/** * following are the type declarations for * implementations of APIs. If any of these * functions are NULL, U_UNSUPPORTED_ERROR * is returned. If close is NULL, the enumeration * object is going to be released. * Initial error checking is done in the body * of API function, so the implementations * need not to check the initial error condition.
*/
/** * Function type declaration for uenum_close(). * * This function should cleanup the enumerator object * * @param en enumeration to be closed
*/ typedefvoid U_CALLCONV
UEnumClose(UEnumeration *en);
/** * Function type declaration for uenum_count(). * * This function should count the number of elements * in this enumeration * * @param en enumeration to be counted * @param status pointer to UErrorCode variable * @return number of elements in enumeration
*/ typedef int32_t U_CALLCONV
UEnumCount(UEnumeration *en, UErrorCode *status);
/** * Function type declaration for uenum_unext(). * * This function returns the next element as a UChar *, * or NULL after all elements haven been enumerated. * * @param en enumeration * @param resultLength pointer to result length * @param status pointer to UErrorCode variable * @return next element as UChar *, * or NULL after all elements haven been enumerated
*/ typedefconst UChar* U_CALLCONV
UEnumUNext(UEnumeration* en,
int32_t* resultLength,
UErrorCode* status);
/** * Function type declaration for uenum_next(). * * This function returns the next element as a char *, * or NULL after all elements haven been enumerated. * * @param en enumeration * @param resultLength pointer to result length * @param status pointer to UErrorCode variable * @return next element as char *, * or NULL after all elements haven been enumerated
*/ typedefconstchar* U_CALLCONV
UEnumNext(UEnumeration* en,
int32_t* resultLength,
UErrorCode* status);
/** * Function type declaration for uenum_reset(). * * This function should reset the enumeration * object * * @param en enumeration * @param status pointer to UErrorCode variable
*/ typedefvoid U_CALLCONV
UEnumReset(UEnumeration* en,
UErrorCode* status);
struct UEnumeration { /* baseContext. For the base class only. Don't touch! */ void *baseContext;
/* context. Use it for what you need */ void *context;
/** * these are functions that will * be used for APIs
*/ /* called from uenum_close */
UEnumClose *close; /* called from uenum_count */
UEnumCount *count; /* called from uenum_unext */
UEnumUNext *uNext; /* called from uenum_next */
UEnumNext *next; /* called from uenum_reset */
UEnumReset *reset;
};
U_CDECL_END
/* This is the default implementation for uenum_unext(). * It automatically converts the char * string to UChar *. * Don't call this directly. This is called internally by uenum_unext * when a UEnumeration is defined with 'uNext' pointing to this * function.
*/
U_CAPI const UChar* U_EXPORT2
uenum_unextDefault(UEnumeration* en,
int32_t* resultLength,
UErrorCode* status);
/* This is the default implementation for uenum_next(). * It automatically converts the UChar * string to char *. * Don't call this directly. This is called internally by uenum_next * when a UEnumeration is defined with 'next' pointing to this * function.
*/
U_CAPI constchar* U_EXPORT2
uenum_nextDefault(UEnumeration* en,
int32_t* resultLength,
UErrorCode* status);
#endif
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