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Diffstat (limited to 'intl/icu/source/i18n/unicode/numberrangeformatter.h')
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diff --git a/intl/icu/source/i18n/unicode/numberrangeformatter.h b/intl/icu/source/i18n/unicode/numberrangeformatter.h new file mode 100644 index 0000000000..c6749b33c7 --- /dev/null +++ b/intl/icu/source/i18n/unicode/numberrangeformatter.h @@ -0,0 +1,777 @@ +// © 2018 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html + +#ifndef __NUMBERRANGEFORMATTER_H__ +#define __NUMBERRANGEFORMATTER_H__ + +#include "unicode/utypes.h" + +#if U_SHOW_CPLUSPLUS_API + +#if !UCONFIG_NO_FORMATTING + +#include "unicode/appendable.h" +#include "unicode/fieldpos.h" +#include "unicode/formattedvalue.h" +#include "unicode/fpositer.h" +#include "unicode/numberformatter.h" +#include "unicode/unumberrangeformatter.h" + +#ifndef __wasi__ +#include <atomic> +#endif + +/** + * \file + * \brief C++ API: Library for localized formatting of number, currency, and unit ranges. + * + * The main entrypoint to the formatting of ranges of numbers, including currencies and other units of measurement. + * <p> + * Usage example: + * <p> + * <pre> + * NumberRangeFormatter::with() + * .identityFallback(UNUM_IDENTITY_FALLBACK_APPROXIMATELY_OR_SINGLE_VALUE) + * .numberFormatterFirst(NumberFormatter::with().adoptUnit(MeasureUnit::createMeter())) + * .numberFormatterSecond(NumberFormatter::with().adoptUnit(MeasureUnit::createKilometer())) + * .locale("en-GB") + * .formatFormattableRange(750, 1.2, status) + * .toString(status); + * // => "750 m - 1.2 km" + * </pre> + * <p> + * Like NumberFormatter, NumberRangeFormatter instances (i.e., LocalizedNumberRangeFormatter + * and UnlocalizedNumberRangeFormatter) are immutable and thread-safe. This API is based on the + * <em>fluent</em> design pattern popularized by libraries such as Google's Guava. + * + * @author Shane Carr + */ + + +U_NAMESPACE_BEGIN + +// Forward declarations: +class PluralRules; + +namespace number { // icu::number + +// Forward declarations: +class UnlocalizedNumberRangeFormatter; +class LocalizedNumberRangeFormatter; +class FormattedNumberRange; + +namespace impl { + +// Forward declarations: +struct RangeMacroProps; +class DecimalQuantity; +class UFormattedNumberRangeData; +class NumberRangeFormatterImpl; +struct UFormattedNumberRangeImpl; + +} // namespace impl + +/** + * \cond + * Export an explicit template instantiation. See datefmt.h + * (When building DLLs for Windows this is required.) + */ +#if U_PLATFORM == U_PF_WINDOWS && !defined(U_IN_DOXYGEN) && !defined(U_STATIC_IMPLEMENTATION) +} // namespace icu::number +U_NAMESPACE_END + +#ifndef __wasi__ +template struct U_I18N_API std::atomic< U_NAMESPACE_QUALIFIER number::impl::NumberRangeFormatterImpl*>; +#endif + +U_NAMESPACE_BEGIN +namespace number { // icu::number +#endif +/** \endcond */ + +// Other helper classes would go here, but there are none. + +namespace impl { // icu::number::impl + +// Do not enclose entire MacroProps with #ifndef U_HIDE_INTERNAL_API, needed for a protected field +/** @internal */ +struct U_I18N_API RangeMacroProps : public UMemory { + /** @internal */ + UnlocalizedNumberFormatter formatter1; // = NumberFormatter::with(); + + /** @internal */ + UnlocalizedNumberFormatter formatter2; // = NumberFormatter::with(); + + /** @internal */ + bool singleFormatter = true; + + /** @internal */ + UNumberRangeCollapse collapse = UNUM_RANGE_COLLAPSE_AUTO; + + /** @internal */ + UNumberRangeIdentityFallback identityFallback = UNUM_IDENTITY_FALLBACK_APPROXIMATELY; + + /** @internal */ + Locale locale; + + // NOTE: Uses default copy and move constructors. + + /** + * Check all members for errors. + * @internal + */ + bool copyErrorTo(UErrorCode &status) const { + return formatter1.copyErrorTo(status) || formatter2.copyErrorTo(status); + } +}; + +} // namespace impl + +/** + * An abstract base class for specifying settings related to number formatting. This class is implemented by + * {@link UnlocalizedNumberRangeFormatter} and {@link LocalizedNumberRangeFormatter}. This class is not intended for + * public subclassing. + */ +template<typename Derived> +class U_I18N_API NumberRangeFormatterSettings { + public: + /** + * Sets the NumberFormatter instance to use for the numbers in the range. The same formatter is applied to both + * sides of the range. + * <p> + * The NumberFormatter instances must not have a locale applied yet; the locale specified on the + * NumberRangeFormatter will be used. + * + * @param formatter + * The formatter to use for both numbers in the range. + * @return The fluent chain. + * @stable ICU 63 + */ + Derived numberFormatterBoth(const UnlocalizedNumberFormatter &formatter) const &; + + /** + * Overload of numberFormatterBoth() for use on an rvalue reference. + * + * @param formatter + * The formatter to use for both numbers in the range. + * @return The fluent chain. + * @see #numberFormatterBoth + * @stable ICU 63 + */ + Derived numberFormatterBoth(const UnlocalizedNumberFormatter &formatter) &&; + + /** + * Overload of numberFormatterBoth() for use on an rvalue reference. + * + * @param formatter + * The formatter to use for both numbers in the range. + * @return The fluent chain. + * @see #numberFormatterBoth + * @stable ICU 63 + */ + Derived numberFormatterBoth(UnlocalizedNumberFormatter &&formatter) const &; + + /** + * Overload of numberFormatterBoth() for use on an rvalue reference. + * + * @param formatter + * The formatter to use for both numbers in the range. + * @return The fluent chain. + * @see #numberFormatterBoth + * @stable ICU 63 + */ + Derived numberFormatterBoth(UnlocalizedNumberFormatter &&formatter) &&; + + /** + * Sets the NumberFormatter instance to use for the first number in the range. + * <p> + * The NumberFormatter instances must not have a locale applied yet; the locale specified on the + * NumberRangeFormatter will be used. + * + * @param formatterFirst + * The formatter to use for the first number in the range. + * @return The fluent chain. + * @stable ICU 63 + */ + Derived numberFormatterFirst(const UnlocalizedNumberFormatter &formatterFirst) const &; + + /** + * Overload of numberFormatterFirst() for use on an rvalue reference. + * + * @param formatterFirst + * The formatter to use for the first number in the range. + * @return The fluent chain. + * @see #numberFormatterFirst + * @stable ICU 63 + */ + Derived numberFormatterFirst(const UnlocalizedNumberFormatter &formatterFirst) &&; + + /** + * Overload of numberFormatterFirst() for use on an rvalue reference. + * + * @param formatterFirst + * The formatter to use for the first number in the range. + * @return The fluent chain. + * @see #numberFormatterFirst + * @stable ICU 63 + */ + Derived numberFormatterFirst(UnlocalizedNumberFormatter &&formatterFirst) const &; + + /** + * Overload of numberFormatterFirst() for use on an rvalue reference. + * + * @param formatterFirst + * The formatter to use for the first number in the range. + * @return The fluent chain. + * @see #numberFormatterFirst + * @stable ICU 63 + */ + Derived numberFormatterFirst(UnlocalizedNumberFormatter &&formatterFirst) &&; + + /** + * Sets the NumberFormatter instance to use for the second number in the range. + * <p> + * The NumberFormatter instances must not have a locale applied yet; the locale specified on the + * NumberRangeFormatter will be used. + * + * @param formatterSecond + * The formatter to use for the second number in the range. + * @return The fluent chain. + * @stable ICU 63 + */ + Derived numberFormatterSecond(const UnlocalizedNumberFormatter &formatterSecond) const &; + + /** + * Overload of numberFormatterSecond() for use on an rvalue reference. + * + * @param formatterSecond + * The formatter to use for the second number in the range. + * @return The fluent chain. + * @see #numberFormatterSecond + * @stable ICU 63 + */ + Derived numberFormatterSecond(const UnlocalizedNumberFormatter &formatterSecond) &&; + + /** + * Overload of numberFormatterSecond() for use on an rvalue reference. + * + * @param formatterSecond + * The formatter to use for the second number in the range. + * @return The fluent chain. + * @see #numberFormatterSecond + * @stable ICU 63 + */ + Derived numberFormatterSecond(UnlocalizedNumberFormatter &&formatterSecond) const &; + + /** + * Overload of numberFormatterSecond() for use on an rvalue reference. + * + * @param formatterSecond + * The formatter to use for the second number in the range. + * @return The fluent chain. + * @see #numberFormatterSecond + * @stable ICU 63 + */ + Derived numberFormatterSecond(UnlocalizedNumberFormatter &&formatterSecond) &&; + + /** + * Sets the aggressiveness of "collapsing" fields across the range separator. Possible values: + * <p> + * <ul> + * <li>ALL: "3-5K miles"</li> + * <li>UNIT: "3K - 5K miles"</li> + * <li>NONE: "3K miles - 5K miles"</li> + * <li>AUTO: usually UNIT or NONE, depending on the locale and formatter settings</li> + * </ul> + * <p> + * The default value is AUTO. + * + * @param collapse + * The collapsing strategy to use for this range. + * @return The fluent chain. + * @stable ICU 63 + */ + Derived collapse(UNumberRangeCollapse collapse) const &; + + /** + * Overload of collapse() for use on an rvalue reference. + * + * @param collapse + * The collapsing strategy to use for this range. + * @return The fluent chain. + * @see #collapse + * @stable ICU 63 + */ + Derived collapse(UNumberRangeCollapse collapse) &&; + + /** + * Sets the behavior when the two sides of the range are the same. This could happen if the same two numbers are + * passed to the formatFormattableRange function, or if different numbers are passed to the function but they + * become the same after rounding rules are applied. Possible values: + * <p> + * <ul> + * <li>SINGLE_VALUE: "5 miles"</li> + * <li>APPROXIMATELY_OR_SINGLE_VALUE: "~5 miles" or "5 miles", depending on whether the number was the same before + * rounding was applied</li> + * <li>APPROXIMATELY: "~5 miles"</li> + * <li>RANGE: "5-5 miles" (with collapse=UNIT)</li> + * </ul> + * <p> + * The default value is APPROXIMATELY. + * + * @param identityFallback + * The strategy to use when formatting two numbers that end up being the same. + * @return The fluent chain. + * @stable ICU 63 + */ + Derived identityFallback(UNumberRangeIdentityFallback identityFallback) const &; + + /** + * Overload of identityFallback() for use on an rvalue reference. + * + * @param identityFallback + * The strategy to use when formatting two numbers that end up being the same. + * @return The fluent chain. + * @see #identityFallback + * @stable ICU 63 + */ + Derived identityFallback(UNumberRangeIdentityFallback identityFallback) &&; + + /** + * Returns the current (Un)LocalizedNumberRangeFormatter as a LocalPointer + * wrapping a heap-allocated copy of the current object. + * + * This is equivalent to new-ing the move constructor with a value object + * as the argument. + * + * @return A wrapped (Un)LocalizedNumberRangeFormatter pointer, or a wrapped + * nullptr on failure. + * @stable ICU 64 + */ + LocalPointer<Derived> clone() const &; + + /** + * Overload of clone for use on an rvalue reference. + * + * @return A wrapped (Un)LocalizedNumberRangeFormatter pointer, or a wrapped + * nullptr on failure. + * @stable ICU 64 + */ + LocalPointer<Derived> clone() &&; + + /** + * Sets the UErrorCode if an error occurred in the fluent chain. + * Preserves older error codes in the outErrorCode. + * @return true if U_FAILURE(outErrorCode) + * @stable ICU 63 + */ + UBool copyErrorTo(UErrorCode &outErrorCode) const { + if (U_FAILURE(outErrorCode)) { + // Do not overwrite the older error code + return true; + } + fMacros.copyErrorTo(outErrorCode); + return U_FAILURE(outErrorCode); + } + + // NOTE: Uses default copy and move constructors. + + private: + impl::RangeMacroProps fMacros; + + // Don't construct me directly! Use (Un)LocalizedNumberFormatter. + NumberRangeFormatterSettings() = default; + + friend class LocalizedNumberRangeFormatter; + friend class UnlocalizedNumberRangeFormatter; +}; + +// Explicit instantiations in source/i18n/numrange_fluent.cpp. +// (MSVC treats imports/exports of explicit instantiations differently.) +#ifndef _MSC_VER +extern template class NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>; +extern template class NumberRangeFormatterSettings<LocalizedNumberRangeFormatter>; +#endif + +/** + * A NumberRangeFormatter that does not yet have a locale. In order to format, a locale must be specified. + * + * Instances of this class are immutable and thread-safe. + * + * @see NumberRangeFormatter + * @stable ICU 63 + */ +class U_I18N_API UnlocalizedNumberRangeFormatter + : public NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>, public UMemory { + + public: + /** + * Associate the given locale with the number range formatter. The locale is used for picking the + * appropriate symbols, formats, and other data for number display. + * + * @param locale + * The locale to use when loading data for number formatting. + * @return The fluent chain. + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter locale(const icu::Locale &locale) const &; + + /** + * Overload of locale() for use on an rvalue reference. + * + * @param locale + * The locale to use when loading data for number formatting. + * @return The fluent chain. + * @see #locale + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter locale(const icu::Locale &locale) &&; + + /** + * Default constructor: puts the formatter into a valid but undefined state. + * + * @stable ICU 63 + */ + UnlocalizedNumberRangeFormatter() = default; + + /** + * Returns a copy of this UnlocalizedNumberRangeFormatter. + * @stable ICU 63 + */ + UnlocalizedNumberRangeFormatter(const UnlocalizedNumberRangeFormatter &other); + + /** + * Move constructor: + * The source UnlocalizedNumberRangeFormatter will be left in a valid but undefined state. + * @stable ICU 63 + */ + UnlocalizedNumberRangeFormatter(UnlocalizedNumberRangeFormatter&& src) noexcept; + + /** + * Copy assignment operator. + * @stable ICU 63 + */ + UnlocalizedNumberRangeFormatter& operator=(const UnlocalizedNumberRangeFormatter& other); + + /** + * Move assignment operator: + * The source UnlocalizedNumberRangeFormatter will be left in a valid but undefined state. + * @stable ICU 63 + */ + UnlocalizedNumberRangeFormatter& operator=(UnlocalizedNumberRangeFormatter&& src) noexcept; + + private: + explicit UnlocalizedNumberRangeFormatter( + const NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>& other); + + explicit UnlocalizedNumberRangeFormatter( + NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>&& src) noexcept; + + // To give the fluent setters access to this class's constructor: + friend class NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>; + + // To give NumberRangeFormatter::with() access to this class's constructor: + friend class NumberRangeFormatter; +}; + +/** + * A NumberRangeFormatter that has a locale associated with it; this means .formatRange() methods are available. + * + * Instances of this class are immutable and thread-safe. + * + * @see NumberFormatter + * @stable ICU 63 + */ +class U_I18N_API LocalizedNumberRangeFormatter + : public NumberRangeFormatterSettings<LocalizedNumberRangeFormatter>, public UMemory { + public: + /** + * Format the given Formattables to a string using the settings specified in the NumberRangeFormatter fluent setting + * chain. + * + * @param first + * The first number in the range, usually to the left in LTR locales. + * @param second + * The second number in the range, usually to the right in LTR locales. + * @param status + * Set if an error occurs while formatting. + * @return A FormattedNumberRange object; call .toString() to get the string. + * @stable ICU 63 + */ + FormattedNumberRange formatFormattableRange( + const Formattable& first, const Formattable& second, UErrorCode& status) const; + + /** + * Default constructor: puts the formatter into a valid but undefined state. + * + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter() = default; + + /** + * Returns a copy of this LocalizedNumberRangeFormatter. + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter(const LocalizedNumberRangeFormatter &other); + + /** + * Move constructor: + * The source LocalizedNumberRangeFormatter will be left in a valid but undefined state. + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter(LocalizedNumberRangeFormatter&& src) noexcept; + + /** + * Copy assignment operator. + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter& operator=(const LocalizedNumberRangeFormatter& other); + + /** + * Move assignment operator: + * The source LocalizedNumberRangeFormatter will be left in a valid but undefined state. + * @stable ICU 63 + */ + LocalizedNumberRangeFormatter& operator=(LocalizedNumberRangeFormatter&& src) noexcept; + +#ifndef U_HIDE_INTERNAL_API + + /** + * @param results + * The results object. This method will mutate it to save the results. + * @param equalBeforeRounding + * Whether the number was equal before copying it into a DecimalQuantity. + * Used for determining the identity fallback behavior. + * @param status + * Set if an error occurs while formatting. + * @internal + */ + void formatImpl(impl::UFormattedNumberRangeData& results, bool equalBeforeRounding, + UErrorCode& status) const; + +#endif /* U_HIDE_INTERNAL_API */ + + /** + * Destruct this LocalizedNumberRangeFormatter, cleaning up any memory it might own. + * @stable ICU 63 + */ + ~LocalizedNumberRangeFormatter(); + + private: +#ifndef __wasi__ + std::atomic<impl::NumberRangeFormatterImpl*> fAtomicFormatter = {}; +#else + impl::NumberRangeFormatterImpl* fAtomicFormatter = nullptr; +#endif + + const impl::NumberRangeFormatterImpl* getFormatter(UErrorCode& stauts) const; + + explicit LocalizedNumberRangeFormatter( + const NumberRangeFormatterSettings<LocalizedNumberRangeFormatter>& other); + + explicit LocalizedNumberRangeFormatter( + NumberRangeFormatterSettings<LocalizedNumberRangeFormatter>&& src) noexcept; + + LocalizedNumberRangeFormatter(const impl::RangeMacroProps ¯os, const Locale &locale); + + LocalizedNumberRangeFormatter(impl::RangeMacroProps &¯os, const Locale &locale); + + // To give the fluent setters access to this class's constructor: + friend class NumberRangeFormatterSettings<UnlocalizedNumberRangeFormatter>; + friend class NumberRangeFormatterSettings<LocalizedNumberRangeFormatter>; + + // To give UnlocalizedNumberRangeFormatter::locale() access to this class's constructor: + friend class UnlocalizedNumberRangeFormatter; +}; + +/** + * The result of a number range formatting operation. This class allows the result to be exported in several data types, + * including a UnicodeString and a FieldPositionIterator. + * + * Instances of this class are immutable and thread-safe. + * + * @stable ICU 63 + */ +class U_I18N_API FormattedNumberRange : public UMemory, public FormattedValue { + public: + // Copybrief: this method is older than the parent method + /** + * @copybrief FormattedValue::toString() + * + * For more information, see FormattedValue::toString() + * + * @stable ICU 63 + */ + UnicodeString toString(UErrorCode& status) const override; + + // Copydoc: this method is new in ICU 64 + /** @copydoc FormattedValue::toTempString() */ + UnicodeString toTempString(UErrorCode& status) const override; + + // Copybrief: this method is older than the parent method + /** + * @copybrief FormattedValue::appendTo() + * + * For more information, see FormattedValue::appendTo() + * + * @stable ICU 63 + */ + Appendable &appendTo(Appendable &appendable, UErrorCode& status) const override; + + // Copydoc: this method is new in ICU 64 + /** @copydoc FormattedValue::nextPosition() */ + UBool nextPosition(ConstrainedFieldPosition& cfpos, UErrorCode& status) const override; + + /** + * Extracts the formatted range as a pair of decimal numbers. This endpoint + * is useful for obtaining the exact number being printed after scaling + * and rounding have been applied by the number range formatting pipeline. + * + * The syntax of the unformatted numbers is a "numeric string" + * as defined in the Decimal Arithmetic Specification, available at + * http://speleotrove.com/decimal + * + * Example C++17 call site: + * + * auto [ first, second ] = range.getDecimalNumbers<std::string>(status); + * + * @tparam StringClass A string class compatible with StringByteSink; + * for example, std::string. + * @param status Set if an error occurs. + * @return A pair of StringClasses containing the numeric strings. + * @stable ICU 68 + */ + template<typename StringClass> + inline std::pair<StringClass, StringClass> getDecimalNumbers(UErrorCode& status) const; + + /** + * Returns whether the pair of numbers was successfully formatted as a range or whether an identity fallback was + * used. For example, if the first and second number were the same either before or after rounding occurred, an + * identity fallback was used. + * + * @return An indication the resulting identity situation in the formatted number range. + * @stable ICU 63 + * @see UNumberRangeIdentityFallback + */ + UNumberRangeIdentityResult getIdentityResult(UErrorCode& status) const; + + /** + * Default constructor; makes an empty FormattedNumberRange. + * @stable ICU 70 + */ + FormattedNumberRange() + : fData(nullptr), fErrorCode(U_INVALID_STATE_ERROR) {} + + /** + * Copying not supported; use move constructor instead. + */ + FormattedNumberRange(const FormattedNumberRange&) = delete; + + /** + * Copying not supported; use move assignment instead. + */ + FormattedNumberRange& operator=(const FormattedNumberRange&) = delete; + + /** + * Move constructor: + * Leaves the source FormattedNumberRange in an undefined state. + * @stable ICU 63 + */ + FormattedNumberRange(FormattedNumberRange&& src) noexcept; + + /** + * Move assignment: + * Leaves the source FormattedNumberRange in an undefined state. + * @stable ICU 63 + */ + FormattedNumberRange& operator=(FormattedNumberRange&& src) noexcept; + + /** + * Destruct an instance of FormattedNumberRange, cleaning up any memory it might own. + * @stable ICU 63 + */ + ~FormattedNumberRange(); + + private: + // Can't use LocalPointer because UFormattedNumberRangeData is forward-declared + const impl::UFormattedNumberRangeData *fData; + + // Error code for the terminal methods + UErrorCode fErrorCode; + + /** + * Internal constructor from data type. Adopts the data pointer. + */ + explicit FormattedNumberRange(impl::UFormattedNumberRangeData *results) + : fData(results), fErrorCode(U_ZERO_ERROR) {} + + explicit FormattedNumberRange(UErrorCode errorCode) + : fData(nullptr), fErrorCode(errorCode) {} + + void getDecimalNumbers(ByteSink& sink1, ByteSink& sink2, UErrorCode& status) const; + + const impl::UFormattedNumberRangeData* getData(UErrorCode& status) const; + + // To allow PluralRules to access the underlying data + friend class ::icu::PluralRules; + + // To give LocalizedNumberRangeFormatter format methods access to this class's constructor: + friend class LocalizedNumberRangeFormatter; + + // To give C API access to internals + friend struct impl::UFormattedNumberRangeImpl; +}; + +// inline impl of @stable ICU 68 method +template<typename StringClass> +std::pair<StringClass, StringClass> FormattedNumberRange::getDecimalNumbers(UErrorCode& status) const { + StringClass str1; + StringClass str2; + StringByteSink<StringClass> sink1(&str1); + StringByteSink<StringClass> sink2(&str2); + getDecimalNumbers(sink1, sink2, status); + return std::make_pair(str1, str2); +} + +/** + * See the main description in numberrangeformatter.h for documentation and examples. + * + * @stable ICU 63 + */ +class U_I18N_API NumberRangeFormatter final { + public: + /** + * Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is not currently + * known at the call site. + * + * @return An {@link UnlocalizedNumberRangeFormatter}, to be used for chaining. + * @stable ICU 63 + */ + static UnlocalizedNumberRangeFormatter with(); + + /** + * Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is known at the call + * site. + * + * @param locale + * The locale from which to load formats and symbols for number range formatting. + * @return A {@link LocalizedNumberRangeFormatter}, to be used for chaining. + * @stable ICU 63 + */ + static LocalizedNumberRangeFormatter withLocale(const Locale &locale); + + /** + * Use factory methods instead of the constructor to create a NumberFormatter. + */ + NumberRangeFormatter() = delete; +}; + +} // namespace number +U_NAMESPACE_END + +#endif /* #if !UCONFIG_NO_FORMATTING */ + +#endif /* U_SHOW_CPLUSPLUS_API */ + +#endif // __NUMBERRANGEFORMATTER_H__ + |