if the identifier is invalid.

Returns

the corresponding MeasureUnit

Stable:

ICU 67

getAvailable gets all of the available units for a specific type.

If there are too many units to fit into destCapacity then the error code is set to U_BUFFER_OVERFLOW_ERROR.

Parameters

type the type destArray destination buffer. destCapacity number of MeasureUnit instances available at dest. errorCode ICU error code.

Returns

number of available units for type.

Stable:

ICU 53

getAvailable gets all of the available units.

If there are too many units to fit into destCapacity then the error code is set to U_BUFFER_OVERFLOW_ERROR.

Parameters

destArray destination buffer. destCapacity number of MeasureUnit instances available at dest. errorCode ICU error code.

Returns

number of available units.

Stable:

ICU 53

getAvailableTypes gets all of the available types.

Caller owns the returned StringEnumeration and must delete it when finished using it.

Parameters

errorCode ICU error code.

Returns

the types.

Stable:

ICU 53

Compute the complexity of the unit.

See UMeasureUnitComplexity for more information.

Parameters

status Set if an error occurs.

Returns

The unit complexity.

Stable:

ICU 67

Retrieves the constant denominator for this COMPOUND unit.

Examples:

• For the unit "liter-per-1000-kiloliter", the constant denominator is 1000.
• For the unit "liter-per-kilometer", the constant denominator is zero.

This method is applicable only to COMPOUND and SINGLE units. If invoked on a MIXED unit, an error will be set in the status.

NOTE: If no constant denominator exists, the method returns 0.

Parameters

status Set if this is not a COMPOUND or SINGLE unit or if another error occurs.

Returns

The value of the constant denominator.

Draft:

This API may be changed in the future versions and was introduced in ICU 77

Gets the dimensionality (power) of this MeasureUnit.

For example, if the unit is square, then 2 is returned.

NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

For the base dimensionless unit, getDimensionality returns 0.

Parameters

status Set if this is not a SINGLE unit or if another error occurs.

Returns

The dimensionality (power) of this simple unit.

Stable:

ICU 67

Returns a unique class ID POLYMORPHICALLY.

Pure virtual override. This method is to implement a simple version of RTTI, since not all C++ compilers support genuine RTTI. Polymorphic operator==() and clone() methods call this method.

Returns

The class ID for this object. All objects of a given class have the same class ID. Objects of other classes have different class IDs.

Stable:

ICU 53

Reimplemented from icu::UObject.

Reimplemented in icu::TimeUnit, and icu::CurrencyUnit.

Get CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.

Returns

The string form of this unit, owned by this MeasureUnit.

Stable:

ICU 67

Returns by value, unit of speed: light-speed.

Also see createLightSpeed().

Draft:

This API may be changed in the future versions and was introduced in ICU 76

Returns by value, unit of mass: metric-ton (renamed to tonne in CLDR 42 / ICU 72).

Note: In ICU 74 this will be deprecated in favor of getTonne(), which is currently draft but will become stable in ICU 74, and which uses the preferred naming. Also see createMetricTon() and getTonne().

Stable:

ICU 64

Returns by value, unit of duration: night.

Also see createNight().

Draft:

This API may be changed in the future versions and was introduced in ICU 76

ICU use only.

Returns associated array index for this measure unit.

Internal:

Do not use. This API is for internal use only.

Returns by value, unit of concentr: portion-per-1e9.

Also see createPortionPer1E9().

Draft:

This API may be changed in the future versions and was introduced in ICU 77

Returns the current SI or binary prefix of this SINGLE unit.

For example, if the unit has the prefix "kilo", then UMEASURE_PREFIX_KILO is returned.

NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

Parameters

status Set if this is not a SINGLE unit or if another error occurs.

Returns

The prefix of this SINGLE unit, from UMeasurePrefix.

See also

umeas_getPrefixBase

umeas_getPrefixPower

Stable:

ICU 69

Return the class ID for this class.

This is useful only for comparing to a return value from getDynamicClassID(). For example:

.   Base* polymorphic_pointer = createPolymorphicObject();
.   if (polymorphic_pointer->getDynamicClassID() ==
.       Derived::getStaticClassID()) ...

Returns

The class ID for all objects of this class.

Stable:

ICU 53

Get the sub type.

If the unit does not have a subtype, the empty string is returned.

Stable:

ICU 53

Get the type.

If the unit does not have a type, the empty string is returned.

Stable:

ICU 53

For ICU use only.

Internal:

Do not use. This API is for internal use only.

For ICU use only.

Internal:

Do not use. This API is for internal use only.

Inequality operator.

Return true if this object is not equal to the given object.

Stable:

ICU 53

Definition at line 483 of file measunit.h.

Copy assignment operator.

Stable:

ICU 3.0

Move assignment operator.

Stable:

ICU 67

Equality operator.

Return true if this object is equal to the given object.

Stable:

ICU 3.0

Gets the product of this unit with another unit.

This is a way to build units from constituent parts.

The numerator and denominator are preserved through this operation.

For example, if the receiver is "kilowatt" and the argument is "hour-per-day", then the unit "kilowatt-hour-per-day" is returned.

NOTE: Only works on SINGLE and COMPOUND units. If either unit (receiver and argument) is a MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

Parameters

other The MeasureUnit to multiply with the target. status Set if this or other is a MIXED unit or if another error occurs.

Returns

The product of the target unit with the provided unit.

Stable:

ICU 67

Gets the reciprocal of this MeasureUnit, with the numerator and denominator flipped.

For example, if the receiver is "meter-per-second", the unit "second-per-meter" is returned.

NOTE: Only works on SINGLE and COMPOUND units. If this is a MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

NOTE: An Error will be returned for units that have a constant denominator.

Parameters

status Set if this is a MIXED unit, has a constant denominator or if another error occurs.

Returns

The reciprocal of the target unit.

Stable:

ICU 67

Gets the list of SINGLE units contained within a MIXED or COMPOUND unit.

Examples:

• Given "meter-kilogram-per-second", three units will be returned: "meter", "kilogram", and "per-second".
• Given "hour+minute+second", three units will be returned: "hour", "minute", and "second".

If this is a SINGLE unit, an array of length 1 will be returned.

NOTE: For units with a constant denominator, the returned single units will not include the constant denominator. To obtain the constant denominator, retrieve it from the original unit.

Parameters

status Set if an error occurs.

Returns

A pair with the list of units as a LocalArray and the number of units in the list.

Stable:

ICU 68

Definition at line 3941 of file measunit.h.

Creates a new MeasureUnit with a specified constant denominator.

This method is applicable only to COMPOUND and SINGLE units. If invoked on a MIXED unit, an error will be set in the status.

NOTE: If the constant denominator is set to 0, it means that you are removing the constant denominator.

Parameters

denominator The constant denominator to set. status Set if this is not a COMPOUND or SINGLE unit or if another error occurs.

Returns

A new MeasureUnit with the specified constant denominator.

Draft:

This API may be changed in the future versions and was introduced in ICU 77

Creates a MeasureUnit which is this SINGLE unit augmented with the specified dimensionality (power).

For example, if dimensionality is 2, the unit will be squared.

NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

For the base dimensionless unit, withDimensionality does nothing.

Parameters

dimensionality The dimensionality (power). status Set if this is not a SINGLE unit or if another error occurs.

Returns

A new SINGLE unit.

Stable:

ICU 67

Creates a MeasureUnit which is this SINGLE unit augmented with the specified prefix.

For example, UMEASURE_PREFIX_KILO for "kilo", or UMEASURE_PREFIX_KIBI for "kibi".

There is sufficient locale data to format all standard prefixes.

NOTE: Only works on SINGLE units. If this is a COMPOUND or MIXED unit, an error will occur. For more information, see UMeasureUnitComplexity.

Parameters

prefix The prefix, from UMeasurePrefix. status Set if this is not a SINGLE unit or if another error occurs.

Returns

A new SINGLE unit.

Stable:

ICU 69

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

• i18n/unicode/measunit.h

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