1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 * Copyright (c) 2004-2014, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 **********************************************************************
8 * Author: Alan Liu
9 * Created: April 26, 2004
10 * Since: ICU 3.0
11 **********************************************************************
12 */
13 #ifndef __CURRENCYUNIT_H__
14 #define __CURRENCYUNIT_H__
15
16 #include "unicode/utypes.h"
17
18 #if U_SHOW_CPLUSPLUS_API
19
20 #if !UCONFIG_NO_FORMATTING
21
22 #include "unicode/measunit.h"
23
24 /**
25 * \file
26 * \brief C++ API: Currency Unit Information.
27 */
28
29 U_NAMESPACE_BEGIN
30
31 /**
32 * A unit of currency, such as USD (U.S. dollars) or JPY (Japanese
33 * yen). This class is a thin wrapper over a char16_t string that
34 * subclasses MeasureUnit, for use with Measure and MeasureFormat.
35 *
36 * @author Alan Liu
37 * @stable ICU 3.0
38 */
39 class U_I18N_API CurrencyUnit: public MeasureUnit {
40 public:
41 /**
42 * Default constructor. Initializes currency code to "XXX" (no currency).
43 * @stable ICU 60
44 */
45 CurrencyUnit();
46
47 /**
48 * Construct an object with the given ISO currency code.
49 *
50 * @param isoCode the 3-letter ISO 4217 currency code; must have
51 * length 3 and need not be NUL-terminated. If NULL, the currency
52 * is initialized to the unknown currency XXX.
53 * @param ec input-output error code. If the isoCode is invalid,
54 * then this will be set to a failing value.
55 * @stable ICU 3.0
56 */
57 CurrencyUnit(ConstChar16Ptr isoCode, UErrorCode &ec);
58
59 #ifndef U_HIDE_DRAFT_API
60 /**
61 * Construct an object with the given ISO currency code.
62 *
63 * @param isoCode the 3-letter ISO 4217 currency code; must have
64 * length 3. If invalid, the currency is initialized to XXX.
65 * @param ec input-output error code. If the isoCode is invalid,
66 * then this will be set to a failing value.
67 * @draft ICU 64
68 */
69 CurrencyUnit(StringPiece isoCode, UErrorCode &ec);
70 #endif /* U_HIDE_DRAFT_API */
71
72 /**
73 * Copy constructor
74 * @stable ICU 3.0
75 */
76 CurrencyUnit(const CurrencyUnit& other);
77
78 /**
79 * Copy constructor from MeasureUnit. This constructor allows you to
80 * restore a CurrencyUnit that was sliced to MeasureUnit.
81 *
82 * @param measureUnit The MeasureUnit to copy from.
83 * @param ec Set to a failing value if the MeasureUnit is not a currency.
84 * @stable ICU 60
85 */
86 CurrencyUnit(const MeasureUnit& measureUnit, UErrorCode &ec);
87
88 /**
89 * Assignment operator
90 * @stable ICU 3.0
91 */
92 CurrencyUnit& operator=(const CurrencyUnit& other);
93
94 /**
95 * Return a polymorphic clone of this object. The result will
96 * have the same class as returned by getDynamicClassID().
97 * @stable ICU 3.0
98 */
99 virtual CurrencyUnit* clone() const;
100
101 /**
102 * Destructor
103 * @stable ICU 3.0
104 */
105 virtual ~CurrencyUnit();
106
107 /**
108 * Returns a unique class ID for this object POLYMORPHICALLY.
109 * This method implements a simple form of RTTI used by ICU.
110 * @return The class ID for this object. All objects of a given
111 * class have the same class ID. Objects of other classes have
112 * different class IDs.
113 * @stable ICU 3.0
114 */
115 virtual UClassID getDynamicClassID() const;
116
117 /**
118 * Returns the class ID for this class. This is used to compare to
119 * the return value of getDynamicClassID().
120 * @return The class ID for all objects of this class.
121 * @stable ICU 3.0
122 */
123 static UClassID U_EXPORT2 getStaticClassID();
124
125 /**
126 * Return the ISO currency code of this object.
127 * @stable ICU 3.0
128 */
129 inline const char16_t* getISOCurrency() const;
130
131 private:
132 /**
133 * The ISO 4217 code of this object.
134 */
135 char16_t isoCode[4];
136 };
137
getISOCurrency()138 inline const char16_t* CurrencyUnit::getISOCurrency() const {
139 return isoCode;
140 }
141
142 U_NAMESPACE_END
143
144 #endif // !UCONFIG_NO_FORMATTING
145
146 #endif /* U_SHOW_CPLUSPLUS_API */
147
148 #endif // __CURRENCYUNIT_H__
149