DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (b6057e17f856)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
/*
**********************************************************************
* Copyright (c) 2004-2006, 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"

/**
 * \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.  This is an abstract class.
 * Subclasses specify a concrete Unit type.
 *
 * <p>Measure objects are parsed and formatted by subclasses of
 * MeasureFormat.
 *
 * <p>Measure objects are immutable.
 *
 * <p>This is an abstract class.
 *
 * @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 UObject* clone() const = 0;

    /**
     * Destructor
     * @stable ICU 3.0
     */
    virtual ~Measure();
    
    /**
     * Equality operator.  Return true if this object is equal
     * to the given object.
     * @stable ICU 3.0
     */
    UBool 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;

 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 // __MEASURE_H__