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227 lines
6.3 KiB
C++
227 lines
6.3 KiB
C++
// © 2023 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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#ifndef ULOCALE_H
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#define ULOCALE_H
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#include "unicode/localpointer.h"
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#include "unicode/uenum.h"
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#include "unicode/utypes.h"
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/**
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* \file
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* \brief C API: Locale ID functionality similar to C++ class Locale
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*/
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/**
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* Opaque C service object type for the locale API
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* @stable ICU 74
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*/
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struct ULocale;
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/**
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* C typedef for struct ULocale.
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* @stable ICU 74
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*/
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typedef struct ULocale ULocale;
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/**
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* Constructs an ULocale from the locale ID.
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* The created ULocale should be destroyed by calling
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* ulocale_close();
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* @param localeID the locale, a const char * pointer (need not be terminated when
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* the length is non-negative)
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* @param length the length of the locale; if negative, then the locale need to be
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* null terminated.
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* @param err the error code
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* @return the locale.
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*
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* @stable ICU 74
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*/
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U_CAPI ULocale* U_EXPORT2
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ulocale_openForLocaleID(const char* localeID, int32_t length, UErrorCode* err);
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/**
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* Constructs an ULocale from the provided IETF BCP 47 language tag.
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* The created ULocale should be destroyed by calling
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* ulocale_close();
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* @param tag the language tag, defined as IETF BCP 47 language tag, const
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* char* pointer (need not be terminated when the length is non-negative)
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* @param length the length of the tag; if negative, then the tag need to be
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* null terminated.
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* @param err the error code
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* @return the locale.
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*
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* @stable ICU 74
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*/
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U_CAPI ULocale* U_EXPORT2
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ulocale_openForLanguageTag(const char* tag, int32_t length, UErrorCode* err);
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/**
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* Close the locale and destroy it's internal states.
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*
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* @param locale the locale
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* @stable ICU 74
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*/
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U_CAPI void U_EXPORT2
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ulocale_close(ULocale* locale);
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/**
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* Returns the locale's ISO-639 language code.
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*
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* @param locale the locale
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* @return the language code of the locale.
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getLanguage(const ULocale* locale);
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/**
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* Returns the locale's ISO-15924 abbreviation script code.
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*
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* @param locale the locale
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* @return A pointer to the script.
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getScript(const ULocale* locale);
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/**
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* Returns the locale's ISO-3166 region code.
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*
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* @param locale the locale
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* @return A pointer to the region.
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getRegion(const ULocale* locale);
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/**
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* Returns the locale's variant code.
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*
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* @param locale the locale
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* @return A pointer to the variant.
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getVariant(const ULocale* locale);
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/**
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* Returns the programmatic name of the entire locale, with the language,
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* country and variant separated by underbars. If a field is missing, up
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* to two leading underbars will occur. Example: "en", "de_DE", "en_US_WIN",
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* "de__POSIX", "fr__MAC", "__MAC", "_MT", "_FR_EURO"
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*
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* @param locale the locale
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* @return A pointer to "name".
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getLocaleID(const ULocale* locale);
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/**
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* Returns the programmatic name of the entire locale as ulocale_getLocaleID()
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* would return, but without keywords.
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*
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* @param locale the locale
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* @return A pointer to "base name".
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* @stable ICU 74
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*/
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U_CAPI const char* U_EXPORT2
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ulocale_getBaseName(const ULocale* locale);
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/**
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* Gets the bogus state. Locale object can be bogus if it doesn't exist
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*
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* @param locale the locale
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* @return false if it is a real locale, true if it is a bogus locale
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* @stable ICU 74
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*/
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U_CAPI bool U_EXPORT2
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ulocale_isBogus(const ULocale* locale);
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/**
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* Gets the list of keywords for the specified locale.
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*
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* @param locale the locale
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* @param err the error code
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* @return pointer to UEnumeration, or nullptr if there are no keywords.
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* Client must call uenum_close() to dispose the returned value.
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* @stable ICU 74
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*/
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U_CAPI UEnumeration* U_EXPORT2
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ulocale_getKeywords(const ULocale* locale, UErrorCode *err);
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/**
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* Gets the list of unicode keywords for the specified locale.
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*
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* @param locale the locale
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* @param err the error code
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* @return pointer to UEnumeration, or nullptr if there are no keywords.
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* Client must call uenum_close() to dispose the returned value.
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* @stable ICU 74
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*/
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U_CAPI UEnumeration* U_EXPORT2
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ulocale_getUnicodeKeywords(const ULocale* locale, UErrorCode *err);
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/**
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* Gets the value for a keyword.
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*
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* This uses legacy keyword=value pairs, like "collation=phonebook".
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*
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* @param locale the locale
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* @param keyword the keyword, a const char * pointer (need not be
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* terminated when the length is non-negative)
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* @param keywordLength the length of the keyword; if negative, then the
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* keyword need to be null terminated.
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* @param valueBuffer The buffer to receive the value.
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* @param valueBufferCapacity The capacity of receiving valueBuffer.
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* @param err the error code
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* @stable ICU 74
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*/
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U_CAPI int32_t U_EXPORT2
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ulocale_getKeywordValue(
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const ULocale* locale, const char* keyword, int32_t keywordLength,
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char* valueBuffer, int32_t valueBufferCapacity, UErrorCode *err);
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/**
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* Gets the Unicode value for a Unicode keyword.
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*
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* This uses Unicode key-value pairs, like "co-phonebk".
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*
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* @param locale the locale
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* @param keyword the Unicode keyword, a const char * pointer (need not be
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* terminated when the length is non-negative)
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* @param keywordLength the length of the Unicode keyword; if negative,
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* then the keyword need to be null terminated.
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* @param valueBuffer The buffer to receive the Unicode value.
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* @param valueBufferCapacity The capacity of receiving valueBuffer.
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* @param err the error code
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* @stable ICU 74
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*/
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U_CAPI int32_t U_EXPORT2
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ulocale_getUnicodeKeywordValue(
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const ULocale* locale, const char* keyword, int32_t keywordLength,
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char* valueBuffer, int32_t valueBufferCapacity, UErrorCode *err);
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#if U_SHOW_CPLUSPLUS_API
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U_NAMESPACE_BEGIN
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/**
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* \class LocalULocalePointer
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* "Smart pointer" class, closes a ULocale via ulocale_close().
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* For most methods see the LocalPointerBase base class.
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*
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* @see LocalPointerBase
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* @see LocalPointer
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* @stable ICU 74
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*/
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U_DEFINE_LOCAL_OPEN_POINTER(LocalULocalePointer, ULocale, ulocale_close);
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U_NAMESPACE_END
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#endif /* U_SHOW_CPLUSPLUS_API */
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#endif /*_ULOCALE */
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