icuSources/i18n/unicode/nounit.h

   1 // © 2017 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4  *******************************************************************************
   5  * Copyright (C) 2009-2017, International Business Machines Corporation,       *
   6  * Google, and others. All Rights Reserved.                                    *
   7  *******************************************************************************
   8  */
   9
  10 #ifndef __NOUNIT_H__
  11 #define __NOUNIT_H__
  12
  13 #include "unicode/utypes.h"
  14
  15 #if !UCONFIG_NO_FORMATTING
  16
  17 #include "unicode/measunit.h"
  18
  19 /**
  20  * \file
  21  * \brief C++ API: units for percent and permille
  22  */
  23
  24 U_NAMESPACE_BEGIN
  25
  26 #ifndef U_HIDE_DRAFT_API
  27 /**
  28  * Dimensionless unit for percent and permille.
  29  * @see NumberFormatter
  30  * @draft ICU 60
  31  */
  32 class U_I18N_API NoUnit: public MeasureUnit {
  33 public:
  34     /**
  35      * Returns an instance for the base unit (dimensionless and no scaling).
  36      *
  37      * @return               a NoUnit instance
  38      * @draft ICU 60
  39      */
  40     static NoUnit U_EXPORT2 base();
  41
  42     /**
  43      * Returns an instance for percent, or 1/100 of a base unit.
  44      *
  45      * @return               a NoUnit instance
  46      * @draft ICU 60
  47      */
  48     static NoUnit U_EXPORT2 percent();
  49
  50     /**
  51      * Returns an instance for permille, or 1/1000 of a base unit.
  52      *
  53      * @return               a NoUnit instance
  54      * @draft ICU 60
  55      */
  56     static NoUnit U_EXPORT2 permille();
  57
  58     /**
  59      * Copy operator.
  60      * @draft ICU 60
  61      */
  62     NoUnit(const NoUnit& other);
  63
  64     /**
  65      * Destructor.
  66      * @draft ICU 60
  67      */
  68     virtual ~NoUnit();
  69
  70     /**
  71      * Return a polymorphic clone of this object.  The result will
  72      * have the same class as returned by getDynamicClassID().
  73      * @draft ICU 60
  74      */
  75     virtual UObject* clone() const;
  76
  77     /**
  78      * Returns a unique class ID for this object POLYMORPHICALLY.
  79      * This method implements a simple form of RTTI used by ICU.
  80      * @return The class ID for this object. All objects of a given
  81      * class have the same class ID.  Objects of other classes have
  82      * different class IDs.
  83      * @draft ICU 60
  84      */
  85     virtual UClassID getDynamicClassID() const;
  86
  87     /**
  88      * Returns the class ID for this class. This is used to compare to
  89      * the return value of getDynamicClassID().
  90      * @return The class ID for all objects of this class.
  91      * @draft ICU 60
  92      */
  93     static UClassID U_EXPORT2 getStaticClassID();
  94
  95 private:
  96     /**
  97      * Constructor
  98      * @internal (private)
  99      */
 100     NoUnit(const char* subtype);
 101
 102 };
 103 #endif  /* U_HIDE_DRAFT_API */
 104
 105 U_NAMESPACE_END
 106
 107 #endif /* #if !UCONFIG_NO_FORMATTING */
 108
 109 #endif // __NOUNIT_H__
 110 //eof
 111 //