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nounit.h (2294B)

      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 U_SHOW_CPLUSPLUS_API
     16 
     17 #if !UCONFIG_NO_FORMATTING
     18 
     19 #include "unicode/measunit.h"
     20 
     21 /**
     22 * \file
     23 * \brief C++ API: units for percent and permille
     24 */
     25 
     26 U_NAMESPACE_BEGIN
     27 
     28 /**
     29 * Dimensionless unit for percent and permille.
     30 * Prior to ICU 68, this namespace was a class with the same name.
     31 * @see NumberFormatter
     32 * @stable ICU 68
     33 */
     34 namespace NoUnit {
     35    /**
     36     * Returns an instance for the base unit (dimensionless and no scaling).
     37     *
     38     * Prior to ICU 68, this function returned a NoUnit by value.
     39     *
     40     * Since ICU 68, this function returns the same value as the default MeasureUnit constructor.
     41     *
     42     * @return               a MeasureUnit instance
     43     * @stable ICU 68
     44     */
     45    static inline MeasureUnit U_EXPORT2 base() {
     46        return {};
     47    }
     48 
     49    /**
     50     * Returns an instance for percent, or 1/100 of a base unit.
     51     *
     52     * Prior to ICU 68, this function returned a NoUnit by value.
     53     *
     54     * Since ICU 68, this function returns the same value as MeasureUnit::getPercent().
     55     *
     56     * @return               a MeasureUnit instance
     57     * @stable ICU 68
     58     */
     59    static inline MeasureUnit U_EXPORT2 percent() {
     60        return MeasureUnit::getPercent();
     61    }
     62 
     63    /**
     64     * Returns an instance for permille, or 1/1000 of a base unit.
     65     *
     66     * Prior to ICU 68, this function returned a NoUnit by value.
     67     *
     68     * Since ICU 68, this function returns the same value as MeasureUnit::getPermille().
     69     *
     70     * @return               a MeasureUnit instance
     71     * @stable ICU 68
     72     */
     73    static inline MeasureUnit U_EXPORT2 permille() {
     74        return MeasureUnit::getPermille();
     75    }
     76 }
     77 
     78 U_NAMESPACE_END
     79 
     80 #endif /* #if !UCONFIG_NO_FORMATTING */
     81 
     82 #endif /* U_SHOW_CPLUSPLUS_API */
     83 
     84 #endif // __NOUNIT_H__
     85 //eof
     86 //