31 #if !UCONFIG_NO_COLLATION
40 class RuleBasedCollator;
160 UBool isBogus(
void)
const;
171 const uint8_t* getByteArray(int32_t& count)
const;
173 #ifdef U_USE_COLLATION_KEY_DEPRECATES
181 uint8_t* toByteArray(int32_t& count)
const;
184 #ifndef U_HIDE_DEPRECATED_API
229 int32_t hashCode(
void)
const;
241 static UClassID U_EXPORT2 getStaticClassID();
249 uint8_t *reallocate(int32_t newCapacity, int32_t length);
253 void setLength(int32_t newLength);
255 uint8_t *getBytes() {
256 return (fFlagAndLength >= 0) ? fUnion.fStackBuffer : fUnion.fFields.fBytes;
258 const uint8_t *getBytes()
const {
259 return (fFlagAndLength >= 0) ? fUnion.fStackBuffer : fUnion.fFields.fBytes;
261 int32_t getCapacity()
const {
262 return (fFlagAndLength >= 0) ? (int32_t)
sizeof(fUnion) : fUnion.fFields.fCapacity;
264 int32_t getLength()
const {
return fFlagAndLength & 0x7fffffff; }
281 friend class CollationKeyByteSink;
294 int32_t fFlagAndLength;
299 mutable int32_t fHashCode;
304 union StackBufferOrFields {
306 uint8_t fStackBuffer[32];
317 return !(*
this == other);
321 CollationKey::isBogus()
const
323 return fHashCode == 2;
326 inline const uint8_t*
327 CollationKey::getByteArray(int32_t &count)
const
virtual UClassID getDynamicClassID() const
ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.
UCollationResult
UCOL_LESS is returned if source string is compared to be less than target string in the ucol_strcoll(...
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside...
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
The RuleBasedCollator class provides the simple implementation of Collator, using data-driven tables...
C++ API: Collation Service.
UBool operator!=(const StringPiece &x, const StringPiece &y)
Global operator != for StringPiece.
EComparisonResult
LESS is returned if source string is compared to be less than target string in the compare() method...
Collation keys are generated by the Collator class.
C++ API: Common ICU base class UObject.
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
UErrorCode
Error code to replace exception handling, so that the code is compatible with all C++ compilers...
Basic definitions for ICU, for both C and C++ APIs.
UObject is the common ICU "boilerplate" class.
int8_t UBool
The ICU boolean type.