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Showing content from https://unicode-org.github.io/icu-docs/apidoc/released/icu4c/namespaceicu.html below:

ICU 77.1: icu Namespace Reference

File coll.h. More...

  NoUnit   Dimensionless unit for percent and permille.
  class   Appendable   Base class for objects to which Unicode characters and strings can be appended. More...
  class   UnicodeStringAppendable   An Appendable implementation which writes to a UnicodeString. More...
  class   BreakIterator   The BreakIterator class implements methods for finding the location of boundaries in text. More...
  class   ByteSink   A ByteSink can be filled with bytes. More...
  class   CheckedArrayByteSink   Implementation of ByteSink that writes to a flat byte array, with bounds-checking: This sink will not write more than capacity bytes to outbuf. More...
  class   StringByteSink   Implementation of ByteSink that writes to a "string". More...
  class   BytesTrie   Light-weight, non-const reader class for a BytesTrie. More...
  class   BytesTrieBuilder   Builder class for BytesTrie. More...
  class   CanonicalIterator   This class allows one to iterate through all the strings that are canonically equivalent to a given string. More...
  class   CaseMap   Low-level C++ case mapping functions. More...
  class   Char16Ptr   char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types. More...
  class   ConstChar16Ptr   const char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types. More...
  class   ForwardCharacterIterator   Abstract class that defines an API for forward-only iteration on text objects. More...
  class   CharacterIterator   Abstract class that defines an API for iteration on text objects. More...
  class   DateInterval   This class represents a date interval. More...
  class   Edits   Records lengths of string edits but not replacement text. More...
  class   ErrorCode   Wrapper class for UErrorCode, with conversion operators for direct use in ICU C and C++ APIs. More...
  class   FilteredBreakIteratorBuilder   The BreakIteratorFilter is used to modify the behavior of a BreakIterator by constructing a new BreakIterator which suppresses certain segment boundaries. More...
  class   IDNA   Abstract base class for IDNA processing. More...
  class   IDNAInfo   Output container for IDNA processing errors. More...
  class   LocaleBuilder   LocaleBuilder is used to build instances of Locale from values configured by the setters. More...
  class   LocaleMatcher   Immutable class that picks the best match between a user's desired locales and an application's supported locales. More...
  class   LocalPointerBase   "Smart pointer" base class; do not use directly: use LocalPointer etc. More...
  class   LocalPointer   "Smart pointer" class, deletes objects via the standard C++ delete operator. More...
  class   LocalArray   "Smart pointer" class, deletes objects via the C++ array delete[] operator. More...
  class   LocaleDisplayNames   Returns display names of Locales and components of Locales. More...
  class   Locale   A Locale object represents a specific geographical, political, or cultural region. More...
  class   MessagePattern   Parses and represents ICU MessageFormat patterns. More...
  class   Normalizer2   Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables. More...
  class   FilteredNormalizer2   Normalization filtered by a UnicodeSet. More...
  class   Normalizer   Old Unicode normalization API. More...
  class   ParsePosition   ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing. More...
  class   ExternalBreakEngine   The ExternalBreakEngine class define an abstract interface for the host environment to provide a low level facility to break text for unicode text in script that the text boundary cannot be handled by upper level rule based logic, for example, for Chinese and Japanese word breaking, Thai, Khmer, Burmese, Lao and other Southeast Asian scripts. More...
  class   RuleBasedBreakIterator   A subclass of BreakIterator whose behavior is specified using a list of rules. More...
  class   Replaceable   Replaceable is an abstract base class representing a string of characters that supports the replacement of a range of itself with a new string of characters. More...
  class   ResourceBundle   A class representing a collection of resource information pertaining to a given locale. More...
  class   StringCharacterIterator   A concrete subclass of CharacterIterator that iterates over the characters (code units or code points) in a UnicodeString. More...
  class   SimpleFormatter   Formats simple patterns like "{1} was born in {0}". More...
  class   StringEnumeration   Base class for 'pure' C++ implementations of uenum api. More...
  class   StringPiece   A string-like object that points to a sized piece of memory. More...
  class   SymbolTable   An interface that defines both lookup protocol and parsing of symbolic names. More...
  class   UCharsTrie   Light-weight, non-const reader class for a UCharsTrie. More...
  class   UCharsTrieBuilder   Builder class for UCharsTrie. More...
  class   UCharCharacterIterator   A concrete subclass of CharacterIterator that iterates over the characters (code units or code points) in a char16_t array. More...
  class   UnicodeFilter   UnicodeFilter defines a protocol for selecting a subset of the full range (U+0000 to U+10FFFF) of Unicode characters. More...
  class   UnicodeFunctor   UnicodeFunctor is an abstract base class for objects that perform match and/or replace operations on Unicode strings. More...
  class   UnicodeMatcher   UnicodeMatcher defines a protocol for objects that can match a range of characters in a Replaceable string. More...
  class   UnicodeSet   A mutable set of Unicode characters and multicharacter strings. More...
  class   UnicodeString   UnicodeString is a string class that stores Unicode characters directly and provides similar functionality as the Java String and StringBuffer/StringBuilder classes. More...
  class   UMemory   UMemory is the common ICU base class. More...
  class   UObject   UObject is the common ICU "boilerplate" class. More...
  class   UnicodeSetIterator   UnicodeSetIterator iterates over the contents of a UnicodeSet. More...
  class   AlphabeticIndex   AlphabeticIndex supports the creation of a UI index appropriate for a given language. More...
  class   BasicTimeZone   BasicTimeZone is an abstract class extending TimeZone. More...
  class   Calendar   Calendar is an abstract base class for converting between a UDate object and a set of integer fields such as YEAR, MONTH, DAY, HOUR, and so on. More...
  class   ChoiceFormat   ChoiceFormat converts between ranges of numeric values and strings for those ranges. More...
  class   CollationElementIterator   The CollationElementIterator class is used as an iterator to walk through
each character of an international string. More...
  class   Collator   The Collator class performs locale-sensitive string comparison. More...
  class   CollatorFactory   A factory, used with registerFactory, the creates multiple collators and provides display names for them. More...
  class   CompactDecimalFormat   IMPORTANT: New users are strongly encouraged to see if numberformatter.h fits their use case. More...
  class   CurrencyAmount   A currency together with a numeric amount, such as 200 USD. More...
  class   CurrencyPluralInfo   This class represents the information needed by DecimalFormat to format currency plural, such as "3.00 US dollars" or "1.00 US dollar". More...
  class   CurrencyUnit   A unit of currency, such as USD (U.S. More...
  class   DateFormat   DateFormat is an abstract class for a family of classes that convert dates and times from their internal representations to textual form and back again in a language-independent manner. More...
  class   DecimalFormatSymbols   This class represents the set of symbols needed by DecimalFormat to format numbers. More...
  class   DecimalFormat   IMPORTANT: New users are strongly encouraged to see if numberformatter.h fits their use case. More...
  class   DisplayOptions   Represents all the display options that are supported by CLDR such as grammatical case, noun class, ... More...
  class   DateFormatSymbols   DateFormatSymbols is a public class for encapsulating localizable date-time formatting data – including timezone data. More...
  class   FormattedDateInterval   An immutable class containing the result of a date interval formatting operation. More...
  class   DateIntervalFormat   DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent manner. More...
  class   DateIntervalInfo   DateIntervalInfo is a public class for encapsulating localizable date time interval patterns. More...
  class   DateTimePatternGenerator   This class provides flexible generation of date format patterns, like "yy-MM-dd". More...
  class   DateTimeRule   DateTimeRule is a class representing a time in a year by a rule specified by month, day of month, day of week and time in the day. More...
  class   FieldPosition   FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output. More...
  class   Formattable   Formattable objects can be passed to the Format class or its subclasses for formatting. More...
  class   Format   Base class for all formats. More...
  class   ConstrainedFieldPosition   Represents a span of a string containing a given field. More...
  class   FormattedValue   An abstract formatted value: a string with associated field attributes. More...
  class   FieldPositionIterator   FieldPositionIterator returns the field ids and their start/limit positions generated by a call to Format::format. More...
  class   GenderInfo   GenderInfo computes the gender of a list as a whole given the gender of each element. More...
  class   GregorianCalendar   Concrete class which provides the standard calendar used by most of the world. More...
  class   FormattedList   An immutable class containing the result of a list formatting operation. More...
  class   ListFormatter   An immutable class for formatting a list, using data from CLDR (or supplied separately). More...
  class   MeasureFormat   class   MeasureUnit   A unit such as length, mass, volume, currency, etc. More...
  class   Measure   An amount of a specified unit, consisting of a number and a Unit. More...
  class   MessageFormat   class   NumberFormat   class   NumberFormatFactory   A NumberFormatFactory is used to register new number formats. More...
  class   SimpleNumberFormatFactory   A NumberFormatFactory that supports a single locale. More...
  class   NumberingSystem   Defines numbering systems. More...
  class   PluralFormat   class   PluralRules   Defines rules for mapping non-negative numeric values onto a small set of keywords. More...
  class   RuleBasedNumberFormat   The RuleBasedNumberFormat class formats numbers according to a set of rules. More...
  class   RuleBasedTimeZone   a BasicTimeZone subclass implemented in terms of InitialTimeZoneRule and TimeZoneRule instances More...
  class   RegexPattern   Class RegexPattern represents a compiled regular expression. More...
  class   RegexMatcher   class RegexMatcher bundles together a regular expression pattern and input text to which the expression can be applied. More...
  class   Region   Region is the class representing a Unicode Region Code, also known as a Unicode Region Subtag, which is defined based upon the BCP 47 standard. More...
  class   FormattedRelativeDateTime   An immutable class containing the result of a relative datetime formatting operation. More...
  class   RelativeDateTimeFormatter   Formats simple relative dates. More...
  class   ScientificNumberFormatter   A formatter that formats numbers in user-friendly scientific notation. More...
  class   SearchIterator   SearchIterator is an abstract base class that provides methods to search for a pattern within a text string. More...
  class   SelectFormat   class   SimpleTimeZone   SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar. More...
  class   SimpleDateFormat   SimpleDateFormat is a concrete class for formatting and parsing dates in a language-independent manner. More...
  class   CollationKey   Collation keys are generated by the Collator class. More...
  class   StringSearch   StringSearch is a SearchIterator that provides language-sensitive text searching based on the comparison rules defined in a RuleBasedCollator object. More...
  class   RuleBasedCollator   The RuleBasedCollator class provides the implementation of Collator, using data-driven tables. More...
  class   TimeZone   TimeZone represents a time zone offset, and also figures out daylight savings. More...
  class   TimeUnit   Measurement unit for time units. More...
  class   TimeUnitAmount   Express a duration as a time unit and number. More...
  class   TimeUnitFormat   Format or parse a TimeUnitAmount, using plural rules for the units where available. More...
  class   Transliterator   Transliterator is an abstract class that transliterates text from one format to another. More...
  class   TimeZoneFormat   TimeZoneFormat supports time zone display name formatting and parsing. More...
  class   TimeZoneNames   TimeZoneNames is an abstract class representing the time zone display name data model defined by UTS#35 Unicode Locale Data Markup Language (LDML). More...
  class   TimeZoneRule   TimeZoneRule is a class representing a rule for time zone. More...
  class   InitialTimeZoneRule   InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning and has no actual start times. More...
  class   AnnualTimeZoneRule   AnnualTimeZoneRule is a class used for representing a time zone rule which takes effect annually. More...
  class   TimeArrayTimeZoneRule   TimeArrayTimeZoneRule represents a time zone rule whose start times are defined by an array of milliseconds since the standard base time. More...
  class   TimeZoneTransition   TimeZoneTransition is a class representing a time zone transition. More...
  class   UnicodeReplacer   UnicodeReplacer defines a protocol for objects that replace a range of characters in a Replaceable string with output text. More...
  class   VTimeZone   VTimeZone is a class implementing RFC2445 VTIMEZONE. More...
  class   ParagraphLayout   ParagraphLayout. More...
  class   RunArray   The RunArray class is a base class for building classes which represent data that is associated with runs of text. More...
  class   FontRuns   The FontRuns class associates pointers to LEFontInstance objects with runs of text. More...
  class   LocaleRuns   The LocaleRuns class associates pointers to Locale objects with runs of text. More...
  class   ValueRuns   The ValueRuns class associates integer values with runs of text. More...
  enum   UMatchDegree { U_MISMATCH , U_PARTIAL_MATCH , U_MATCH }   Constants returned by UnicodeMatcher::matches() indicating the degree of match. More...
  enum   UMeasureUnitComplexity { UMEASURE_UNIT_SINGLE , UMEASURE_UNIT_COMPOUND , UMEASURE_UNIT_MIXED }   Enumeration for unit complexity. More...
  enum   UMeasurePrefix {
  UMEASURE_PREFIX_ONE = 30 + 0 , UMEASURE_PREFIX_YOTTA = UMEASURE_PREFIX_ONE + 24 , UMEASURE_PREFIX_RONNA = UMEASURE_PREFIX_ONE + 27 , UMEASURE_PREFIX_QUETTA = UMEASURE_PREFIX_ONE + 30 ,
  UMEASURE_PREFIX_INTERNAL_MAX_SI = UMEASURE_PREFIX_QUETTA , UMEASURE_PREFIX_ZETTA = UMEASURE_PREFIX_ONE + 21 , UMEASURE_PREFIX_EXA = UMEASURE_PREFIX_ONE + 18 , UMEASURE_PREFIX_PETA = UMEASURE_PREFIX_ONE + 15 ,
  UMEASURE_PREFIX_TERA = UMEASURE_PREFIX_ONE + 12 , UMEASURE_PREFIX_GIGA = UMEASURE_PREFIX_ONE + 9 , UMEASURE_PREFIX_MEGA = UMEASURE_PREFIX_ONE + 6 , UMEASURE_PREFIX_KILO = UMEASURE_PREFIX_ONE + 3 ,
  UMEASURE_PREFIX_HECTO = UMEASURE_PREFIX_ONE + 2 , UMEASURE_PREFIX_DEKA = UMEASURE_PREFIX_ONE + 1 , UMEASURE_PREFIX_DECI = UMEASURE_PREFIX_ONE + -1 , UMEASURE_PREFIX_CENTI = UMEASURE_PREFIX_ONE + -2 ,
  UMEASURE_PREFIX_MILLI = UMEASURE_PREFIX_ONE + -3 , UMEASURE_PREFIX_MICRO = UMEASURE_PREFIX_ONE + -6 , UMEASURE_PREFIX_NANO = UMEASURE_PREFIX_ONE + -9 , UMEASURE_PREFIX_PICO = UMEASURE_PREFIX_ONE + -12 ,
  UMEASURE_PREFIX_FEMTO = UMEASURE_PREFIX_ONE + -15 , UMEASURE_PREFIX_ATTO = UMEASURE_PREFIX_ONE + -18 , UMEASURE_PREFIX_ZEPTO = UMEASURE_PREFIX_ONE + -21 , UMEASURE_PREFIX_YOCTO = UMEASURE_PREFIX_ONE + -24 ,
  UMEASURE_PREFIX_RONTO = UMEASURE_PREFIX_ONE + -27 , UMEASURE_PREFIX_QUECTO = UMEASURE_PREFIX_ONE + -30 , UMEASURE_PREFIX_INTERNAL_MIN_SI = UMEASURE_PREFIX_QUECTO , UMEASURE_PREFIX_INTERNAL_ONE_BIN = -60 ,
  UMEASURE_PREFIX_KIBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 1 , UMEASURE_PREFIX_INTERNAL_MIN_BIN = UMEASURE_PREFIX_KIBI , UMEASURE_PREFIX_MEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 2 , UMEASURE_PREFIX_GIBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 3 ,
  UMEASURE_PREFIX_TEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 4 , UMEASURE_PREFIX_PEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 5 , UMEASURE_PREFIX_EXBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 6 , UMEASURE_PREFIX_ZEBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 7 ,
  UMEASURE_PREFIX_YOBI = UMEASURE_PREFIX_INTERNAL_ONE_BIN + 8 , UMEASURE_PREFIX_INTERNAL_MAX_BIN = UMEASURE_PREFIX_YOBI
}   Enumeration for SI and binary prefixes, e.g. More...
  enum   URBNFRuleSetTag {
  URBNF_SPELLOUT , URBNF_ORDINAL , URBNF_DURATION , URBNF_NUMBERING_SYSTEM = 3 ,
  URBNF_COUNT
}   Tags for the predefined rulesets. More...
  void  locale_available_init ()   U_EXPORT UBool  operator== (const StringPiece &x, const StringPiece &y)   Global operator == for StringPiece. More...
  bool  operator!= (const StringPiece &x, const StringPiece &y)   Global operator != for StringPiece. More...
  U_COMMON_API UnicodeString  operator+ (const UnicodeString &s1, const UnicodeString &s2)   Creates a new UnicodeString from the concatenation of two others. More...
  template<typename S , typename = std::enable_if_t<ConvertibleToU16StringView<S>>> UnicodeString  operator+ (const UnicodeString &s1, const S &s2)   Creates a new UnicodeString from the concatenation of a UnicodeString and s2 which is, or which is implicitly convertible to, a std::u16string_view or (if U_SIZEOF_WCHAR_T==2) std::wstring_view. More...
  U_COMMON_API UnicodeString  unistr_internalConcat (const UnicodeString &s1, std::u16string_view s2)   UnicodeString  ures_getUnicodeString (const UResourceBundle *resB, UErrorCode *status)   Returns the string value from a string resource bundle. More...
  UnicodeString  ures_getNextUnicodeString (UResourceBundle *resB, const char **key, UErrorCode *status)   Returns the next string in a resource, or an empty string if there are no more resources to iterate over. More...
  UnicodeString  ures_getUnicodeStringByIndex (const UResourceBundle *resB, int32_t indexS, UErrorCode *status)   Returns the string in a given resource array or table at the specified index. More...
  UnicodeString  ures_getUnicodeStringByKey (const UResourceBundle *resB, const char *key, UErrorCode *status)   Returns a string in a resource that has a given key. More...
  void  GenderInfo_initCache (UErrorCode &status)   U_CAPI int32_t  umeas_getPrefixBase (UMeasurePrefix unitPrefix)   Returns the base of the factor associated with the given unit prefix: the base is 10 for SI prefixes (kilo, micro) and 1024 for binary prefixes (kibi, mebi). More...
  U_CAPI int32_t  umeas_getPrefixPower (UMeasurePrefix unitPrefix)   Returns the exponent of the factor associated with the given unit prefix, for example 3 for kilo, -6 for micro, 1 for kibi, 2 for mebi, 3 for gibi. More...
  U_IO_API std::ostream &  operator<< (std::ostream &stream, const UnicodeString &s)   Write the contents of a UnicodeString to a C++ ostream. More...
  U_IO_API std::istream &  operator>> (std::istream &stream, UnicodeString &s)   Write the contents from a C++ istream to a UnicodeString. More...
 

File coll.h.

File tblcoll.h.

Created by: Helena Shih

Modification History:

Date Name Description 02/5/97 aliu Modified createDefault to load collation data from binary files when possible. Added related methods createCollationFromFile, chopLocale, createPathName. 02/11/97 aliu Added members addToCache, findInCache, and fgCache. 02/12/97 aliu Modified to create objects from RuleBasedCollator cache. Moved cache out of Collation class. 02/13/97 aliu Moved several methods out of this class and into RuleBasedCollator, with modifications. Modified createDefault() to call new RuleBasedCollator(Locale&) constructor. General clean up and documentation. 02/20/97 helena Added clone, operator==, operator!=, operator=, copy constructor and getDynamicClassID. 03/25/97 helena Updated with platform independent data types. 05/06/97 helena Added memory allocation error detection. 06/20/97 helena Java class name change. 09/03/97 helena Added createCollationKeyValues(). 02/10/98 damiba Added compare() with length as parameter. 04/23/99 stephen Removed EDecompositionMode, merged with Normalizer::EMode. 11/02/99 helena Collator performance enhancements. Eliminates the UnicodeString construction and special case for NO_OP. 11/23/99 srl More performance enhancements. Inlining of critical accessors. 05/15/00 helena Added version information API. 01/29/01 synwee Modified into a C++ wrapper which calls C apis (ucol.h). 2012-2014 markus Rewritten in C++ again.

Created by: Helena Shih

Modification History:

Date Name Description 2/5/97 aliu Added streamIn and streamOut methods. Added constructor which reads RuleBasedCollator object from a binary file. Added writeToFile method which streams RuleBasedCollator out to a binary file. The streamIn and streamOut methods use istream and ostream objects in binary mode. 2/12/97 aliu Modified to use TableCollationData sub-object to hold invariant data. 2/13/97 aliu Moved several methods into this class from Collation. Added a private RuleBasedCollator(Locale&) constructor, to be used by Collator::createDefault(). General clean up. 2/20/97 helena Added clone, operator==, operator!=, operator=, and copy constructor and getDynamicClassID. 3/5/97 aliu Modified constructFromFile() to add parameter specifying whether or not binary loading is to be attempted. This is required for dynamic rule loading. 05/07/97 helena Added memory allocation error detection. 6/17/97 helena Added IDENTICAL strength for compare, changed getRules to use MergeCollation::getPattern. 6/20/97 helena Java class name change. 8/18/97 helena Added internal API documentation. 09/03/97 helena Added createCollationKeyValues(). 02/10/98 damiba Added compare with "length" parameter 08/05/98 erm Synched with 1.2 version of RuleBasedCollator.java 04/23/99 stephen Removed EDecompositionMode, merged with Normalizer::EMode 06/14/99 stephen Removed kResourceBundleSuffix 11/02/99 helena Collator performance enhancements. Eliminates the UnicodeString construction and special case for NO_OP. 11/23/99 srl More performance enhancements. Updates to NormalizerIterator internal state management. 12/15/99 aliu Update to support Thai collation. Move NormalizerIterator to implementation file. 01/29/01 synwee Modified into a C++ wrapper which calls C API (ucol.h) 2012-2014 markus Rewritten in C++ again.

◆ DictionaryBasedBreakIterator

An obsolete subclass of RuleBasedBreakIterator.

Handling of dictionary- based break iteration has been folded into the base class. This class is deprecated as of ICU 3.6.

Deprecated:
ICU 3.6

Definition at line 38 of file dbbi.h.

◆ UFieldResolutionTable typedef int32_t icu::UFieldResolutionTable[12][8] ◆ UMeasurePrefix ◆ UMatchDegree

Constants returned by UnicodeMatcher::matches() indicating the degree of match.

Stable:
ICU 2.4
Enumerator U_MISMATCH 

Constant returned by matches() indicating a mismatch between the text and this matcher.

The text contains a character which does not match, or the text does not contain all desired characters for a non-incremental match.

Stable:
ICU 2.4
U_PARTIAL_MATCH 

Constant returned by matches() indicating a partial match between the text and this matcher.

This value is only returned for incremental match operations. All characters of the text match, but more characters are required for a complete match. Alternatively, for variable-length matchers, all characters of the text match, and if more characters were supplied at limit, they might also match.

Stable:
ICU 2.4
U_MATCH 

Constant returned by matches() indicating a complete match between the text and this matcher.

For an incremental variable-length match, this value is returned if the given text matches, and it is known that additional characters would not alter the extent of the match.

Stable:
ICU 2.4

Definition at line 33 of file unimatch.h.

◆ UMeasurePrefix

Enumeration for SI and binary prefixes, e.g.

"kilo-", "nano-", "mebi-".

Enum values should be treated as opaque: use umeas_getPrefixPower() and umeas_getPrefixBase() to find their corresponding values.

Stable:
ICU 69
See also
umeas_getPrefixBase
umeas_getPrefixPower
Enumerator UMEASURE_PREFIX_ONE 

The absence of an SI or binary prefix.

The integer representation of this enum value is an arbitrary implementation detail and should not be relied upon: use umeas_getPrefixPower() to obtain meaningful values.

Stable:
ICU 69
UMEASURE_PREFIX_YOTTA 

SI prefix: yotta, 10^24.

Stable:
ICU 69
UMEASURE_PREFIX_RONNA 

SI prefix: ronna, 10^27.

Stable:
ICU 75
UMEASURE_PREFIX_QUETTA 

SI prefix: quetta, 10^30.

Stable:
ICU 75
UMEASURE_PREFIX_INTERNAL_MAX_SI 

ICU use only.

Used to determine the set of base-10 SI prefixes.

Internal:
Do not use. This API is for internal use only.
UMEASURE_PREFIX_ZETTA 

SI prefix: zetta, 10^21.

Stable:
ICU 69
UMEASURE_PREFIX_EXA 

SI prefix: exa, 10^18.

Stable:
ICU 69
UMEASURE_PREFIX_PETA 

SI prefix: peta, 10^15.

Stable:
ICU 69
UMEASURE_PREFIX_TERA 

SI prefix: tera, 10^12.

Stable:
ICU 69
UMEASURE_PREFIX_GIGA 

SI prefix: giga, 10^9.

Stable:
ICU 69
UMEASURE_PREFIX_MEGA 

SI prefix: mega, 10^6.

Stable:
ICU 69
UMEASURE_PREFIX_KILO 

SI prefix: kilo, 10^3.

Stable:
ICU 69
UMEASURE_PREFIX_HECTO 

SI prefix: hecto, 10^2.

Stable:
ICU 69
UMEASURE_PREFIX_DEKA 

SI prefix: deka, 10^1.

Stable:
ICU 69
UMEASURE_PREFIX_DECI 

SI prefix: deci, 10^-1.

Stable:
ICU 69
UMEASURE_PREFIX_CENTI 

SI prefix: centi, 10^-2.

Stable:
ICU 69
UMEASURE_PREFIX_MILLI 

SI prefix: milli, 10^-3.

Stable:
ICU 69
UMEASURE_PREFIX_MICRO 

SI prefix: micro, 10^-6.

Stable:
ICU 69
UMEASURE_PREFIX_NANO 

SI prefix: nano, 10^-9.

Stable:
ICU 69
UMEASURE_PREFIX_PICO 

SI prefix: pico, 10^-12.

Stable:
ICU 69
UMEASURE_PREFIX_FEMTO 

SI prefix: femto, 10^-15.

Stable:
ICU 69
UMEASURE_PREFIX_ATTO 

SI prefix: atto, 10^-18.

Stable:
ICU 69
UMEASURE_PREFIX_ZEPTO 

SI prefix: zepto, 10^-21.

Stable:
ICU 69
UMEASURE_PREFIX_YOCTO 

SI prefix: yocto, 10^-24.

Stable:
ICU 69
UMEASURE_PREFIX_RONTO 

SI prefix: ronto, 10^-27.

Stable:
ICU 75
UMEASURE_PREFIX_QUECTO 

SI prefix: quecto, 10^-30.

Stable:
ICU 75
UMEASURE_PREFIX_INTERNAL_MIN_SI 

ICU use only.

Used to determine the set of base-10 SI prefixes.

Internal:
Do not use. This API is for internal use only.
UMEASURE_PREFIX_INTERNAL_ONE_BIN 

ICU use only.

Sets the arbitrary offset of the base-1024 binary prefixes' enum values.

Internal:
Do not use. This API is for internal use only.
UMEASURE_PREFIX_KIBI 

Binary prefix: kibi, 1024^1.

Stable:
ICU 69
UMEASURE_PREFIX_INTERNAL_MIN_BIN 

ICU use only.

Used to determine the set of base-1024 binary prefixes.

Internal:
Do not use. This API is for internal use only.
UMEASURE_PREFIX_MEBI 

Binary prefix: mebi, 1024^2.

Stable:
ICU 69
UMEASURE_PREFIX_GIBI 

Binary prefix: gibi, 1024^3.

Stable:
ICU 69
UMEASURE_PREFIX_TEBI 

Binary prefix: tebi, 1024^4.

Stable:
ICU 69
UMEASURE_PREFIX_PEBI 

Binary prefix: pebi, 1024^5.

Stable:
ICU 69
UMEASURE_PREFIX_EXBI 

Binary prefix: exbi, 1024^6.

Stable:
ICU 69
UMEASURE_PREFIX_ZEBI 

Binary prefix: zebi, 1024^7.

Stable:
ICU 69
UMEASURE_PREFIX_YOBI 

Binary prefix: yobi, 1024^8.

Stable:
ICU 69
UMEASURE_PREFIX_INTERNAL_MAX_BIN 

ICU use only.

Used to determine the set of base-1024 binary prefixes.

Internal:
Do not use. This API is for internal use only.

Definition at line 89 of file measunit.h.

◆ UMeasureUnitComplexity

Enumeration for unit complexity.

There are three levels:

The complexity determines which operations are available. For example, you cannot set the power or prefix of a compound unit.

Stable:
ICU 67
Enumerator UMEASURE_UNIT_SINGLE 

A single unit, like kilojoule.

Stable:
ICU 67
UMEASURE_UNIT_COMPOUND 

A compound unit, like meter-per-second.

Stable:
ICU 67
UMEASURE_UNIT_MIXED 

A mixed unit, like hour+minute.

Stable:
ICU 67

Definition at line 55 of file measunit.h.

◆ URBNFRuleSetTag

Tags for the predefined rulesets.

Stable:
ICU 2.2
Enumerator URBNF_SPELLOUT 

Requests predefined ruleset for spelling out numeric values in words.

Stable:
ICU 2.2
URBNF_ORDINAL 

Requests predefined ruleset for the ordinal form of a number.

Stable:
ICU 2.2
URBNF_DURATION 

Requests predefined ruleset for formatting a value as a duration in hours, minutes, and seconds.

Deprecated:
ICU 74 Use MeasureFormat instead.
URBNF_NUMBERING_SYSTEM 

Requests predefined ruleset for various non-place-value numbering systems.

WARNING: The same resource contains rule sets for a variety of different numbering systems. You need to call setDefaultRuleSet() on the formatter to choose the actual numbering system.

Stable:
ICU 2.2
URBNF_COUNT 

One more than the highest normal URBNFRuleSetTag value.

Deprecated:
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 56 of file rbnf.h.

◆ GenderInfo_initCache() void icu::GenderInfo_initCache ( UErrorCode &  status )
Internal:
Do not use.

This API is for internal use only. Forward Declaration

◆ locale_available_init() void icu::locale_available_init ( )
Internal:
Do not use.

This API is for internal use only.

◆ operator!=() ◆ operator+() [1/2]

template<typename S , typename = std::enable_if_t<ConvertibleToU16StringView<S>>>

Creates a new UnicodeString from the concatenation of a UnicodeString and s2 which is, or which is implicitly convertible to, a std::u16string_view or (if U_SIZEOF_WCHAR_T==2) std::wstring_view.

Parameters
s1 The string to be copied to the new one. s2 The string view to be copied to the new string, after s1.
Returns
UnicodeString(s1).append(s2)
Draft:
This API may be changed in the future versions and was introduced in ICU 76

Definition at line 4117 of file unistr.h.

References unistr_internalConcat().

◆ operator+() [2/2]

Creates a new UnicodeString from the concatenation of two others.

Parameters
s1 The first string to be copied to the new one. s2 The second string to be copied to the new one, after s1.
Returns
UnicodeString(s1).append(s2)
Stable:
ICU 2.8
◆ operator<<()

Write the contents of a UnicodeString to a C++ ostream.

This functions writes the characters in a UnicodeString to an ostream. The UChars in the UnicodeString are converted to the char based ostream with the default converter.

Stable:
3.0
◆ operator==()

Global operator == for StringPiece.

Parameters
Returns
true if the string data is equal
Stable:
ICU 4.8

Referenced by icu::BreakIterator::operator!=(), icu::Calendar::operator!=(), icu::CurrencyPluralInfo::operator!=(), icu::DateFormatSymbols::operator!=(), icu::DateIntervalInfo::operator!=(), icu::DecimalFormatSymbols::operator!=(), icu::FieldPosition::operator!=(), icu::FieldPositionIterator::operator!=(), icu::DateIntervalFormat::operator!=(), icu::Format::operator!=(), icu::Formattable::operator!=(), icu::ForwardCharacterIterator::operator!=(), icu::Locale::operator!=(), icu::MessagePattern::operator!=(), icu::Normalizer::operator!=(), icu::ParsePosition::operator!=(), icu::MessagePattern::Part::operator!=(), icu::PluralRules::operator!=(), icu::RegexPattern::operator!=(), icu::UnicodeString::operator!=(), icu::SearchIterator::operator!=(), icu::TimeZone::operator!=(), icu::TimeZoneNames::operator!=(), icu::UnicodeSet::operator!=(), icu::Measure::operator!=(), and icu::TimeUnitAmount::operator!=().

◆ operator>>()

Write the contents from a C++ istream to a UnicodeString.

The UChars in the UnicodeString are converted from the char based istream with the default converter.

Stable:
3.0
◆ umeas_getPrefixBase()

Returns the base of the factor associated with the given unit prefix: the base is 10 for SI prefixes (kilo, micro) and 1024 for binary prefixes (kibi, mebi).

Stable:
ICU 69
◆ umeas_getPrefixPower()

Returns the exponent of the factor associated with the given unit prefix, for example 3 for kilo, -6 for micro, 1 for kibi, 2 for mebi, 3 for gibi.

Stable:
ICU 69
◆ unistr_internalConcat() ◆ ures_getNextUnicodeString() ◆ ures_getUnicodeString()

Returns the string value from a string resource bundle.

Parameters
resB a resource, should have type URES_STRING status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a non-failing error e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING
Returns
The string value, or a bogus string if there is a failure UErrorCode.
Stable:
ICU 2.0

Definition at line 813 of file ures.h.

References icu::UnicodeString::setTo(), icu::UnicodeString::setToBogus(), U_SUCCESS, and ures_getString().

◆ ures_getUnicodeStringByIndex() ◆ ures_getUnicodeStringByKey() ◆ ConvertibleToU16StringView

template<typename T >

constexpr bool icu::ConvertibleToU16StringView constexpr Initial value:

=

std::is_convertible_v<T, std::u16string_view>

|| std::is_convertible_v<T, std::basic_string_view<uint16_t>>

Is T convertible to a std::u16string_view or some other 16-bit string view?

Internal:
Do not use.

This API is for internal use only.

Definition at line 385 of file char16ptr.h.

◆ kInternalNumSysNameCapacity constexpr const size_t icu::kInternalNumSysNameCapacity = 8 constexpr

Size of a numbering system name.

Internal:
Do not use. This API is for internal use only.

Definition at line 42 of file numsys.h.

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