The Tor Browser: intl/icu/source/i18n/ucal.cpp@fc2d59ddac77 (annotated)

intl/icu/source/i18n/ucal.cpp@fc2d59ddac77 (annotated)

intl/icu/source/i18n/ucal.cpp

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
 *******************************************************************************
 *   Copyright (C) 1996-2013, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *******************************************************************************
 */
 #include "utypeinfo.h"  // for 'typeid' to work
 #include "unicode/utypes.h"
 #if !UCONFIG_NO_FORMATTING
 #include "unicode/ucal.h"
 #include "unicode/uloc.h"
 #include "unicode/calendar.h"
 #include "unicode/timezone.h"
 #include "unicode/gregocal.h"
 #include "unicode/simpletz.h"
 #include "unicode/ustring.h"
 #include "unicode/strenum.h"
 #include "unicode/localpointer.h"
 #include "cmemory.h"
 #include "cstring.h"
 #include "ustrenum.h"
 #include "uenumimp.h"
 #include "ulist.h"
 U_NAMESPACE_USE
 static TimeZone*
 _createTimeZone(const UChar* zoneID, int32_t len, UErrorCode* ec) {
     TimeZone* zone = NULL;
     if (ec!=NULL && U_SUCCESS(*ec)) {
         // Note that if zoneID is invalid, we get back GMT. This odd
         // behavior is by design and goes back to the JDK. The only
         // failure we will see is a memory allocation failure.
         int32_t l = (len<0 ? u_strlen(zoneID) : len);
         UnicodeString zoneStrID;
         zoneStrID.setTo((UBool)(len < 0), zoneID, l); /* temporary read-only alias */
         zone = TimeZone::createTimeZone(zoneStrID);
         if (zone == NULL) {
             *ec = U_MEMORY_ALLOCATION_ERROR;
         }
     }
     return zone;
 }
 U_CAPI UEnumeration* U_EXPORT2
 ucal_openTimeZoneIDEnumeration(USystemTimeZoneType zoneType, const char* region,
                                 const int32_t* rawOffset, UErrorCode* ec) {
     return uenum_openFromStringEnumeration(TimeZone::createTimeZoneIDEnumeration(
         zoneType, region, rawOffset, *ec), ec);
 }
 U_CAPI UEnumeration* U_EXPORT2
 ucal_openTimeZones(UErrorCode* ec) {
     return uenum_openFromStringEnumeration(TimeZone::createEnumeration(), ec);
 }
 U_CAPI UEnumeration* U_EXPORT2
 ucal_openCountryTimeZones(const char* country, UErrorCode* ec) {
     return uenum_openFromStringEnumeration(TimeZone::createEnumeration(country), ec);
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getDefaultTimeZone(UChar* result, int32_t resultCapacity, UErrorCode* ec) {
     int32_t len = 0;
     if (ec!=NULL && U_SUCCESS(*ec)) {
         TimeZone* zone = TimeZone::createDefault();
         if (zone == NULL) {
             *ec = U_MEMORY_ALLOCATION_ERROR;
         } else {
             UnicodeString id;
             zone->getID(id);
             delete zone;
             len = id.extract(result, resultCapacity, *ec);
         }
     }
     return len;
 }
 U_CAPI void U_EXPORT2
 ucal_setDefaultTimeZone(const UChar* zoneID, UErrorCode* ec) {
     TimeZone* zone = _createTimeZone(zoneID, -1, ec);
     if (zone != NULL) {
         TimeZone::adoptDefault(zone);
     }
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getDSTSavings(const UChar* zoneID, UErrorCode* ec) {
     int32_t result = 0;
     TimeZone* zone = _createTimeZone(zoneID, -1, ec);
     if (U_SUCCESS(*ec)) {
         SimpleTimeZone* stz = dynamic_cast<SimpleTimeZone*>(zone);
         if (stz != NULL) {
             result = stz->getDSTSavings();
         } else {
             // Since there is no getDSTSavings on TimeZone, we use a
             // heuristic: Starting with the current time, march
             // forwards for one year, looking for DST savings.
             // Stepping by weeks is sufficient.
             UDate d = Calendar::getNow();
             for (int32_t i=0; i<53; ++i, d+=U_MILLIS_PER_DAY*7.0) {
                 int32_t raw, dst;
                 zone->getOffset(d, FALSE, raw, dst, *ec);
                 if (U_FAILURE(*ec)) {
                     break;
                 } else if (dst != 0) {
                     result = dst;
                     break;
                 }
             }
         }
     }
     delete zone;
     return result;
 }
 U_CAPI UDate  U_EXPORT2
 ucal_getNow()
 {
   return Calendar::getNow();
 }
 #define ULOC_LOCALE_IDENTIFIER_CAPACITY (ULOC_FULLNAME_CAPACITY + 1 + ULOC_KEYWORD_AND_VALUES_CAPACITY)
 U_CAPI UCalendar*  U_EXPORT2
 ucal_open(  const UChar*  zoneID,
             int32_t       len,
             const char*   locale,
             UCalendarType caltype,
             UErrorCode*   status)
 {
   if(U_FAILURE(*status)) return 0;
   TimeZone* zone = (zoneID==NULL) ? TimeZone::createDefault()
       : _createTimeZone(zoneID, len, status);
   if (U_FAILURE(*status)) {
       return NULL;
   }
   if ( caltype == UCAL_GREGORIAN ) {
       char  localeBuf[ULOC_LOCALE_IDENTIFIER_CAPACITY];
       if ( locale == NULL ) {
           locale = uloc_getDefault();
       }
       uprv_strncpy(localeBuf, locale, ULOC_LOCALE_IDENTIFIER_CAPACITY);
       uloc_setKeywordValue("calendar", "gregorian", localeBuf, ULOC_LOCALE_IDENTIFIER_CAPACITY, status);
       if (U_FAILURE(*status)) {
           return NULL;
       }
       return (UCalendar*)Calendar::createInstance(zone, Locale(localeBuf), *status);
   }
   return (UCalendar*)Calendar::createInstance(zone, Locale(locale), *status);
 }
 U_CAPI void U_EXPORT2
 ucal_close(UCalendar *cal)
 {
   delete (Calendar*) cal;
 }
 U_CAPI UCalendar* U_EXPORT2
 ucal_clone(const UCalendar* cal,
            UErrorCode*      status)
 {
   if(U_FAILURE(*status)) return 0;
   Calendar* res = ((Calendar*)cal)->clone();
   if(res == 0) {
     *status = U_MEMORY_ALLOCATION_ERROR;
     return 0;
   }
   return (UCalendar*) res;
 }
 U_CAPI void  U_EXPORT2
 ucal_setTimeZone(    UCalendar*      cal,
             const    UChar*            zoneID,
             int32_t        len,
             UErrorCode *status)
 {
   if(U_FAILURE(*status))
     return;
   TimeZone* zone = (zoneID==NULL) ? TimeZone::createDefault()
       : _createTimeZone(zoneID, len, status);
   if (zone != NULL) {
       ((Calendar*)cal)->adoptTimeZone(zone);
   }
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getTimeZoneID(const UCalendar *cal,
                    UChar *result,
                    int32_t resultLength,
                    UErrorCode *status)
 {
     if (U_FAILURE(*status)) {
         return 0;
     }
     const TimeZone& tz = ((Calendar*)cal)->getTimeZone();
     UnicodeString id;
     tz.getID(id);
     return id.extract(result, resultLength, *status);
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getTimeZoneDisplayName(const     UCalendar*                 cal,
                     UCalendarDisplayNameType     type,
                     const char             *locale,
                     UChar*                  result,
                     int32_t                 resultLength,
                     UErrorCode*             status)
 {
     if(U_FAILURE(*status)) return -1;
     const TimeZone& tz = ((Calendar*)cal)->getTimeZone();
     UnicodeString id;
     if(!(result==NULL && resultLength==0)) {
         // NULL destination for pure preflighting: empty dummy string
         // otherwise, alias the destination buffer
         id.setTo(result, 0, resultLength);
     }
     switch(type) {
   case UCAL_STANDARD:
       tz.getDisplayName(FALSE, TimeZone::LONG, Locale(locale), id);
       break;
   case UCAL_SHORT_STANDARD:
       tz.getDisplayName(FALSE, TimeZone::SHORT, Locale(locale), id);
       break;
   case UCAL_DST:
       tz.getDisplayName(TRUE, TimeZone::LONG, Locale(locale), id);
       break;
   case UCAL_SHORT_DST:
       tz.getDisplayName(TRUE, TimeZone::SHORT, Locale(locale), id);
       break;
     }
     return id.extract(result, resultLength, *status);
 }
 U_CAPI UBool  U_EXPORT2
 ucal_inDaylightTime(    const    UCalendar*      cal,
                     UErrorCode*     status )
 {
     if(U_FAILURE(*status)) return (UBool) -1;
     return ((Calendar*)cal)->inDaylightTime(*status);
 }
 U_CAPI void U_EXPORT2
 ucal_setGregorianChange(UCalendar *cal, UDate date, UErrorCode *pErrorCode) {
     if(U_FAILURE(*pErrorCode)) {
         return;
     }
     Calendar *cpp_cal = (Calendar *)cal;
     GregorianCalendar *gregocal = dynamic_cast<GregorianCalendar *>(cpp_cal);
     // Not if(gregocal == NULL) {
     // because we really want to work only with a GregorianCalendar, not with
     // its subclasses like BuddhistCalendar.
     if (cpp_cal == NULL) {
         // We normally don't check "this" pointers for NULL, but this here avoids
         // compiler-generated exception-throwing code in case cal == NULL.
         *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
         return;
     }
     if(typeid(*cpp_cal) != typeid(GregorianCalendar)) {
         *pErrorCode = U_UNSUPPORTED_ERROR;
         return;
     }
     gregocal->setGregorianChange(date, *pErrorCode);
 }
 U_CAPI UDate U_EXPORT2
 ucal_getGregorianChange(const UCalendar *cal, UErrorCode *pErrorCode) {
     if(U_FAILURE(*pErrorCode)) {
         return (UDate)0;
     }
     const Calendar *cpp_cal = (const Calendar *)cal;
     const GregorianCalendar *gregocal = dynamic_cast<const GregorianCalendar *>(cpp_cal);
     // Not if(gregocal == NULL) {
     // see comments in ucal_setGregorianChange().
     if (cpp_cal == NULL) {
         // We normally don't check "this" pointers for NULL, but this here avoids
         // compiler-generated exception-throwing code in case cal == NULL.
         *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
         return (UDate)0;
     }
     if(typeid(*cpp_cal) != typeid(GregorianCalendar)) {
         *pErrorCode = U_UNSUPPORTED_ERROR;
         return (UDate)0;
     }
     return gregocal->getGregorianChange();
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getAttribute(    const    UCalendar*              cal,
                   UCalendarAttribute      attr)
 {
     switch(attr) {
   case UCAL_LENIENT:
       return ((Calendar*)cal)->isLenient();
   case UCAL_FIRST_DAY_OF_WEEK:
       return ((Calendar*)cal)->getFirstDayOfWeek();
   case UCAL_MINIMAL_DAYS_IN_FIRST_WEEK:
       return ((Calendar*)cal)->getMinimalDaysInFirstWeek();
   case UCAL_REPEATED_WALL_TIME:
       return ((Calendar*)cal)->getRepeatedWallTimeOption();
   case UCAL_SKIPPED_WALL_TIME:
       return ((Calendar*)cal)->getSkippedWallTimeOption();
   default:
       break;
     }
     return -1;
 }
 U_CAPI void U_EXPORT2
 ucal_setAttribute(      UCalendar*              cal,
                   UCalendarAttribute      attr,
                   int32_t                 newValue)
 {
     switch(attr) {
   case UCAL_LENIENT:
       ((Calendar*)cal)->setLenient((UBool)newValue);
       break;
   case UCAL_FIRST_DAY_OF_WEEK:
       ((Calendar*)cal)->setFirstDayOfWeek((UCalendarDaysOfWeek)newValue);
       break;
   case UCAL_MINIMAL_DAYS_IN_FIRST_WEEK:
       ((Calendar*)cal)->setMinimalDaysInFirstWeek((uint8_t)newValue);
       break;
   case UCAL_REPEATED_WALL_TIME:
       ((Calendar*)cal)->setRepeatedWallTimeOption((UCalendarWallTimeOption)newValue);
       break;
   case UCAL_SKIPPED_WALL_TIME:
       ((Calendar*)cal)->setSkippedWallTimeOption((UCalendarWallTimeOption)newValue);
       break;
     }
 }
 U_CAPI const char* U_EXPORT2
 ucal_getAvailable(int32_t index)
 {
     return uloc_getAvailable(index);
 }
 U_CAPI int32_t U_EXPORT2
 ucal_countAvailable()
 {
     return uloc_countAvailable();
 }
 U_CAPI UDate  U_EXPORT2
 ucal_getMillis(    const    UCalendar*      cal,
                UErrorCode*     status)
 {
     if(U_FAILURE(*status)) return (UDate) 0;
     return ((Calendar*)cal)->getTime(*status);
 }
 U_CAPI void  U_EXPORT2
 ucal_setMillis(        UCalendar*      cal,
                UDate           dateTime,
                UErrorCode*     status )
 {
     if(U_FAILURE(*status)) return;
     ((Calendar*)cal)->setTime(dateTime, *status);
 }
 // TBD: why does this take an UErrorCode?
 U_CAPI void  U_EXPORT2
 ucal_setDate(        UCalendar*        cal,
              int32_t            year,
              int32_t            month,
              int32_t            date,
              UErrorCode        *status)
 {
     if(U_FAILURE(*status)) return;
     ((Calendar*)cal)->set(year, month, date);
 }
 // TBD: why does this take an UErrorCode?
 U_CAPI void  U_EXPORT2
 ucal_setDateTime(    UCalendar*        cal,
                  int32_t            year,
                  int32_t            month,
                  int32_t            date,
                  int32_t            hour,
                  int32_t            minute,
                  int32_t            second,
                  UErrorCode        *status)
 {
     if(U_FAILURE(*status)) return;
     ((Calendar*)cal)->set(year, month, date, hour, minute, second);
 }
 U_CAPI UBool  U_EXPORT2
 ucal_equivalentTo(    const UCalendar*      cal1,
                   const UCalendar*      cal2)
 {
     return ((Calendar*)cal1)->isEquivalentTo(*((Calendar*)cal2));
 }
 U_CAPI void  U_EXPORT2
 ucal_add(    UCalendar*                cal,
          UCalendarDateFields        field,
          int32_t                    amount,
          UErrorCode*                status)
 {
     if(U_FAILURE(*status)) return;
     ((Calendar*)cal)->add(field, amount, *status);
 }
 U_CAPI void  U_EXPORT2
 ucal_roll(        UCalendar*            cal,
           UCalendarDateFields field,
           int32_t                amount,
           UErrorCode*            status)
 {
     if(U_FAILURE(*status)) return;
     ((Calendar*)cal)->roll(field, amount, *status);
 }
 U_CAPI int32_t  U_EXPORT2
 ucal_get(    const    UCalendar*                cal,
          UCalendarDateFields        field,
          UErrorCode*                status )
 {
     if(U_FAILURE(*status)) return -1;
     return ((Calendar*)cal)->get(field, *status);
 }
 U_CAPI void  U_EXPORT2
 ucal_set(    UCalendar*                cal,
          UCalendarDateFields        field,
          int32_t                    value)
 {
     ((Calendar*)cal)->set(field, value);
 }
 U_CAPI UBool  U_EXPORT2
 ucal_isSet(    const    UCalendar*                cal,
            UCalendarDateFields        field)
 {
     return ((Calendar*)cal)->isSet(field);
 }
 U_CAPI void  U_EXPORT2
 ucal_clearField(    UCalendar*            cal,
                 UCalendarDateFields field)
 {
     ((Calendar*)cal)->clear(field);
 }
 U_CAPI void  U_EXPORT2
 ucal_clear(UCalendar* calendar)
 {
     ((Calendar*)calendar)->clear();
 }
 U_CAPI int32_t  U_EXPORT2
 ucal_getLimit(    const    UCalendar*              cal,
               UCalendarDateFields     field,
               UCalendarLimitType      type,
               UErrorCode        *status)
 {
     if(status==0 || U_FAILURE(*status)) {
         return -1;
     }
     switch(type) {
   case UCAL_MINIMUM:
       return ((Calendar*)cal)->getMinimum(field);
   case UCAL_MAXIMUM:
       return ((Calendar*)cal)->getMaximum(field);
   case UCAL_GREATEST_MINIMUM:
       return ((Calendar*)cal)->getGreatestMinimum(field);
   case UCAL_LEAST_MAXIMUM:
       return ((Calendar*)cal)->getLeastMaximum(field);
   case UCAL_ACTUAL_MINIMUM:
       return ((Calendar*)cal)->getActualMinimum(field,
           *status);
   case UCAL_ACTUAL_MAXIMUM:
       return ((Calendar*)cal)->getActualMaximum(field,
           *status);
   default:
       break;
     }
     return -1;
 }
 U_CAPI const char * U_EXPORT2
 ucal_getLocaleByType(const UCalendar *cal, ULocDataLocaleType type, UErrorCode* status)
 {
     if (cal == NULL) {
         if (U_SUCCESS(*status)) {
             *status = U_ILLEGAL_ARGUMENT_ERROR;
         }
         return NULL;
     }
     return ((Calendar*)cal)->getLocaleID(type, *status);
 }
 U_CAPI const char * U_EXPORT2
 ucal_getTZDataVersion(UErrorCode* status)
 {
     return TimeZone::getTZDataVersion(*status);
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getCanonicalTimeZoneID(const UChar* id, int32_t len,
                             UChar* result, int32_t resultCapacity, UBool *isSystemID, UErrorCode* status) {
     if(status == 0 || U_FAILURE(*status)) {
         return 0;
     }
     if (isSystemID) {
         *isSystemID = FALSE;
     }
     if (id == 0 || len == 0 || result == 0 || resultCapacity <= 0) {
         *status = U_ILLEGAL_ARGUMENT_ERROR;
         return 0;
     }
     int32_t reslen = 0;
     UnicodeString canonical;
     UBool systemID = FALSE;
     TimeZone::getCanonicalID(UnicodeString(id, len), canonical, systemID, *status);
     if (U_SUCCESS(*status)) {
         if (isSystemID) {
             *isSystemID = systemID;
         }
         reslen = canonical.extract(result, resultCapacity, *status);
     }
     return reslen;
 }
 U_CAPI const char * U_EXPORT2
 ucal_getType(const UCalendar *cal, UErrorCode* status)
 {
     if (U_FAILURE(*status)) {
         return NULL;
     }
     return ((Calendar*)cal)->getType();
 }
 U_CAPI UCalendarWeekdayType U_EXPORT2
 ucal_getDayOfWeekType(const UCalendar *cal, UCalendarDaysOfWeek dayOfWeek, UErrorCode* status)
 {
     if (U_FAILURE(*status)) {
         return UCAL_WEEKDAY;
     }
     return ((Calendar*)cal)->getDayOfWeekType(dayOfWeek, *status);
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getWeekendTransition(const UCalendar *cal, UCalendarDaysOfWeek dayOfWeek, UErrorCode *status)
 {
     if (U_FAILURE(*status)) {
         return 0;
     }
     return ((Calendar*)cal)->getWeekendTransition(dayOfWeek, *status);
 }
 U_CAPI UBool U_EXPORT2
 ucal_isWeekend(const UCalendar *cal, UDate date, UErrorCode *status)
 {
     if (U_FAILURE(*status)) {
         return FALSE;
     }
     return ((Calendar*)cal)->isWeekend(date, *status);
 }
 U_CAPI int32_t  U_EXPORT2
 ucal_getFieldDifference(UCalendar* cal, UDate target,
                         UCalendarDateFields field,
                         UErrorCode* status )
 {
     if (U_FAILURE(*status)) {
         return 0;
     }
     return ((Calendar*)cal)->fieldDifference(target, field, *status);
 }
 static const UEnumeration defaultKeywordValues = {
     NULL,
     NULL,
     ulist_close_keyword_values_iterator,
     ulist_count_keyword_values,
     uenum_unextDefault,
     ulist_next_keyword_value,
     ulist_reset_keyword_values_iterator
 };
 static const char * const CAL_TYPES[] = {
         "gregorian",
         "japanese",
         "buddhist",
         "roc",
         "persian",
         "islamic-civil",
         "islamic",
         "hebrew",
         "chinese",
         "indian",
         "coptic",
         "ethiopic",
         "ethiopic-amete-alem",
         "iso8601",
         "dangi",
         "islamic-umalqura",
         "islamic-tbla",
         "islamic-rgsa",
         NULL
 };
 U_CAPI UEnumeration* U_EXPORT2
 ucal_getKeywordValuesForLocale(const char * /* key */, const char* locale, UBool commonlyUsed, UErrorCode *status) {
     // Resolve region
     char prefRegion[ULOC_FULLNAME_CAPACITY] = "";
     int32_t prefRegionLength = 0;
     prefRegionLength = uloc_getCountry(locale, prefRegion, sizeof(prefRegion), status);
     if (prefRegionLength == 0) {
         char loc[ULOC_FULLNAME_CAPACITY] = "";
         uloc_addLikelySubtags(locale, loc, sizeof(loc), status);
         prefRegionLength = uloc_getCountry(loc, prefRegion, sizeof(prefRegion), status);
     }
     // Read preferred calendar values from supplementalData calendarPreference
     UResourceBundle *rb = ures_openDirect(NULL, "supplementalData", status);
     ures_getByKey(rb, "calendarPreferenceData", rb, status);
     UResourceBundle *order = ures_getByKey(rb, prefRegion, NULL, status);
     if (*status == U_MISSING_RESOURCE_ERROR && rb != NULL) {
         *status = U_ZERO_ERROR;
         order = ures_getByKey(rb, "001", NULL, status);
     }
     // Create a list of calendar type strings
     UList *values = NULL;
     if (U_SUCCESS(*status)) {
         values = ulist_createEmptyList(status);
         if (U_SUCCESS(*status)) {
             for (int i = 0; i < ures_getSize(order); i++) {
                 int32_t len;
                 const UChar *type = ures_getStringByIndex(order, i, &len, status);
                 char *caltype = (char*)uprv_malloc(len + 1);
                 if (caltype == NULL) {
                     *status = U_MEMORY_ALLOCATION_ERROR;
                     break;
                 }
                 u_UCharsToChars(type, caltype, len);
                 *(caltype + len) = 0;
                 ulist_addItemEndList(values, caltype, TRUE, status);
                 if (U_FAILURE(*status)) {
                     break;
                 }
             }
             if (U_SUCCESS(*status) && !commonlyUsed) {
                 // If not commonlyUsed, add other available values
                 for (int32_t i = 0; CAL_TYPES[i] != NULL; i++) {
                     if (!ulist_containsString(values, CAL_TYPES[i], (int32_t)uprv_strlen(CAL_TYPES[i]))) {
                         ulist_addItemEndList(values, CAL_TYPES[i], FALSE, status);
                         if (U_FAILURE(*status)) {
                             break;
                         }
                     }
                 }
             }
             if (U_FAILURE(*status)) {
                 ulist_deleteList(values);
                 values = NULL;
             }
         }
     }
     ures_close(order);
     ures_close(rb);
     if (U_FAILURE(*status) || values == NULL) {
         return NULL;
     }
     // Create string enumeration
     UEnumeration *en = (UEnumeration*)uprv_malloc(sizeof(UEnumeration));
     if (en == NULL) {
         *status = U_MEMORY_ALLOCATION_ERROR;
         ulist_deleteList(values);
         return NULL;
     }
     ulist_resetList(values);
     memcpy(en, &defaultKeywordValues, sizeof(UEnumeration));
     en->context = values;
     return en;
 }
 U_CAPI UBool U_EXPORT2
 ucal_getTimeZoneTransitionDate(const UCalendar* cal, UTimeZoneTransitionType type,
                                UDate* transition, UErrorCode* status)
 {
     if (U_FAILURE(*status)) {
         return FALSE;
     }
     UDate base = ((Calendar*)cal)->getTime(*status);
     const TimeZone& tz = ((Calendar*)cal)->getTimeZone();
     const BasicTimeZone * btz = dynamic_cast<const BasicTimeZone *>(&tz);
     if (btz != NULL && U_SUCCESS(*status)) {
         TimeZoneTransition tzt;
         UBool inclusive = (type == UCAL_TZ_TRANSITION_NEXT_INCLUSIVE || type == UCAL_TZ_TRANSITION_PREVIOUS_INCLUSIVE);
         UBool result = (type == UCAL_TZ_TRANSITION_NEXT || type == UCAL_TZ_TRANSITION_NEXT_INCLUSIVE)?
                         btz->getNextTransition(base, inclusive, tzt):
                         btz->getPreviousTransition(base, inclusive, tzt);
         if (result) {
             *transition = tzt.getTime();
             return TRUE;
         }
     }
     return FALSE;
 }
 #ifndef U_HIDE_DRAFT_API
 U_CAPI int32_t U_EXPORT2
 ucal_getWindowsTimeZoneID(const UChar* id, int32_t len, UChar* winid, int32_t winidCapacity, UErrorCode* status) {
     if (U_FAILURE(*status)) {
         return 0;
     }
     int32_t resultLen = 0;
     UnicodeString resultWinID;
     TimeZone::getWindowsID(UnicodeString(id, len), resultWinID, *status);
     if (U_SUCCESS(*status) && resultWinID.length() > 0) {
         resultLen = resultWinID.length();
         resultWinID.extract(winid, winidCapacity, *status);
     }
     return resultLen;
 }
 U_CAPI int32_t U_EXPORT2
 ucal_getTimeZoneIDForWindowsID(const UChar* winid, int32_t len, const char* region, UChar* id, int32_t idCapacity, UErrorCode* status) {
     if (U_FAILURE(*status)) {
         return 0;
     }
     int32_t resultLen = 0;
     UnicodeString resultID;
     TimeZone::getIDForWindowsID(UnicodeString(winid, len), region, resultID, *status);
     if (U_SUCCESS(*status) && resultID.length() > 0) {
         resultLen = resultID.length();
         resultID.extract(id, idCapacity, *status);
     }
     return resultLen;
 }
 #endif /* U_HIDE_DRAFT_API */
 #endif /* #if !UCONFIG_NO_FORMATTING */

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intl/icu/source/i18n/ucal.cpp@fc2d59ddac77 (annotated)

intl/icu/source/i18n/ucal.cpp