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 // © 2016 and later: Unicode, Inc. and others.
 // License & terms of use: http://www.unicode.org/copyright.html
 /*
 **********************************************************************
 * Copyright (c) 2004-2016, International Business Machines
 * Corporation and others.  All Rights Reserved.
 **********************************************************************
 * Author: Alan Liu
 * Created: April 26, 2004
 * Since: ICU 3.0
 **********************************************************************
 */
 #ifndef __MEASUREUNIT_H__
 #define __MEASUREUNIT_H__
 
 #include "unicode/utypes.h"
 
 #if U_SHOW_CPLUSPLUS_API
 
 #if !UCONFIG_NO_FORMATTING
 
 #include <utility>
 #include "unicode/unistr.h"
 #include "unicode/localpointer.h"
 
 /**
  * \file
  * \brief C++ API: A unit for measuring a quantity.
  */
 
 U_NAMESPACE_BEGIN
 
 class StringEnumeration;
 class MeasureUnitImpl;
 
 namespace number::impl {
 class LongNameHandler;
 } // namespace number::impl
 
 /**
  * Enumeration for unit complexity. There are three levels:
  *
  * - SINGLE: A single unit, optionally with a power and/or SI or binary prefix.
  *           Examples: hectare, square-kilometer, kilojoule, per-second, mebibyte.
  * - COMPOUND: A unit composed of the product of multiple single units. Examples:
  *             meter-per-second, kilowatt-hour, kilogram-meter-per-square-second.
  * - MIXED: A unit composed of the sum of multiple single units. Examples: foot+inch,
  *          hour+minute+second, degree+arcminute+arcsecond.
  *
  * The complexity determines which operations are available. For example, you cannot set the power
  * or prefix of a compound unit.
  *
  * @stable ICU 67
  */
 enum UMeasureUnitComplexity {
     /**
      * A single unit, like kilojoule.
      *
      * @stable ICU 67
      */
     UMEASURE_UNIT_SINGLE,
 
     /**
      * A compound unit, like meter-per-second.
      *
      * @stable ICU 67
      */
     UMEASURE_UNIT_COMPOUND,
 
     /**
      * A mixed unit, like hour+minute.
      *
      * @stable ICU 67
      */
     UMEASURE_UNIT_MIXED
 };
 
 
 /**
  * Enumeration for SI and binary prefixes, e.g. "kilo-", "nano-", "mebi-".
  *
  * Enum values should be treated as opaque: use umeas_getPrefixPower() and
  * umeas_getPrefixBase() to find their corresponding values.
  *
  * @stable ICU 69
  * @see umeas_getPrefixBase
  * @see umeas_getPrefixPower
  */
 typedef enum UMeasurePrefix {
     /**
      * The absence of an SI or binary prefix.
      *
      * The integer representation of this enum value is an arbitrary
      * implementation detail and should not be relied upon: use
      * umeas_getPrefixPower() to obtain meaningful values.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_ONE = 30 + 0,
 
     /**
      * SI prefix: yotta, 10^24.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_YOTTA = UMEASURE_PREFIX_ONE + 24,
 
 #ifndef U_HIDE_DRAFT_API
     /**
      * SI prefix: ronna, 10^27.
      *
      * @draft ICU 75
      */
     UMEASURE_PREFIX_RONNA = UMEASURE_PREFIX_ONE + 27,
 
     /**
      * SI prefix: quetta, 10^30.
      *
      * @draft ICU 75
      */
     UMEASURE_PREFIX_QUETTA = UMEASURE_PREFIX_ONE + 30,
 #endif  /* U_HIDE_DRAFT_API */
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * ICU use only.
      * Used to determine the set of base-10 SI prefixes.
      * @internal
      */
 #ifndef U_HIDE_DRAFT_API
     UMEASURE_PREFIX_INTERNAL_MAX_SI = UMEASURE_PREFIX_QUETTA,
 #else  /* U_HIDE_DRAFT_API */
     UMEASURE_PREFIX_INTERNAL_MAX_SI = UMEASURE_PREFIX_YOTTA,
 #endif  /* U_HIDE_DRAFT_API */
 
 #endif  /* U_HIDE_INTERNAL_API */
 
     /**
      * SI prefix: zetta, 10^21.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_ZETTA = UMEASURE_PREFIX_ONE + 21,
 
     /**
      * SI prefix: exa, 10^18.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_EXA = UMEASURE_PREFIX_ONE + 18,
 
     /**
      * SI prefix: peta, 10^15.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_PETA = UMEASURE_PREFIX_ONE + 15,
 
     /**
      * SI prefix: tera, 10^12.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_TERA = UMEASURE_PREFIX_ONE + 12,
 
     /**
      * SI prefix: giga, 10^9.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_GIGA = UMEASURE_PREFIX_ONE + 9,
 
     /**
      * SI prefix: mega, 10^6.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_MEGA = UMEASURE_PREFIX_ONE + 6,
 
     /**
      * SI prefix: kilo, 10^3.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_KILO = UMEASURE_PREFIX_ONE + 3,
 
     /**
      * SI prefix: hecto, 10^2.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_HECTO = UMEASURE_PREFIX_ONE + 2,
 
     /**
      * SI prefix: deka, 10^1.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_DEKA = UMEASURE_PREFIX_ONE + 1,
 
     /**
      * SI prefix: deci, 10^-1.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_DECI = UMEASURE_PREFIX_ONE + -1,
 
     /**
      * SI prefix: centi, 10^-2.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_CENTI = UMEASURE_PREFIX_ONE + -2,
 
     /**
      * SI prefix: milli, 10^-3.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_MILLI = UMEASURE_PREFIX_ONE + -3,
 
     /**
      * SI prefix: micro, 10^-6.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_MICRO = UMEASURE_PREFIX_ONE + -6,
 
     /**
      * SI prefix: nano, 10^-9.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_NANO = UMEASURE_PREFIX_ONE + -9,
 
     /**
      * SI prefix: pico, 10^-12.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_PICO = UMEASURE_PREFIX_ONE + -12,
 
     /**
      * SI prefix: femto, 10^-15.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_FEMTO = UMEASURE_PREFIX_ONE + -15,
 
     /**
      * SI prefix: atto, 10^-18.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_ATTO = UMEASURE_PREFIX_ONE + -18,
 
     /**
      * SI prefix: zepto, 10^-21.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_ZEPTO = UMEASURE_PREFIX_ONE + -21,
 
     /**
      * SI prefix: yocto, 10^-24.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_YOCTO = UMEASURE_PREFIX_ONE + -24,
 
 #ifndef U_HIDE_DRAFT_API
     /**
      * SI prefix: ronto, 10^-27.
      *
      * @draft ICU 75
      */
     UMEASURE_PREFIX_RONTO = UMEASURE_PREFIX_ONE + -27,
 
     /**
      * SI prefix: quecto, 10^-30.
      *
      * @draft ICU 75
      */
     UMEASURE_PREFIX_QUECTO = UMEASURE_PREFIX_ONE + -30,
 #endif  /* U_HIDE_DRAFT_API */
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * ICU use only.
      * Used to determine the set of base-10 SI prefixes.
      * @internal
      */
 #ifndef U_HIDE_DRAFT_API
     UMEASURE_PREFIX_INTERNAL_MIN_SI = UMEASURE_PREFIX_QUECTO,
 #else  /* U_HIDE_DRAFT_API */
     UMEASURE_PREFIX_INTERNAL_MIN_SI = UMEASURE_PREFIX_YOCTO,
 #endif  /* U_HIDE_DRAFT_API */
 
 #endif  // U_HIDE_INTERNAL_API
 
     // Cannot conditionalize the following with #ifndef U_HIDE_INTERNAL_API,
     // used in definitions of non-internal enum values
     /**
      * ICU use only.
      * Sets the arbitrary offset of the base-1024 binary prefixes' enum values.
      * @internal
      */
     UMEASURE_PREFIX_INTERNAL_ONE_BIN = -60,
 
     /**
      * Binary prefix: kibi, 1024^1.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_KIBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 1,
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * ICU use only.
      * Used to determine the set of base-1024 binary prefixes.
      * @internal
      */
     UMEASURE_PREFIX_INTERNAL_MIN_BIN = UMEASURE_PREFIX_KIBI,
 #endif  // U_HIDE_INTERNAL_API
 
     /**
      * Binary prefix: mebi, 1024^2.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_MEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 2,
 
     /**
      * Binary prefix: gibi, 1024^3.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_GIBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 3,
 
     /**
      * Binary prefix: tebi, 1024^4.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_TEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 4,
 
     /**
      * Binary prefix: pebi, 1024^5.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_PEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 5,
 
     /**
      * Binary prefix: exbi, 1024^6.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_EXBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 6,
 
     /**
      * Binary prefix: zebi, 1024^7.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_ZEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 7,
 
     /**
      * Binary prefix: yobi, 1024^8.
      *
      * @stable ICU 69
      */
     UMEASURE_PREFIX_YOBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 8,
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * ICU use only.
      * Used to determine the set of base-1024 binary prefixes.
      * @internal
      */
     UMEASURE_PREFIX_INTERNAL_MAX_BIN = UMEASURE_PREFIX_YOBI,
 #endif  // U_HIDE_INTERNAL_API
 } UMeasurePrefix;
 
 /**
  * Returns the base of the factor associated with the given unit prefix: the
  * base is 10 for SI prefixes (kilo, micro) and 1024 for binary prefixes (kibi,
  * mebi).
  *
  * @stable ICU 69
  */
 U_CAPI int32_t U_EXPORT2 umeas_getPrefixBase(UMeasurePrefix unitPrefix);
 
 /**
  * Returns the exponent of the factor associated with the given unit prefix, for
  * example 3 for kilo, -6 for micro, 1 for kibi, 2 for mebi, 3 for gibi.
  *
  * @stable ICU 69
  */
 U_CAPI int32_t U_EXPORT2 umeas_getPrefixPower(UMeasurePrefix unitPrefix);
 
 /**
  * A unit such as length, mass, volume, currency, etc.  A unit is
  * coupled with a numeric amount to produce a Measure.
  *
  * @author Alan Liu
  * @stable ICU 3.0
  */
 class U_I18N_API MeasureUnit: public UObject {
  public:
 
     /**
      * 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
      */
     MeasureUnit();
 
     /**
      * Copy constructor.
      * @stable ICU 3.0
      */
     MeasureUnit(const MeasureUnit &other);
 
     /**
      * Move constructor.
      * @stable ICU 67
      */
     MeasureUnit(MeasureUnit &&other) noexcept;
 
     /**
      * Construct a MeasureUnit from a CLDR Core Unit Identifier, defined in UTS
      * 35. (Core unit identifiers and mixed unit identifiers are supported, long
      * unit identifiers are not.) Validates and canonicalizes the identifier.
      *
      * <pre>
      * MeasureUnit example = MeasureUnit::forIdentifier("furlong-per-nanosecond")
      * </pre>
      *
      * @param identifier The CLDR Unit Identifier.
      * @param status Set if the identifier is invalid.
      * @stable ICU 67
      */
     static MeasureUnit forIdentifier(StringPiece identifier, UErrorCode& status);
 
     /**
      * Copy assignment operator.
      * @stable ICU 3.0
      */
     MeasureUnit &operator=(const MeasureUnit &other);
 
     /**
      * Move assignment operator.
      * @stable ICU 67
      */
     MeasureUnit &operator=(MeasureUnit &&other) noexcept;
 
     /**
      * Returns a polymorphic clone of this object.  The result will
      * have the same class as returned by getDynamicClassID().
      * @stable ICU 3.0
      */
     virtual MeasureUnit* clone() const;
 
     /**
      * Destructor
      * @stable ICU 3.0
      */
     virtual ~MeasureUnit();
 
     /**
      * Equality operator.  Return true if this object is equal
      * to the given object.
      * @stable ICU 3.0
      */
     virtual bool operator==(const UObject& other) const;
 
     /**
      * Inequality operator.  Return true if this object is not equal
      * to the given object.
      * @stable ICU 53
      */
     bool operator!=(const UObject& other) const {
         return !(*this == other);
     }
 
     /**
      * Get the type.
      *
      * If the unit does not have a type, the empty string is returned.
      *
      * @stable ICU 53
      */
     const char *getType() const;
 
     /**
      * Get the sub type.
      *
      * If the unit does not have a subtype, the empty string is returned.
      *
      * @stable ICU 53
      */
     const char *getSubtype() const;
 
     /**
      * Get CLDR Unit Identifier for this MeasureUnit, as defined in UTS 35.
      *
      * @return The string form of this unit, owned by this MeasureUnit.
      * @stable ICU 67
      */
     const char* getIdentifier() const;
 
     /**
      * Compute the complexity of the unit. See UMeasureUnitComplexity for more information.
      *
      * @param status Set if an error occurs.
      * @return The unit complexity.
      * @stable ICU 67
      */
     UMeasureUnitComplexity getComplexity(UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param prefix The prefix, from UMeasurePrefix.
      * @param status Set if this is not a SINGLE unit or if another error occurs.
      * @return A new SINGLE unit.
      * @stable ICU 69
      */
     MeasureUnit withPrefix(UMeasurePrefix prefix, UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param status Set if this is not a SINGLE unit or if another error occurs.
      * @return The prefix of this SINGLE unit, from UMeasurePrefix.
      * @see umeas_getPrefixBase
      * @see umeas_getPrefixPower
      * @stable ICU 69
      */
     UMeasurePrefix getPrefix(UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param dimensionality The dimensionality (power).
      * @param status Set if this is not a SINGLE unit or if another error occurs.
      * @return A new SINGLE unit.
      * @stable ICU 67
      */
     MeasureUnit withDimensionality(int32_t dimensionality, UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param status Set if this is not a SINGLE unit or if another error occurs.
      * @return The dimensionality (power) of this simple unit.
      * @stable ICU 67
      */
     int32_t getDimensionality(UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param status Set if this is a MIXED unit or if another error occurs.
      * @return The reciprocal of the target unit.
      * @stable ICU 67
      */
     MeasureUnit reciprocal(UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param other The MeasureUnit to multiply with the target.
      * @param status Set if this or other is a MIXED unit or if another error occurs.
      * @return The product of the target unit with the provided unit.
      * @stable ICU 67
      */
     MeasureUnit product(const MeasureUnit& other, UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param status Set if an error occurs.
      * @return A pair with the list of units as a LocalArray and the number of units in the list.
      * @stable ICU 68
      */
     inline std::pair<LocalArray<MeasureUnit>, int32_t> splitToSingleUnits(UErrorCode& status) const;
 
     /**
      * 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.
      *
      * @param destArray destination buffer.
      * @param destCapacity number of MeasureUnit instances available at dest.
      * @param errorCode ICU error code.
      * @return number of available units.
      * @stable ICU 53
      */
     static int32_t getAvailable(
             MeasureUnit *destArray,
             int32_t destCapacity,
             UErrorCode &errorCode);
 
     /**
      * 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.
      *
      * @param type the type
      * @param destArray destination buffer.
      * @param destCapacity number of MeasureUnit instances available at dest.
      * @param errorCode ICU error code.
      * @return number of available units for type.
      * @stable ICU 53
      */
     static int32_t getAvailable(
             const char *type,
             MeasureUnit *destArray,
             int32_t destCapacity,
             UErrorCode &errorCode);
 
     /**
      * getAvailableTypes gets all of the available types. Caller owns the
      * returned StringEnumeration and must delete it when finished using it.
      *
      * @param errorCode ICU error code.
      * @return the types.
      * @stable ICU 53
      */
     static StringEnumeration* getAvailableTypes(UErrorCode &errorCode);
 
     /**
      * Return the class ID for this class. This is useful only for comparing to
      * a return value from getDynamicClassID(). For example:
      * <pre>
      * .   Base* polymorphic_pointer = createPolymorphicObject();
      * .   if (polymorphic_pointer->getDynamicClassID() ==
      * .       Derived::getStaticClassID()) ...
      * </pre>
      * @return          The class ID for all objects of this class.
      * @stable ICU 53
      */
     static UClassID U_EXPORT2 getStaticClassID();
 
     /**
      * 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.
      *
      * @return          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
      */
     virtual UClassID getDynamicClassID() const override;
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * ICU use only.
      * Returns associated array index for this measure unit.
      * @internal
      */
     int32_t getOffset() const;
 #endif /* U_HIDE_INTERNAL_API */
 
 // All code between the "Start generated createXXX methods" comment and
 // the "End generated createXXX methods" comment is auto generated code
 // and must not be edited manually. For instructions on how to correctly
 // update this code, refer to:
 // docs/processes/release/tasks/updating-measure-unit.md
 //
 // Start generated createXXX methods
 
     /**
      * Returns by pointer, unit of acceleration: g-force.
      * Caller owns returned value and must free it.
      * Also see {@link #getGForce()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createGForce(UErrorCode &status);
 
     /**
      * Returns by value, unit of acceleration: g-force.
      * Also see {@link #createGForce()}.
      * @stable ICU 64
      */
     static MeasureUnit getGForce();
 
     /**
      * Returns by pointer, unit of acceleration: meter-per-square-second.
      * Caller owns returned value and must free it.
      * Also see {@link #getMeterPerSecondSquared()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMeterPerSecondSquared(UErrorCode &status);
 
     /**
      * Returns by value, unit of acceleration: meter-per-square-second.
      * Also see {@link #createMeterPerSecondSquared()}.
      * @stable ICU 64
      */
     static MeasureUnit getMeterPerSecondSquared();
 
     /**
      * Returns by pointer, unit of angle: arc-minute.
      * Caller owns returned value and must free it.
      * Also see {@link #getArcMinute()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createArcMinute(UErrorCode &status);
 
     /**
      * Returns by value, unit of angle: arc-minute.
      * Also see {@link #createArcMinute()}.
      * @stable ICU 64
      */
     static MeasureUnit getArcMinute();
 
     /**
      * Returns by pointer, unit of angle: arc-second.
      * Caller owns returned value and must free it.
      * Also see {@link #getArcSecond()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createArcSecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of angle: arc-second.
      * Also see {@link #createArcSecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getArcSecond();
 
     /**
      * Returns by pointer, unit of angle: degree.
      * Caller owns returned value and must free it.
      * Also see {@link #getDegree()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createDegree(UErrorCode &status);
 
     /**
      * Returns by value, unit of angle: degree.
      * Also see {@link #createDegree()}.
      * @stable ICU 64
      */
     static MeasureUnit getDegree();
 
     /**
      * Returns by pointer, unit of angle: radian.
      * Caller owns returned value and must free it.
      * Also see {@link #getRadian()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createRadian(UErrorCode &status);
 
     /**
      * Returns by value, unit of angle: radian.
      * Also see {@link #createRadian()}.
      * @stable ICU 64
      */
     static MeasureUnit getRadian();
 
     /**
      * Returns by pointer, unit of angle: revolution.
      * Caller owns returned value and must free it.
      * Also see {@link #getRevolutionAngle()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createRevolutionAngle(UErrorCode &status);
 
     /**
      * Returns by value, unit of angle: revolution.
      * Also see {@link #createRevolutionAngle()}.
      * @stable ICU 64
      */
     static MeasureUnit getRevolutionAngle();
 
     /**
      * Returns by pointer, unit of area: acre.
      * Caller owns returned value and must free it.
      * Also see {@link #getAcre()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createAcre(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: acre.
      * Also see {@link #createAcre()}.
      * @stable ICU 64
      */
     static MeasureUnit getAcre();
 
     /**
      * Returns by pointer, unit of area: dunam.
      * Caller owns returned value and must free it.
      * Also see {@link #getDunam()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createDunam(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: dunam.
      * Also see {@link #createDunam()}.
      * @stable ICU 64
      */
     static MeasureUnit getDunam();
 
     /**
      * Returns by pointer, unit of area: hectare.
      * Caller owns returned value and must free it.
      * Also see {@link #getHectare()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createHectare(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: hectare.
      * Also see {@link #createHectare()}.
      * @stable ICU 64
      */
     static MeasureUnit getHectare();
 
     /**
      * Returns by pointer, unit of area: square-centimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareCentimeter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createSquareCentimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-centimeter.
      * Also see {@link #createSquareCentimeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareCentimeter();
 
     /**
      * Returns by pointer, unit of area: square-foot.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareFoot()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createSquareFoot(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-foot.
      * Also see {@link #createSquareFoot()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareFoot();
 
     /**
      * Returns by pointer, unit of area: square-inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareInch()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createSquareInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-inch.
      * Also see {@link #createSquareInch()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareInch();
 
     /**
      * Returns by pointer, unit of area: square-kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareKilometer()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createSquareKilometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-kilometer.
      * Also see {@link #createSquareKilometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareKilometer();
 
     /**
      * Returns by pointer, unit of area: square-meter.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareMeter()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createSquareMeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-meter.
      * Also see {@link #createSquareMeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareMeter();
 
     /**
      * Returns by pointer, unit of area: square-mile.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareMile()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createSquareMile(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-mile.
      * Also see {@link #createSquareMile()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareMile();
 
     /**
      * Returns by pointer, unit of area: square-yard.
      * Caller owns returned value and must free it.
      * Also see {@link #getSquareYard()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createSquareYard(UErrorCode &status);
 
     /**
      * Returns by value, unit of area: square-yard.
      * Also see {@link #createSquareYard()}.
      * @stable ICU 64
      */
     static MeasureUnit getSquareYard();
 
     /**
      * Returns by pointer, unit of concentr: item.
      * Caller owns returned value and must free it.
      * Also see {@link #getItem()}.
      * @param status ICU error code.
      * @stable ICU 70
      */
     static MeasureUnit *createItem(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: item.
      * Also see {@link #createItem()}.
      * @stable ICU 70
      */
     static MeasureUnit getItem();
 
     /**
      * Returns by pointer, unit of concentr: karat.
      * Caller owns returned value and must free it.
      * Also see {@link #getKarat()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKarat(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: karat.
      * Also see {@link #createKarat()}.
      * @stable ICU 64
      */
     static MeasureUnit getKarat();
 
     /**
      * Returns by pointer, unit of concentr: milligram-ofglucose-per-deciliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilligramOfglucosePerDeciliter()}.
      * @param status ICU error code.
      * @stable ICU 69
      */
     static MeasureUnit *createMilligramOfglucosePerDeciliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: milligram-ofglucose-per-deciliter.
      * Also see {@link #createMilligramOfglucosePerDeciliter()}.
      * @stable ICU 69
      */
     static MeasureUnit getMilligramOfglucosePerDeciliter();
 
     /**
      * Returns by pointer, unit of concentr: milligram-per-deciliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilligramPerDeciliter()}.
      * @param status ICU error code.
      * @stable ICU 57
      */
     static MeasureUnit *createMilligramPerDeciliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: milligram-per-deciliter.
      * Also see {@link #createMilligramPerDeciliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilligramPerDeciliter();
 
     /**
      * Returns by pointer, unit of concentr: millimole-per-liter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMillimolePerLiter()}.
      * @param status ICU error code.
      * @stable ICU 57
      */
     static MeasureUnit *createMillimolePerLiter(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: millimole-per-liter.
      * Also see {@link #createMillimolePerLiter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMillimolePerLiter();
 
     /**
      * Returns by pointer, unit of concentr: mole.
      * Caller owns returned value and must free it.
      * Also see {@link #getMole()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createMole(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: mole.
      * Also see {@link #createMole()}.
      * @stable ICU 64
      */
     static MeasureUnit getMole();
 
     /**
      * Returns by pointer, unit of concentr: percent.
      * Caller owns returned value and must free it.
      * Also see {@link #getPercent()}.
      * @param status ICU error code.
      * @stable ICU 63
      */
     static MeasureUnit *createPercent(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: percent.
      * Also see {@link #createPercent()}.
      * @stable ICU 64
      */
     static MeasureUnit getPercent();
 
     /**
      * Returns by pointer, unit of concentr: permille.
      * Caller owns returned value and must free it.
      * Also see {@link #getPermille()}.
      * @param status ICU error code.
      * @stable ICU 63
      */
     static MeasureUnit *createPermille(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: permille.
      * Also see {@link #createPermille()}.
      * @stable ICU 64
      */
     static MeasureUnit getPermille();
 
     /**
      * Returns by pointer, unit of concentr: permillion.
      * Caller owns returned value and must free it.
      * Also see {@link #getPartPerMillion()}.
      * @param status ICU error code.
      * @stable ICU 57
      */
     static MeasureUnit *createPartPerMillion(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: permillion.
      * Also see {@link #createPartPerMillion()}.
      * @stable ICU 64
      */
     static MeasureUnit getPartPerMillion();
 
     /**
      * Returns by pointer, unit of concentr: permyriad.
      * Caller owns returned value and must free it.
      * Also see {@link #getPermyriad()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createPermyriad(UErrorCode &status);
 
     /**
      * Returns by value, unit of concentr: permyriad.
      * Also see {@link #createPermyriad()}.
      * @stable ICU 64
      */
     static MeasureUnit getPermyriad();
 
     /**
      * Returns by pointer, unit of consumption: liter-per-100-kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getLiterPer100Kilometers()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createLiterPer100Kilometers(UErrorCode &status);
 
     /**
      * Returns by value, unit of consumption: liter-per-100-kilometer.
      * Also see {@link #createLiterPer100Kilometers()}.
      * @stable ICU 64
      */
     static MeasureUnit getLiterPer100Kilometers();
 
     /**
      * Returns by pointer, unit of consumption: liter-per-kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getLiterPerKilometer()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createLiterPerKilometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of consumption: liter-per-kilometer.
      * Also see {@link #createLiterPerKilometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getLiterPerKilometer();
 
     /**
      * Returns by pointer, unit of consumption: mile-per-gallon.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilePerGallon()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMilePerGallon(UErrorCode &status);
 
     /**
      * Returns by value, unit of consumption: mile-per-gallon.
      * Also see {@link #createMilePerGallon()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilePerGallon();
 
     /**
      * Returns by pointer, unit of consumption: mile-per-gallon-imperial.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilePerGallonImperial()}.
      * @param status ICU error code.
      * @stable ICU 57
      */
     static MeasureUnit *createMilePerGallonImperial(UErrorCode &status);
 
     /**
      * Returns by value, unit of consumption: mile-per-gallon-imperial.
      * Also see {@link #createMilePerGallonImperial()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilePerGallonImperial();
 
     /**
      * Returns by pointer, unit of digital: bit.
      * Caller owns returned value and must free it.
      * Also see {@link #getBit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createBit(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: bit.
      * Also see {@link #createBit()}.
      * @stable ICU 64
      */
     static MeasureUnit getBit();
 
     /**
      * Returns by pointer, unit of digital: byte.
      * Caller owns returned value and must free it.
      * Also see {@link #getByte()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createByte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: byte.
      * Also see {@link #createByte()}.
      * @stable ICU 64
      */
     static MeasureUnit getByte();
 
     /**
      * Returns by pointer, unit of digital: gigabit.
      * Caller owns returned value and must free it.
      * Also see {@link #getGigabit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createGigabit(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: gigabit.
      * Also see {@link #createGigabit()}.
      * @stable ICU 64
      */
     static MeasureUnit getGigabit();
 
     /**
      * Returns by pointer, unit of digital: gigabyte.
      * Caller owns returned value and must free it.
      * Also see {@link #getGigabyte()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createGigabyte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: gigabyte.
      * Also see {@link #createGigabyte()}.
      * @stable ICU 64
      */
     static MeasureUnit getGigabyte();
 
     /**
      * Returns by pointer, unit of digital: kilobit.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilobit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilobit(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: kilobit.
      * Also see {@link #createKilobit()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilobit();
 
     /**
      * Returns by pointer, unit of digital: kilobyte.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilobyte()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilobyte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: kilobyte.
      * Also see {@link #createKilobyte()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilobyte();
 
     /**
      * Returns by pointer, unit of digital: megabit.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegabit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMegabit(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: megabit.
      * Also see {@link #createMegabit()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegabit();
 
     /**
      * Returns by pointer, unit of digital: megabyte.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegabyte()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMegabyte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: megabyte.
      * Also see {@link #createMegabyte()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegabyte();
 
     /**
      * Returns by pointer, unit of digital: petabyte.
      * Caller owns returned value and must free it.
      * Also see {@link #getPetabyte()}.
      * @param status ICU error code.
      * @stable ICU 63
      */
     static MeasureUnit *createPetabyte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: petabyte.
      * Also see {@link #createPetabyte()}.
      * @stable ICU 64
      */
     static MeasureUnit getPetabyte();
 
     /**
      * Returns by pointer, unit of digital: terabit.
      * Caller owns returned value and must free it.
      * Also see {@link #getTerabit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createTerabit(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: terabit.
      * Also see {@link #createTerabit()}.
      * @stable ICU 64
      */
     static MeasureUnit getTerabit();
 
     /**
      * Returns by pointer, unit of digital: terabyte.
      * Caller owns returned value and must free it.
      * Also see {@link #getTerabyte()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createTerabyte(UErrorCode &status);
 
     /**
      * Returns by value, unit of digital: terabyte.
      * Also see {@link #createTerabyte()}.
      * @stable ICU 64
      */
     static MeasureUnit getTerabyte();
 
     /**
      * Returns by pointer, unit of duration: century.
      * Caller owns returned value and must free it.
      * Also see {@link #getCentury()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createCentury(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: century.
      * Also see {@link #createCentury()}.
      * @stable ICU 64
      */
     static MeasureUnit getCentury();
 
     /**
      * Returns by pointer, unit of duration: day.
      * Caller owns returned value and must free it.
      * Also see {@link #getDay()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createDay(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: day.
      * Also see {@link #createDay()}.
      * @stable ICU 64
      */
     static MeasureUnit getDay();
 
     /**
      * Returns by pointer, unit of duration: day-person.
      * Caller owns returned value and must free it.
      * Also see {@link #getDayPerson()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createDayPerson(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: day-person.
      * Also see {@link #createDayPerson()}.
      * @stable ICU 64
      */
     static MeasureUnit getDayPerson();
 
     /**
      * Returns by pointer, unit of duration: decade.
      * Caller owns returned value and must free it.
      * Also see {@link #getDecade()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createDecade(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: decade.
      * Also see {@link #createDecade()}.
      * @stable ICU 65
      */
     static MeasureUnit getDecade();
 
     /**
      * Returns by pointer, unit of duration: hour.
      * Caller owns returned value and must free it.
      * Also see {@link #getHour()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createHour(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: hour.
      * Also see {@link #createHour()}.
      * @stable ICU 64
      */
     static MeasureUnit getHour();
 
     /**
      * Returns by pointer, unit of duration: microsecond.
      * Caller owns returned value and must free it.
      * Also see {@link #getMicrosecond()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMicrosecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: microsecond.
      * Also see {@link #createMicrosecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getMicrosecond();
 
     /**
      * Returns by pointer, unit of duration: millisecond.
      * Caller owns returned value and must free it.
      * Also see {@link #getMillisecond()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMillisecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: millisecond.
      * Also see {@link #createMillisecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getMillisecond();
 
     /**
      * Returns by pointer, unit of duration: minute.
      * Caller owns returned value and must free it.
      * Also see {@link #getMinute()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMinute(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: minute.
      * Also see {@link #createMinute()}.
      * @stable ICU 64
      */
     static MeasureUnit getMinute();
 
     /**
      * Returns by pointer, unit of duration: month.
      * Caller owns returned value and must free it.
      * Also see {@link #getMonth()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMonth(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: month.
      * Also see {@link #createMonth()}.
      * @stable ICU 64
      */
     static MeasureUnit getMonth();
 
     /**
      * Returns by pointer, unit of duration: month-person.
      * Caller owns returned value and must free it.
      * Also see {@link #getMonthPerson()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createMonthPerson(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: month-person.
      * Also see {@link #createMonthPerson()}.
      * @stable ICU 64
      */
     static MeasureUnit getMonthPerson();
 
     /**
      * Returns by pointer, unit of duration: nanosecond.
      * Caller owns returned value and must free it.
      * Also see {@link #getNanosecond()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createNanosecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: nanosecond.
      * Also see {@link #createNanosecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getNanosecond();
 
 #ifndef U_HIDE_DRAFT_API
     /**
      * Returns by pointer, unit of duration: night.
      * Caller owns returned value and must free it.
      * Also see {@link #getNight()}.
      * @param status ICU error code.
      * @draft ICU 76
      */
     static MeasureUnit *createNight(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: night.
      * Also see {@link #createNight()}.
      * @draft ICU 76
      */
     static MeasureUnit getNight();
 #endif /* U_HIDE_DRAFT_API */
 
     /**
      * Returns by pointer, unit of duration: quarter.
      * Caller owns returned value and must free it.
      * Also see {@link #getQuarter()}.
      * @param status ICU error code.
      * @stable ICU 72
      */
     static MeasureUnit *createQuarter(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: quarter.
      * Also see {@link #createQuarter()}.
      * @stable ICU 72
      */
     static MeasureUnit getQuarter();
 
     /**
      * Returns by pointer, unit of duration: second.
      * Caller owns returned value and must free it.
      * Also see {@link #getSecond()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createSecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: second.
      * Also see {@link #createSecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getSecond();
 
     /**
      * Returns by pointer, unit of duration: week.
      * Caller owns returned value and must free it.
      * Also see {@link #getWeek()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createWeek(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: week.
      * Also see {@link #createWeek()}.
      * @stable ICU 64
      */
     static MeasureUnit getWeek();
 
     /**
      * Returns by pointer, unit of duration: week-person.
      * Caller owns returned value and must free it.
      * Also see {@link #getWeekPerson()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createWeekPerson(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: week-person.
      * Also see {@link #createWeekPerson()}.
      * @stable ICU 64
      */
     static MeasureUnit getWeekPerson();
 
     /**
      * Returns by pointer, unit of duration: year.
      * Caller owns returned value and must free it.
      * Also see {@link #getYear()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createYear(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: year.
      * Also see {@link #createYear()}.
      * @stable ICU 64
      */
     static MeasureUnit getYear();
 
     /**
      * Returns by pointer, unit of duration: year-person.
      * Caller owns returned value and must free it.
      * Also see {@link #getYearPerson()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createYearPerson(UErrorCode &status);
 
     /**
      * Returns by value, unit of duration: year-person.
      * Also see {@link #createYearPerson()}.
      * @stable ICU 64
      */
     static MeasureUnit getYearPerson();
 
     /**
      * Returns by pointer, unit of electric: ampere.
      * Caller owns returned value and must free it.
      * Also see {@link #getAmpere()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createAmpere(UErrorCode &status);
 
     /**
      * Returns by value, unit of electric: ampere.
      * Also see {@link #createAmpere()}.
      * @stable ICU 64
      */
     static MeasureUnit getAmpere();
 
     /**
      * Returns by pointer, unit of electric: milliampere.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilliampere()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMilliampere(UErrorCode &status);
 
     /**
      * Returns by value, unit of electric: milliampere.
      * Also see {@link #createMilliampere()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilliampere();
 
     /**
      * Returns by pointer, unit of electric: ohm.
      * Caller owns returned value and must free it.
      * Also see {@link #getOhm()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createOhm(UErrorCode &status);
 
     /**
      * Returns by value, unit of electric: ohm.
      * Also see {@link #createOhm()}.
      * @stable ICU 64
      */
     static MeasureUnit getOhm();
 
     /**
      * Returns by pointer, unit of electric: volt.
      * Caller owns returned value and must free it.
      * Also see {@link #getVolt()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createVolt(UErrorCode &status);
 
     /**
      * Returns by value, unit of electric: volt.
      * Also see {@link #createVolt()}.
      * @stable ICU 64
      */
     static MeasureUnit getVolt();
 
     /**
      * Returns by pointer, unit of energy: british-thermal-unit.
      * Caller owns returned value and must free it.
      * Also see {@link #getBritishThermalUnit()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createBritishThermalUnit(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: british-thermal-unit.
      * Also see {@link #createBritishThermalUnit()}.
      * @stable ICU 64
      */
     static MeasureUnit getBritishThermalUnit();
 
     /**
      * Returns by pointer, unit of energy: calorie.
      * Caller owns returned value and must free it.
      * Also see {@link #getCalorie()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCalorie(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: calorie.
      * Also see {@link #createCalorie()}.
      * @stable ICU 64
      */
     static MeasureUnit getCalorie();
 
     /**
      * Returns by pointer, unit of energy: electronvolt.
      * Caller owns returned value and must free it.
      * Also see {@link #getElectronvolt()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createElectronvolt(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: electronvolt.
      * Also see {@link #createElectronvolt()}.
      * @stable ICU 64
      */
     static MeasureUnit getElectronvolt();
 
     /**
      * Returns by pointer, unit of energy: foodcalorie.
      * Caller owns returned value and must free it.
      * Also see {@link #getFoodcalorie()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createFoodcalorie(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: foodcalorie.
      * Also see {@link #createFoodcalorie()}.
      * @stable ICU 64
      */
     static MeasureUnit getFoodcalorie();
 
     /**
      * Returns by pointer, unit of energy: joule.
      * Caller owns returned value and must free it.
      * Also see {@link #getJoule()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createJoule(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: joule.
      * Also see {@link #createJoule()}.
      * @stable ICU 64
      */
     static MeasureUnit getJoule();
 
     /**
      * Returns by pointer, unit of energy: kilocalorie.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilocalorie()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilocalorie(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: kilocalorie.
      * Also see {@link #createKilocalorie()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilocalorie();
 
     /**
      * Returns by pointer, unit of energy: kilojoule.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilojoule()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilojoule(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: kilojoule.
      * Also see {@link #createKilojoule()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilojoule();
 
     /**
      * Returns by pointer, unit of energy: kilowatt-hour.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilowattHour()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilowattHour(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: kilowatt-hour.
      * Also see {@link #createKilowattHour()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilowattHour();
 
     /**
      * Returns by pointer, unit of energy: therm-us.
      * Caller owns returned value and must free it.
      * Also see {@link #getThermUs()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createThermUs(UErrorCode &status);
 
     /**
      * Returns by value, unit of energy: therm-us.
      * Also see {@link #createThermUs()}.
      * @stable ICU 65
      */
     static MeasureUnit getThermUs();
 
     /**
      * Returns by pointer, unit of force: kilowatt-hour-per-100-kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilowattHourPer100Kilometer()}.
      * @param status ICU error code.
      * @stable ICU 70
      */
     static MeasureUnit *createKilowattHourPer100Kilometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of force: kilowatt-hour-per-100-kilometer.
      * Also see {@link #createKilowattHourPer100Kilometer()}.
      * @stable ICU 70
      */
     static MeasureUnit getKilowattHourPer100Kilometer();
 
     /**
      * Returns by pointer, unit of force: newton.
      * Caller owns returned value and must free it.
      * Also see {@link #getNewton()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createNewton(UErrorCode &status);
 
     /**
      * Returns by value, unit of force: newton.
      * Also see {@link #createNewton()}.
      * @stable ICU 64
      */
     static MeasureUnit getNewton();
 
     /**
      * Returns by pointer, unit of force: pound-force.
      * Caller owns returned value and must free it.
      * Also see {@link #getPoundForce()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createPoundForce(UErrorCode &status);
 
     /**
      * Returns by value, unit of force: pound-force.
      * Also see {@link #createPoundForce()}.
      * @stable ICU 64
      */
     static MeasureUnit getPoundForce();
 
     /**
      * Returns by pointer, unit of frequency: gigahertz.
      * Caller owns returned value and must free it.
      * Also see {@link #getGigahertz()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createGigahertz(UErrorCode &status);
 
     /**
      * Returns by value, unit of frequency: gigahertz.
      * Also see {@link #createGigahertz()}.
      * @stable ICU 64
      */
     static MeasureUnit getGigahertz();
 
     /**
      * Returns by pointer, unit of frequency: hertz.
      * Caller owns returned value and must free it.
      * Also see {@link #getHertz()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createHertz(UErrorCode &status);
 
     /**
      * Returns by value, unit of frequency: hertz.
      * Also see {@link #createHertz()}.
      * @stable ICU 64
      */
     static MeasureUnit getHertz();
 
     /**
      * Returns by pointer, unit of frequency: kilohertz.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilohertz()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKilohertz(UErrorCode &status);
 
     /**
      * Returns by value, unit of frequency: kilohertz.
      * Also see {@link #createKilohertz()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilohertz();
 
     /**
      * Returns by pointer, unit of frequency: megahertz.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegahertz()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMegahertz(UErrorCode &status);
 
     /**
      * Returns by value, unit of frequency: megahertz.
      * Also see {@link #createMegahertz()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegahertz();
 
     /**
      * Returns by pointer, unit of graphics: dot.
      * Caller owns returned value and must free it.
      * Also see {@link #getDot()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createDot(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: dot.
      * Also see {@link #createDot()}.
      * @stable ICU 68
      */
     static MeasureUnit getDot();
 
     /**
      * Returns by pointer, unit of graphics: dot-per-centimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getDotPerCentimeter()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createDotPerCentimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: dot-per-centimeter.
      * Also see {@link #createDotPerCentimeter()}.
      * @stable ICU 65
      */
     static MeasureUnit getDotPerCentimeter();
 
     /**
      * Returns by pointer, unit of graphics: dot-per-inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getDotPerInch()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createDotPerInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: dot-per-inch.
      * Also see {@link #createDotPerInch()}.
      * @stable ICU 65
      */
     static MeasureUnit getDotPerInch();
 
     /**
      * Returns by pointer, unit of graphics: em.
      * Caller owns returned value and must free it.
      * Also see {@link #getEm()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createEm(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: em.
      * Also see {@link #createEm()}.
      * @stable ICU 65
      */
     static MeasureUnit getEm();
 
     /**
      * Returns by pointer, unit of graphics: megapixel.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegapixel()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createMegapixel(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: megapixel.
      * Also see {@link #createMegapixel()}.
      * @stable ICU 65
      */
     static MeasureUnit getMegapixel();
 
     /**
      * Returns by pointer, unit of graphics: pixel.
      * Caller owns returned value and must free it.
      * Also see {@link #getPixel()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createPixel(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: pixel.
      * Also see {@link #createPixel()}.
      * @stable ICU 65
      */
     static MeasureUnit getPixel();
 
     /**
      * Returns by pointer, unit of graphics: pixel-per-centimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getPixelPerCentimeter()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createPixelPerCentimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: pixel-per-centimeter.
      * Also see {@link #createPixelPerCentimeter()}.
      * @stable ICU 65
      */
     static MeasureUnit getPixelPerCentimeter();
 
     /**
      * Returns by pointer, unit of graphics: pixel-per-inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getPixelPerInch()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createPixelPerInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of graphics: pixel-per-inch.
      * Also see {@link #createPixelPerInch()}.
      * @stable ICU 65
      */
     static MeasureUnit getPixelPerInch();
 
     /**
      * Returns by pointer, unit of length: astronomical-unit.
      * Caller owns returned value and must free it.
      * Also see {@link #getAstronomicalUnit()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createAstronomicalUnit(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: astronomical-unit.
      * Also see {@link #createAstronomicalUnit()}.
      * @stable ICU 64
      */
     static MeasureUnit getAstronomicalUnit();
 
     /**
      * Returns by pointer, unit of length: centimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getCentimeter()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createCentimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: centimeter.
      * Also see {@link #createCentimeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getCentimeter();
 
     /**
      * Returns by pointer, unit of length: decimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getDecimeter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createDecimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: decimeter.
      * Also see {@link #createDecimeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getDecimeter();
 
     /**
      * Returns by pointer, unit of length: earth-radius.
      * Caller owns returned value and must free it.
      * Also see {@link #getEarthRadius()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createEarthRadius(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: earth-radius.
      * Also see {@link #createEarthRadius()}.
      * @stable ICU 68
      */
     static MeasureUnit getEarthRadius();
 
     /**
      * Returns by pointer, unit of length: fathom.
      * Caller owns returned value and must free it.
      * Also see {@link #getFathom()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createFathom(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: fathom.
      * Also see {@link #createFathom()}.
      * @stable ICU 64
      */
     static MeasureUnit getFathom();
 
     /**
      * Returns by pointer, unit of length: foot.
      * Caller owns returned value and must free it.
      * Also see {@link #getFoot()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createFoot(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: foot.
      * Also see {@link #createFoot()}.
      * @stable ICU 64
      */
     static MeasureUnit getFoot();
 
     /**
      * Returns by pointer, unit of length: furlong.
      * Caller owns returned value and must free it.
      * Also see {@link #getFurlong()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createFurlong(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: furlong.
      * Also see {@link #createFurlong()}.
      * @stable ICU 64
      */
     static MeasureUnit getFurlong();
 
     /**
      * Returns by pointer, unit of length: inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getInch()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: inch.
      * Also see {@link #createInch()}.
      * @stable ICU 64
      */
     static MeasureUnit getInch();
 
     /**
      * Returns by pointer, unit of length: kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilometer()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createKilometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: kilometer.
      * Also see {@link #createKilometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilometer();
 
     /**
      * Returns by pointer, unit of length: light-year.
      * Caller owns returned value and must free it.
      * Also see {@link #getLightYear()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createLightYear(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: light-year.
      * Also see {@link #createLightYear()}.
      * @stable ICU 64
      */
     static MeasureUnit getLightYear();
 
     /**
      * Returns by pointer, unit of length: meter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMeter()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: meter.
      * Also see {@link #createMeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMeter();
 
     /**
      * Returns by pointer, unit of length: micrometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getMicrometer()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMicrometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: micrometer.
      * Also see {@link #createMicrometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getMicrometer();
 
     /**
      * Returns by pointer, unit of length: mile.
      * Caller owns returned value and must free it.
      * Also see {@link #getMile()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMile(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: mile.
      * Also see {@link #createMile()}.
      * @stable ICU 64
      */
     static MeasureUnit getMile();
 
     /**
      * Returns by pointer, unit of length: mile-scandinavian.
      * Caller owns returned value and must free it.
      * Also see {@link #getMileScandinavian()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createMileScandinavian(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: mile-scandinavian.
      * Also see {@link #createMileScandinavian()}.
      * @stable ICU 64
      */
     static MeasureUnit getMileScandinavian();
 
     /**
      * Returns by pointer, unit of length: millimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMillimeter()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMillimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: millimeter.
      * Also see {@link #createMillimeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMillimeter();
 
     /**
      * Returns by pointer, unit of length: nanometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getNanometer()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createNanometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: nanometer.
      * Also see {@link #createNanometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getNanometer();
 
     /**
      * Returns by pointer, unit of length: nautical-mile.
      * Caller owns returned value and must free it.
      * Also see {@link #getNauticalMile()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createNauticalMile(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: nautical-mile.
      * Also see {@link #createNauticalMile()}.
      * @stable ICU 64
      */
     static MeasureUnit getNauticalMile();
 
     /**
      * Returns by pointer, unit of length: parsec.
      * Caller owns returned value and must free it.
      * Also see {@link #getParsec()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createParsec(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: parsec.
      * Also see {@link #createParsec()}.
      * @stable ICU 64
      */
     static MeasureUnit getParsec();
 
     /**
      * Returns by pointer, unit of length: picometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getPicometer()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createPicometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: picometer.
      * Also see {@link #createPicometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getPicometer();
 
     /**
      * Returns by pointer, unit of length: point.
      * Caller owns returned value and must free it.
      * Also see {@link #getPoint()}.
      * @param status ICU error code.
      * @stable ICU 59
      */
     static MeasureUnit *createPoint(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: point.
      * Also see {@link #createPoint()}.
      * @stable ICU 64
      */
     static MeasureUnit getPoint();
 
     /**
      * Returns by pointer, unit of length: solar-radius.
      * Caller owns returned value and must free it.
      * Also see {@link #getSolarRadius()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createSolarRadius(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: solar-radius.
      * Also see {@link #createSolarRadius()}.
      * @stable ICU 64
      */
     static MeasureUnit getSolarRadius();
 
     /**
      * Returns by pointer, unit of length: yard.
      * Caller owns returned value and must free it.
      * Also see {@link #getYard()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createYard(UErrorCode &status);
 
     /**
      * Returns by value, unit of length: yard.
      * Also see {@link #createYard()}.
      * @stable ICU 64
      */
     static MeasureUnit getYard();
 
     /**
      * Returns by pointer, unit of light: candela.
      * Caller owns returned value and must free it.
      * Also see {@link #getCandela()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createCandela(UErrorCode &status);
 
     /**
      * Returns by value, unit of light: candela.
      * Also see {@link #createCandela()}.
      * @stable ICU 68
      */
     static MeasureUnit getCandela();
 
     /**
      * Returns by pointer, unit of light: lumen.
      * Caller owns returned value and must free it.
      * Also see {@link #getLumen()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createLumen(UErrorCode &status);
 
     /**
      * Returns by value, unit of light: lumen.
      * Also see {@link #createLumen()}.
      * @stable ICU 68
      */
     static MeasureUnit getLumen();
 
     /**
      * Returns by pointer, unit of light: lux.
      * Caller owns returned value and must free it.
      * Also see {@link #getLux()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createLux(UErrorCode &status);
 
     /**
      * Returns by value, unit of light: lux.
      * Also see {@link #createLux()}.
      * @stable ICU 64
      */
     static MeasureUnit getLux();
 
     /**
      * Returns by pointer, unit of light: solar-luminosity.
      * Caller owns returned value and must free it.
      * Also see {@link #getSolarLuminosity()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createSolarLuminosity(UErrorCode &status);
 
     /**
      * Returns by value, unit of light: solar-luminosity.
      * Also see {@link #createSolarLuminosity()}.
      * @stable ICU 64
      */
     static MeasureUnit getSolarLuminosity();
 
     /**
      * Returns by pointer, unit of mass: carat.
      * Caller owns returned value and must free it.
      * Also see {@link #getCarat()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCarat(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: carat.
      * Also see {@link #createCarat()}.
      * @stable ICU 64
      */
     static MeasureUnit getCarat();
 
     /**
      * Returns by pointer, unit of mass: dalton.
      * Caller owns returned value and must free it.
      * Also see {@link #getDalton()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createDalton(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: dalton.
      * Also see {@link #createDalton()}.
      * @stable ICU 64
      */
     static MeasureUnit getDalton();
 
     /**
      * Returns by pointer, unit of mass: earth-mass.
      * Caller owns returned value and must free it.
      * Also see {@link #getEarthMass()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createEarthMass(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: earth-mass.
      * Also see {@link #createEarthMass()}.
      * @stable ICU 64
      */
     static MeasureUnit getEarthMass();
 
     /**
      * Returns by pointer, unit of mass: grain.
      * Caller owns returned value and must free it.
      * Also see {@link #getGrain()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createGrain(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: grain.
      * Also see {@link #createGrain()}.
      * @stable ICU 68
      */
     static MeasureUnit getGrain();
 
     /**
      * Returns by pointer, unit of mass: gram.
      * Caller owns returned value and must free it.
      * Also see {@link #getGram()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createGram(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: gram.
      * Also see {@link #createGram()}.
      * @stable ICU 64
      */
     static MeasureUnit getGram();
 
     /**
      * Returns by pointer, unit of mass: kilogram.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilogram()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createKilogram(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: kilogram.
      * Also see {@link #createKilogram()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilogram();
 
     /**
      * Returns by pointer, unit of mass: microgram.
      * Caller owns returned value and must free it.
      * Also see {@link #getMicrogram()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMicrogram(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: microgram.
      * Also see {@link #createMicrogram()}.
      * @stable ICU 64
      */
     static MeasureUnit getMicrogram();
 
     /**
      * Returns by pointer, unit of mass: milligram.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilligram()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMilligram(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: milligram.
      * Also see {@link #createMilligram()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilligram();
 
     /**
      * Returns by pointer, unit of mass: ounce.
      * Caller owns returned value and must free it.
      * Also see {@link #getOunce()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createOunce(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: ounce.
      * Also see {@link #createOunce()}.
      * @stable ICU 64
      */
     static MeasureUnit getOunce();
 
     /**
      * Returns by pointer, unit of mass: ounce-troy.
      * Caller owns returned value and must free it.
      * Also see {@link #getOunceTroy()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createOunceTroy(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: ounce-troy.
      * Also see {@link #createOunceTroy()}.
      * @stable ICU 64
      */
     static MeasureUnit getOunceTroy();
 
     /**
      * Returns by pointer, unit of mass: pound.
      * Caller owns returned value and must free it.
      * Also see {@link #getPound()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createPound(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: pound.
      * Also see {@link #createPound()}.
      * @stable ICU 64
      */
     static MeasureUnit getPound();
 
     /**
      * Returns by pointer, unit of mass: solar-mass.
      * Caller owns returned value and must free it.
      * Also see {@link #getSolarMass()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createSolarMass(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: solar-mass.
      * Also see {@link #createSolarMass()}.
      * @stable ICU 64
      */
     static MeasureUnit getSolarMass();
 
     /**
      * Returns by pointer, unit of mass: stone.
      * Caller owns returned value and must free it.
      * Also see {@link #getStone()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createStone(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: stone.
      * Also see {@link #createStone()}.
      * @stable ICU 64
      */
     static MeasureUnit getStone();
 
     /**
      * Returns by pointer, unit of mass: ton.
      * Caller owns returned value and must free it.
      * Also see {@link #getTon()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createTon(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: ton.
      * Also see {@link #createTon()}.
      * @stable ICU 64
      */
     static MeasureUnit getTon();
 
     /**
      * Returns by pointer, unit of mass: tonne.
      * Caller owns returned value and must free it.
      * Also see {@link #getTonne()}.
      * @param status ICU error code.
      * @stable ICU 72
      */
     static MeasureUnit *createTonne(UErrorCode &status);
 
     /**
      * Returns by value, unit of mass: tonne.
      * Also see {@link #createTonne()}.
      * @stable ICU 72
      */
     static MeasureUnit getTonne();
 
     /**
      * 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 {@link #getMetricTon()} and {@link #createTonne()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMetricTon(UErrorCode &status);
 
     /**
      * 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 {@link #createMetricTon()} and {@link #getTonne()}.
      * @stable ICU 64
      */
     static MeasureUnit getMetricTon();
 
     /**
      * Returns by pointer, unit of power: gigawatt.
      * Caller owns returned value and must free it.
      * Also see {@link #getGigawatt()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createGigawatt(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: gigawatt.
      * Also see {@link #createGigawatt()}.
      * @stable ICU 64
      */
     static MeasureUnit getGigawatt();
 
     /**
      * Returns by pointer, unit of power: horsepower.
      * Caller owns returned value and must free it.
      * Also see {@link #getHorsepower()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createHorsepower(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: horsepower.
      * Also see {@link #createHorsepower()}.
      * @stable ICU 64
      */
     static MeasureUnit getHorsepower();
 
     /**
      * Returns by pointer, unit of power: kilowatt.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilowatt()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createKilowatt(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: kilowatt.
      * Also see {@link #createKilowatt()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilowatt();
 
     /**
      * Returns by pointer, unit of power: megawatt.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegawatt()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMegawatt(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: megawatt.
      * Also see {@link #createMegawatt()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegawatt();
 
     /**
      * Returns by pointer, unit of power: milliwatt.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilliwatt()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMilliwatt(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: milliwatt.
      * Also see {@link #createMilliwatt()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilliwatt();
 
     /**
      * Returns by pointer, unit of power: watt.
      * Caller owns returned value and must free it.
      * Also see {@link #getWatt()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createWatt(UErrorCode &status);
 
     /**
      * Returns by value, unit of power: watt.
      * Also see {@link #createWatt()}.
      * @stable ICU 64
      */
     static MeasureUnit getWatt();
 
     /**
      * Returns by pointer, unit of pressure: atmosphere.
      * Caller owns returned value and must free it.
      * Also see {@link #getAtmosphere()}.
      * @param status ICU error code.
      * @stable ICU 63
      */
     static MeasureUnit *createAtmosphere(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: atmosphere.
      * Also see {@link #createAtmosphere()}.
      * @stable ICU 64
      */
     static MeasureUnit getAtmosphere();
 
     /**
      * Returns by pointer, unit of pressure: bar.
      * Caller owns returned value and must free it.
      * Also see {@link #getBar()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createBar(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: bar.
      * Also see {@link #createBar()}.
      * @stable ICU 65
      */
     static MeasureUnit getBar();
 
     /**
      * Returns by pointer, unit of pressure: gasoline-energy-density.
      * Caller owns returned value and must free it.
      * Also see {@link #getGasolineEnergyDensity()}.
      * @param status ICU error code.
      * @stable ICU 74
      */
     static MeasureUnit *createGasolineEnergyDensity(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: gasoline-energy-density.
      * Also see {@link #createGasolineEnergyDensity()}.
      * @stable ICU 74
      */
     static MeasureUnit getGasolineEnergyDensity();
 
     /**
      * Returns by pointer, unit of pressure: hectopascal.
      * Caller owns returned value and must free it.
      * Also see {@link #getHectopascal()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createHectopascal(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: hectopascal.
      * Also see {@link #createHectopascal()}.
      * @stable ICU 64
      */
     static MeasureUnit getHectopascal();
 
     /**
      * Returns by pointer, unit of pressure: inch-ofhg.
      * Caller owns returned value and must free it.
      * Also see {@link #getInchHg()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createInchHg(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: inch-ofhg.
      * Also see {@link #createInchHg()}.
      * @stable ICU 64
      */
     static MeasureUnit getInchHg();
 
     /**
      * Returns by pointer, unit of pressure: kilopascal.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilopascal()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createKilopascal(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: kilopascal.
      * Also see {@link #createKilopascal()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilopascal();
 
     /**
      * Returns by pointer, unit of pressure: megapascal.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegapascal()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createMegapascal(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: megapascal.
      * Also see {@link #createMegapascal()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegapascal();
 
     /**
      * Returns by pointer, unit of pressure: millibar.
      * Caller owns returned value and must free it.
      * Also see {@link #getMillibar()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMillibar(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: millibar.
      * Also see {@link #createMillibar()}.
      * @stable ICU 64
      */
     static MeasureUnit getMillibar();
 
     /**
      * Returns by pointer, unit of pressure: millimeter-ofhg.
      * Caller owns returned value and must free it.
      * Also see {@link #getMillimeterOfMercury()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMillimeterOfMercury(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: millimeter-ofhg.
      * Also see {@link #createMillimeterOfMercury()}.
      * @stable ICU 64
      */
     static MeasureUnit getMillimeterOfMercury();
 
     /**
      * Returns by pointer, unit of pressure: pascal.
      * Caller owns returned value and must free it.
      * Also see {@link #getPascal()}.
      * @param status ICU error code.
      * @stable ICU 65
      */
     static MeasureUnit *createPascal(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: pascal.
      * Also see {@link #createPascal()}.
      * @stable ICU 65
      */
     static MeasureUnit getPascal();
 
     /**
      * Returns by pointer, unit of pressure: pound-force-per-square-inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getPoundPerSquareInch()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createPoundPerSquareInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of pressure: pound-force-per-square-inch.
      * Also see {@link #createPoundPerSquareInch()}.
      * @stable ICU 64
      */
     static MeasureUnit getPoundPerSquareInch();
 
     /**
      * Returns by pointer, unit of speed: beaufort.
      * Caller owns returned value and must free it.
      * Also see {@link #getBeaufort()}.
      * @param status ICU error code.
      * @stable ICU 73
      */
     static MeasureUnit *createBeaufort(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: beaufort.
      * Also see {@link #createBeaufort()}.
      * @stable ICU 73
      */
     static MeasureUnit getBeaufort();
 
     /**
      * Returns by pointer, unit of speed: kilometer-per-hour.
      * Caller owns returned value and must free it.
      * Also see {@link #getKilometerPerHour()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createKilometerPerHour(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: kilometer-per-hour.
      * Also see {@link #createKilometerPerHour()}.
      * @stable ICU 64
      */
     static MeasureUnit getKilometerPerHour();
 
     /**
      * Returns by pointer, unit of speed: knot.
      * Caller owns returned value and must free it.
      * Also see {@link #getKnot()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createKnot(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: knot.
      * Also see {@link #createKnot()}.
      * @stable ICU 64
      */
     static MeasureUnit getKnot();
 
 #ifndef U_HIDE_DRAFT_API
     /**
      * Returns by pointer, unit of speed: light-speed.
      * Caller owns returned value and must free it.
      * Also see {@link #getLightSpeed()}.
      * @param status ICU error code.
      * @draft ICU 76
      */
     static MeasureUnit *createLightSpeed(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: light-speed.
      * Also see {@link #createLightSpeed()}.
      * @draft ICU 76
      */
     static MeasureUnit getLightSpeed();
 #endif /* U_HIDE_DRAFT_API */
 
     /**
      * Returns by pointer, unit of speed: meter-per-second.
      * Caller owns returned value and must free it.
      * Also see {@link #getMeterPerSecond()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMeterPerSecond(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: meter-per-second.
      * Also see {@link #createMeterPerSecond()}.
      * @stable ICU 64
      */
     static MeasureUnit getMeterPerSecond();
 
     /**
      * Returns by pointer, unit of speed: mile-per-hour.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilePerHour()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createMilePerHour(UErrorCode &status);
 
     /**
      * Returns by value, unit of speed: mile-per-hour.
      * Also see {@link #createMilePerHour()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilePerHour();
 
     /**
      * Returns by pointer, unit of temperature: celsius.
      * Caller owns returned value and must free it.
      * Also see {@link #getCelsius()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createCelsius(UErrorCode &status);
 
     /**
      * Returns by value, unit of temperature: celsius.
      * Also see {@link #createCelsius()}.
      * @stable ICU 64
      */
     static MeasureUnit getCelsius();
 
     /**
      * Returns by pointer, unit of temperature: fahrenheit.
      * Caller owns returned value and must free it.
      * Also see {@link #getFahrenheit()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createFahrenheit(UErrorCode &status);
 
     /**
      * Returns by value, unit of temperature: fahrenheit.
      * Also see {@link #createFahrenheit()}.
      * @stable ICU 64
      */
     static MeasureUnit getFahrenheit();
 
     /**
      * Returns by pointer, unit of temperature: generic.
      * Caller owns returned value and must free it.
      * Also see {@link #getGenericTemperature()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createGenericTemperature(UErrorCode &status);
 
     /**
      * Returns by value, unit of temperature: generic.
      * Also see {@link #createGenericTemperature()}.
      * @stable ICU 64
      */
     static MeasureUnit getGenericTemperature();
 
     /**
      * Returns by pointer, unit of temperature: kelvin.
      * Caller owns returned value and must free it.
      * Also see {@link #getKelvin()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createKelvin(UErrorCode &status);
 
     /**
      * Returns by value, unit of temperature: kelvin.
      * Also see {@link #createKelvin()}.
      * @stable ICU 64
      */
     static MeasureUnit getKelvin();
 
     /**
      * Returns by pointer, unit of torque: newton-meter.
      * Caller owns returned value and must free it.
      * Also see {@link #getNewtonMeter()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createNewtonMeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of torque: newton-meter.
      * Also see {@link #createNewtonMeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getNewtonMeter();
 
     /**
      * Returns by pointer, unit of torque: pound-force-foot.
      * Caller owns returned value and must free it.
      * Also see {@link #getPoundFoot()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createPoundFoot(UErrorCode &status);
 
     /**
      * Returns by value, unit of torque: pound-force-foot.
      * Also see {@link #createPoundFoot()}.
      * @stable ICU 64
      */
     static MeasureUnit getPoundFoot();
 
     /**
      * Returns by pointer, unit of volume: acre-foot.
      * Caller owns returned value and must free it.
      * Also see {@link #getAcreFoot()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createAcreFoot(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: acre-foot.
      * Also see {@link #createAcreFoot()}.
      * @stable ICU 64
      */
     static MeasureUnit getAcreFoot();
 
     /**
      * Returns by pointer, unit of volume: barrel.
      * Caller owns returned value and must free it.
      * Also see {@link #getBarrel()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createBarrel(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: barrel.
      * Also see {@link #createBarrel()}.
      * @stable ICU 64
      */
     static MeasureUnit getBarrel();
 
     /**
      * Returns by pointer, unit of volume: bushel.
      * Caller owns returned value and must free it.
      * Also see {@link #getBushel()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createBushel(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: bushel.
      * Also see {@link #createBushel()}.
      * @stable ICU 64
      */
     static MeasureUnit getBushel();
 
     /**
      * Returns by pointer, unit of volume: centiliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getCentiliter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCentiliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: centiliter.
      * Also see {@link #createCentiliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getCentiliter();
 
     /**
      * Returns by pointer, unit of volume: cubic-centimeter.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicCentimeter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCubicCentimeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-centimeter.
      * Also see {@link #createCubicCentimeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicCentimeter();
 
     /**
      * Returns by pointer, unit of volume: cubic-foot.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicFoot()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCubicFoot(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-foot.
      * Also see {@link #createCubicFoot()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicFoot();
 
     /**
      * Returns by pointer, unit of volume: cubic-inch.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicInch()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCubicInch(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-inch.
      * Also see {@link #createCubicInch()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicInch();
 
     /**
      * Returns by pointer, unit of volume: cubic-kilometer.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicKilometer()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createCubicKilometer(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-kilometer.
      * Also see {@link #createCubicKilometer()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicKilometer();
 
     /**
      * Returns by pointer, unit of volume: cubic-meter.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicMeter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCubicMeter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-meter.
      * Also see {@link #createCubicMeter()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicMeter();
 
     /**
      * Returns by pointer, unit of volume: cubic-mile.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicMile()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createCubicMile(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-mile.
      * Also see {@link #createCubicMile()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicMile();
 
     /**
      * Returns by pointer, unit of volume: cubic-yard.
      * Caller owns returned value and must free it.
      * Also see {@link #getCubicYard()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCubicYard(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cubic-yard.
      * Also see {@link #createCubicYard()}.
      * @stable ICU 64
      */
     static MeasureUnit getCubicYard();
 
     /**
      * Returns by pointer, unit of volume: cup.
      * Caller owns returned value and must free it.
      * Also see {@link #getCup()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createCup(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cup.
      * Also see {@link #createCup()}.
      * @stable ICU 64
      */
     static MeasureUnit getCup();
 
     /**
      * Returns by pointer, unit of volume: cup-metric.
      * Caller owns returned value and must free it.
      * Also see {@link #getCupMetric()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createCupMetric(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: cup-metric.
      * Also see {@link #createCupMetric()}.
      * @stable ICU 64
      */
     static MeasureUnit getCupMetric();
 
     /**
      * Returns by pointer, unit of volume: deciliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getDeciliter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createDeciliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: deciliter.
      * Also see {@link #createDeciliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getDeciliter();
 
     /**
      * Returns by pointer, unit of volume: dessert-spoon.
      * Caller owns returned value and must free it.
      * Also see {@link #getDessertSpoon()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createDessertSpoon(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: dessert-spoon.
      * Also see {@link #createDessertSpoon()}.
      * @stable ICU 68
      */
     static MeasureUnit getDessertSpoon();
 
     /**
      * Returns by pointer, unit of volume: dessert-spoon-imperial.
      * Caller owns returned value and must free it.
      * Also see {@link #getDessertSpoonImperial()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createDessertSpoonImperial(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: dessert-spoon-imperial.
      * Also see {@link #createDessertSpoonImperial()}.
      * @stable ICU 68
      */
     static MeasureUnit getDessertSpoonImperial();
 
     /**
      * Returns by pointer, unit of volume: dram.
      * Caller owns returned value and must free it.
      * Also see {@link #getDram()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createDram(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: dram.
      * Also see {@link #createDram()}.
      * @stable ICU 68
      */
     static MeasureUnit getDram();
 
     /**
      * Returns by pointer, unit of volume: drop.
      * Caller owns returned value and must free it.
      * Also see {@link #getDrop()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createDrop(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: drop.
      * Also see {@link #createDrop()}.
      * @stable ICU 68
      */
     static MeasureUnit getDrop();
 
     /**
      * Returns by pointer, unit of volume: fluid-ounce.
      * Caller owns returned value and must free it.
      * Also see {@link #getFluidOunce()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createFluidOunce(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: fluid-ounce.
      * Also see {@link #createFluidOunce()}.
      * @stable ICU 64
      */
     static MeasureUnit getFluidOunce();
 
     /**
      * Returns by pointer, unit of volume: fluid-ounce-imperial.
      * Caller owns returned value and must free it.
      * Also see {@link #getFluidOunceImperial()}.
      * @param status ICU error code.
      * @stable ICU 64
      */
     static MeasureUnit *createFluidOunceImperial(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: fluid-ounce-imperial.
      * Also see {@link #createFluidOunceImperial()}.
      * @stable ICU 64
      */
     static MeasureUnit getFluidOunceImperial();
 
     /**
      * Returns by pointer, unit of volume: gallon.
      * Caller owns returned value and must free it.
      * Also see {@link #getGallon()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createGallon(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: gallon.
      * Also see {@link #createGallon()}.
      * @stable ICU 64
      */
     static MeasureUnit getGallon();
 
     /**
      * Returns by pointer, unit of volume: gallon-imperial.
      * Caller owns returned value and must free it.
      * Also see {@link #getGallonImperial()}.
      * @param status ICU error code.
      * @stable ICU 57
      */
     static MeasureUnit *createGallonImperial(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: gallon-imperial.
      * Also see {@link #createGallonImperial()}.
      * @stable ICU 64
      */
     static MeasureUnit getGallonImperial();
 
     /**
      * Returns by pointer, unit of volume: hectoliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getHectoliter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createHectoliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: hectoliter.
      * Also see {@link #createHectoliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getHectoliter();
 
     /**
      * Returns by pointer, unit of volume: jigger.
      * Caller owns returned value and must free it.
      * Also see {@link #getJigger()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createJigger(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: jigger.
      * Also see {@link #createJigger()}.
      * @stable ICU 68
      */
     static MeasureUnit getJigger();
 
     /**
      * Returns by pointer, unit of volume: liter.
      * Caller owns returned value and must free it.
      * Also see {@link #getLiter()}.
      * @param status ICU error code.
      * @stable ICU 53
      */
     static MeasureUnit *createLiter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: liter.
      * Also see {@link #createLiter()}.
      * @stable ICU 64
      */
     static MeasureUnit getLiter();
 
     /**
      * Returns by pointer, unit of volume: megaliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMegaliter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMegaliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: megaliter.
      * Also see {@link #createMegaliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMegaliter();
 
     /**
      * Returns by pointer, unit of volume: milliliter.
      * Caller owns returned value and must free it.
      * Also see {@link #getMilliliter()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMilliliter(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: milliliter.
      * Also see {@link #createMilliliter()}.
      * @stable ICU 64
      */
     static MeasureUnit getMilliliter();
 
     /**
      * Returns by pointer, unit of volume: pinch.
      * Caller owns returned value and must free it.
      * Also see {@link #getPinch()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createPinch(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: pinch.
      * Also see {@link #createPinch()}.
      * @stable ICU 68
      */
     static MeasureUnit getPinch();
 
     /**
      * Returns by pointer, unit of volume: pint.
      * Caller owns returned value and must free it.
      * Also see {@link #getPint()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createPint(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: pint.
      * Also see {@link #createPint()}.
      * @stable ICU 64
      */
     static MeasureUnit getPint();
 
     /**
      * Returns by pointer, unit of volume: pint-metric.
      * Caller owns returned value and must free it.
      * Also see {@link #getPintMetric()}.
      * @param status ICU error code.
      * @stable ICU 56
      */
     static MeasureUnit *createPintMetric(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: pint-metric.
      * Also see {@link #createPintMetric()}.
      * @stable ICU 64
      */
     static MeasureUnit getPintMetric();
 
     /**
      * Returns by pointer, unit of volume: quart.
      * Caller owns returned value and must free it.
      * Also see {@link #getQuart()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createQuart(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: quart.
      * Also see {@link #createQuart()}.
      * @stable ICU 64
      */
     static MeasureUnit getQuart();
 
     /**
      * Returns by pointer, unit of volume: quart-imperial.
      * Caller owns returned value and must free it.
      * Also see {@link #getQuartImperial()}.
      * @param status ICU error code.
      * @stable ICU 68
      */
     static MeasureUnit *createQuartImperial(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: quart-imperial.
      * Also see {@link #createQuartImperial()}.
      * @stable ICU 68
      */
     static MeasureUnit getQuartImperial();
 
     /**
      * Returns by pointer, unit of volume: tablespoon.
      * Caller owns returned value and must free it.
      * Also see {@link #getTablespoon()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createTablespoon(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: tablespoon.
      * Also see {@link #createTablespoon()}.
      * @stable ICU 64
      */
     static MeasureUnit getTablespoon();
 
     /**
      * Returns by pointer, unit of volume: teaspoon.
      * Caller owns returned value and must free it.
      * Also see {@link #getTeaspoon()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createTeaspoon(UErrorCode &status);
 
     /**
      * Returns by value, unit of volume: teaspoon.
      * Also see {@link #createTeaspoon()}.
      * @stable ICU 64
      */
     static MeasureUnit getTeaspoon();
 
 // End generated createXXX methods
 
  protected:
 
 #ifndef U_HIDE_INTERNAL_API
     /**
      * For ICU use only.
      * @internal
      */
     void initTime(const char *timeId);
 
     /**
      * For ICU use only.
      * @internal
      */
     void initCurrency(StringPiece isoCurrency);
 
 #endif  /* U_HIDE_INTERNAL_API */
 
 private:
 
     // Used by new draft APIs in ICU 67. If non-null, fImpl is owned by the
     // MeasureUnit.
     MeasureUnitImpl* fImpl;
 
     // An index into a static string list in measunit.cpp. If set to -1, fImpl
     // is in use instead of fTypeId and fSubTypeId.
     int16_t fSubTypeId;
     // An index into a static string list in measunit.cpp. If set to -1, fImpl
     // is in use instead of fTypeId and fSubTypeId.
     int8_t fTypeId;
 
     MeasureUnit(int32_t typeId, int32_t subTypeId);
     MeasureUnit(MeasureUnitImpl&& impl);
     void setTo(int32_t typeId, int32_t subTypeId);
     static MeasureUnit *create(int typeId, int subTypeId, UErrorCode &status);
 
     /**
      * Sets output's typeId and subTypeId according to subType, if subType is a
      * valid/known identifier.
      *
      * @return Whether subType is known to ICU. If false, output was not
      * modified.
      */
     static bool findBySubType(StringPiece subType, MeasureUnit* output);
 
     /** Internal version of public API */
     LocalArray<MeasureUnit> splitToSingleUnitsImpl(int32_t& outCount, UErrorCode& status) const;
 
     friend class MeasureUnitImpl;
 
     // For access to findBySubType
     friend class number::impl::LongNameHandler;
 };
 
 // inline impl of @stable ICU 68 method
 inline std::pair<LocalArray<MeasureUnit>, int32_t>
 MeasureUnit::splitToSingleUnits(UErrorCode& status) const {
     int32_t length;
     auto array = splitToSingleUnitsImpl(length, status);
     return std::make_pair(std::move(array), length);
 }
 
 U_NAMESPACE_END
 
 #endif // !UNCONFIG_NO_FORMATTING
 
 #endif /* U_SHOW_CPLUSPLUS_API */
 
 #endif // __MEASUREUNIT_H__