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Direktori : /opt/alt/alt-nodejs18/root/usr/include/unicode/ |
Current File : //opt/alt/alt-nodejs18/root/usr/include/unicode/measure.h |
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ********************************************************************** * Copyright (c) 2004-2015, International Business Machines * Corporation and others. All Rights Reserved. ********************************************************************** * Author: Alan Liu * Created: April 26, 2004 * Since: ICU 3.0 ********************************************************************** */ #ifndef __MEASURE_H__ #define __MEASURE_H__ #include "unicode/utypes.h" #if U_SHOW_CPLUSPLUS_API /** * \file * \brief C++ API: MeasureUnit object. */ #if !UCONFIG_NO_FORMATTING #include "unicode/fmtable.h" U_NAMESPACE_BEGIN class MeasureUnit; /** * An amount of a specified unit, consisting of a number and a Unit. * For example, a length measure consists of a number and a length * unit, such as feet or meters. * * <p>Measure objects are formatted by MeasureFormat. * * <p>Measure objects are immutable. * * @author Alan Liu * @stable ICU 3.0 */ class U_I18N_API Measure: public UObject { public: /** * Construct an object with the given numeric amount and the given * unit. After this call, the caller must not delete the given * unit object. * @param number a numeric object; amount.isNumeric() must be true * @param adoptedUnit the unit object, which must not be NULL * @param ec input-output error code. If the amount or the unit * is invalid, then this will be set to a failing value. * @stable ICU 3.0 */ Measure(const Formattable& number, MeasureUnit* adoptedUnit, UErrorCode& ec); /** * Copy constructor * @stable ICU 3.0 */ Measure(const Measure& other); /** * Assignment operator * @stable ICU 3.0 */ Measure& operator=(const Measure& other); /** * Return a polymorphic clone of this object. The result will * have the same class as returned by getDynamicClassID(). * @stable ICU 3.0 */ virtual Measure* clone() const; /** * Destructor * @stable ICU 3.0 */ virtual ~Measure(); /** * Equality operator. Return true if this object is equal * to the given object. * @stable ICU 3.0 */ bool operator==(const UObject& other) const; /** * Return a reference to the numeric value of this object. The * numeric value may be of any numeric type supported by * Formattable. * @stable ICU 3.0 */ inline const Formattable& getNumber() const; /** * Return a reference to the unit of this object. * @stable ICU 3.0 */ inline const MeasureUnit& getUnit() const; /** * 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() == * . erived::getStaticClassID()) ... * </pre> * @return The class ID for all objects of this class. * @stable ICU 53 */ static UClassID U_EXPORT2 getStaticClassID(void); /** * 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(void) const override; protected: /** * Default constructor. * @stable ICU 3.0 */ Measure(); private: /** * The numeric value of this object, e.g. 2.54 or 100. */ Formattable number; /** * The unit of this object, e.g., "millimeter" or "JPY". This is * owned by this object. */ MeasureUnit* unit; }; inline const Formattable& Measure::getNumber() const { return number; } inline const MeasureUnit& Measure::getUnit() const { return *unit; } U_NAMESPACE_END #endif // !UCONFIG_NO_FORMATTING #endif /* U_SHOW_CPLUSPLUS_API */ #endif // __MEASURE_H__