ICU 76.1: i18n/unicode/calendar.h Source File

ICU 76.1 76.1

calendar.h
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1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4********************************************************************************
5* Copyright (C) 1997-2014, International Business Machines
6* Corporation and others. All Rights Reserved.
7********************************************************************************
8*
9* File CALENDAR.H
10*
11* Modification History:
12*
13* Date Name Description
14* 04/22/97 aliu Expanded and corrected comments and other header
15* contents.
16* 05/01/97 aliu Made equals(), before(), after() arguments const.
17* 05/20/97 aliu Replaced fAreFieldsSet with fAreFieldsInSync and
18* fAreAllFieldsSet.
19* 07/27/98 stephen Sync up with JDK 1.2
20* 11/15/99 weiv added YEAR_WOY and DOW_LOCAL
21* to EDateFields
22* 8/19/2002 srl Removed Javaisms
23* 11/07/2003 srl Update, clean up documentation.
24********************************************************************************
25*/
26
27#ifndef CALENDAR_H
28#define CALENDAR_H
29
30#include "unicode/utypes.h"
31
32#if U_SHOW_CPLUSPLUS_API
33
38#if !UCONFIG_NO_FORMATTING
39
40#include "unicode/uobject.h"
41#include "unicode/locid.h"
42#include "unicode/timezone.h"
43#include "unicode/ucal.h"
44#include "unicode/umisc.h"
45
46U_NAMESPACE_BEGIN
47
48class ICUServiceFactory;
49
50// Do not conditionalize the following with #ifndef U_HIDE_INTERNAL_API,
51// it is a return type for a virtual method (@internal)
55 typedef int32_t UFieldResolutionTable[12][8];
56
57class BasicTimeZone;
189 class U_I18N_API Calendar : public UObject {
190public:
191#ifndef U_FORCE_HIDE_DEPRECATED_API
198 enum EDateFields {
199#ifndef U_HIDE_DEPRECATED_API
200/*
201 * ERA may be defined on other platforms. To avoid any potential problems undefined it here.
202 */
203#ifdef ERA
204#undef ERA
205#endif
206 ERA, // Example: 0..1
207 YEAR, // Example: 1..big number
208 MONTH, // Example: 0..11
209 WEEK_OF_YEAR, // Example: 1..53
210 WEEK_OF_MONTH, // Example: 1..4
211 DATE, // Example: 1..31
212 DAY_OF_YEAR, // Example: 1..365
213 DAY_OF_WEEK, // Example: 1..7
214 DAY_OF_WEEK_IN_MONTH, // Example: 1..4, may be specified as -1
215 AM_PM, // Example: 0..1
216 HOUR, // Example: 0..11
217 HOUR_OF_DAY, // Example: 0..23
218 MINUTE, // Example: 0..59
219 SECOND, // Example: 0..59
220 MILLISECOND, // Example: 0..999
221 ZONE_OFFSET, // Example: -12*U_MILLIS_PER_HOUR..12*U_MILLIS_PER_HOUR
222 DST_OFFSET, // Example: 0 or U_MILLIS_PER_HOUR
223 YEAR_WOY, // 'Y' Example: 1..big number - Year of Week of Year
224 DOW_LOCAL, // 'e' Example: 1..7 - Day of Week / Localized
225
226 EXTENDED_YEAR,
227 JULIAN_DAY,
228 MILLISECONDS_IN_DAY,
229 IS_LEAP_MONTH,
230
231 FIELD_COUNT = UCAL_FIELD_COUNT // See ucal.h for other fields.
232#endif /* U_HIDE_DEPRECATED_API */
233 };
234#endif // U_FORCE_HIDE_DEPRECATED_API
235
236#ifndef U_HIDE_DEPRECATED_API
243 enum EDaysOfWeek {
244 SUNDAY = 1,
245 MONDAY,
246 TUESDAY,
247 WEDNESDAY,
248 THURSDAY,
249 FRIDAY,
250 SATURDAY
251 };
252
257 enum EMonths {
258 JANUARY,
259 FEBRUARY,
260 MARCH,
261 APRIL,
262 MAY,
263 JUNE,
264 JULY,
265 AUGUST,
266 SEPTEMBER,
267 OCTOBER,
268 NOVEMBER,
269 DECEMBER,
270 UNDECIMBER
271 };
272
277 enum EAmpm {
278 AM,
279 PM
280 };
281#endif /* U_HIDE_DEPRECATED_API */
282
287 virtual ~Calendar();
288
295 virtual Calendar* clone() const = 0;
296
308 static Calendar* U_EXPORT2 createInstance(UErrorCode& success);
309
322 static Calendar* U_EXPORT2 createInstance(TimeZone* zoneToAdopt, UErrorCode& success);
323
335 static Calendar* U_EXPORT2 createInstance(const TimeZone& zone, UErrorCode& success);
336
347 static Calendar* U_EXPORT2 createInstance(const Locale& aLocale, UErrorCode& success);
348
362 static Calendar* U_EXPORT2 createInstance(TimeZone* zoneToAdopt, const Locale& aLocale, UErrorCode& success);
363
376 static Calendar* U_EXPORT2 createInstance(const TimeZone& zone, const Locale& aLocale, UErrorCode& success);
377
387 static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
388
389
406 static StringEnumeration* U_EXPORT2 getKeywordValuesForLocale(const char* key,
407 const Locale& locale, UBool commonlyUsed, UErrorCode& status);
408
416 static UDate U_EXPORT2 getNow();
417
431 inline UDate getTime(UErrorCode& status) const { return getTimeInMillis(status); }
432
443 inline void setTime(UDate date, UErrorCode& status) { setTimeInMillis(date, status); }
444
456 virtual bool operator==(const Calendar& that) const;
457
466 bool operator!=(const Calendar& that) const {return !operator==(that);}
467
478 virtual UBool isEquivalentTo(const Calendar& other) const;
479
494 UBool equals(const Calendar& when, UErrorCode& status) const;
495
509 UBool before(const Calendar& when, UErrorCode& status) const;
510
524 UBool after(const Calendar& when, UErrorCode& status) const;
525
526#ifndef U_FORCE_HIDE_DEPRECATED_API
547 virtual void add(EDateFields field, int32_t amount, UErrorCode& status);
548#endif // U_FORCE_HIDE_DEPRECATED_API
549
570 virtual void add(UCalendarDateFields field, int32_t amount, UErrorCode& status);
571
572#ifndef U_HIDE_DEPRECATED_API
605 inline void roll(EDateFields field, UBool up, UErrorCode& status);
606#endif /* U_HIDE_DEPRECATED_API */
607
640 inline void roll(UCalendarDateFields field, UBool up, UErrorCode& status);
641
642#ifndef U_FORCE_HIDE_DEPRECATED_API
674 virtual void roll(EDateFields field, int32_t amount, UErrorCode& status);
675#endif // U_FORCE_HIDE_DEPRECATED_API
676
708 virtual void roll(UCalendarDateFields field, int32_t amount, UErrorCode& status);
709
710#ifndef U_FORCE_HIDE_DEPRECATED_API
766 virtual int32_t fieldDifference(UDate when, EDateFields field, UErrorCode& status);
767#endif // U_FORCE_HIDE_DEPRECATED_API
768
824 virtual int32_t fieldDifference(UDate when, UCalendarDateFields field, UErrorCode& status);
825
834 void adoptTimeZone(TimeZone* value);
835
843 void setTimeZone(const TimeZone& zone);
844
853 const TimeZone& getTimeZone() const;
854
863 TimeZone* orphanTimeZone();
864
873 virtual UBool inDaylightTime(UErrorCode& status) const;
874
887 void setLenient(UBool lenient);
888
895 UBool isLenient() const;
896
917 void setRepeatedWallTimeOption(UCalendarWallTimeOption option);
918
928 UCalendarWallTimeOption getRepeatedWallTimeOption() const;
929
951 void setSkippedWallTimeOption(UCalendarWallTimeOption option);
952
963 UCalendarWallTimeOption getSkippedWallTimeOption() const;
964
971 void setFirstDayOfWeek(UCalendarDaysOfWeek value);
972
973#ifndef U_HIDE_DEPRECATED_API
980 EDaysOfWeek getFirstDayOfWeek() const;
981#endif /* U_HIDE_DEPRECATED_API */
982
990 UCalendarDaysOfWeek getFirstDayOfWeek(UErrorCode &status) const;
991
1001 void setMinimalDaysInFirstWeek(uint8_t value);
1002
1012 uint8_t getMinimalDaysInFirstWeek() const;
1013
1014#ifndef U_FORCE_HIDE_DEPRECATED_API
1023 virtual int32_t getMinimum(EDateFields field) const;
1024#endif // U_FORCE_HIDE_DEPRECATED_API
1025
1034 virtual int32_t getMinimum(UCalendarDateFields field) const;
1035
1036#ifndef U_FORCE_HIDE_DEPRECATED_API
1045 virtual int32_t getMaximum(EDateFields field) const;
1046#endif // U_FORCE_HIDE_DEPRECATED_API
1047
1056 virtual int32_t getMaximum(UCalendarDateFields field) const;
1057
1058#ifndef U_FORCE_HIDE_DEPRECATED_API
1067 virtual int32_t getGreatestMinimum(EDateFields field) const;
1068#endif // U_FORCE_HIDE_DEPRECATED_API
1069
1078 virtual int32_t getGreatestMinimum(UCalendarDateFields field) const;
1079
1080#ifndef U_FORCE_HIDE_DEPRECATED_API
1089 virtual int32_t getLeastMaximum(EDateFields field) const;
1090#endif // U_FORCE_HIDE_DEPRECATED_API
1091
1100 virtual int32_t getLeastMaximum(UCalendarDateFields field) const;
1101
1102#ifndef U_HIDE_DEPRECATED_API
1117 int32_t getActualMinimum(EDateFields field, UErrorCode& status) const;
1118#endif /* U_HIDE_DEPRECATED_API */
1119
1134 virtual int32_t getActualMinimum(UCalendarDateFields field, UErrorCode& status) const;
1135
1152 virtual int32_t getActualMaximum(UCalendarDateFields field, UErrorCode& status) const;
1153
1167 int32_t get(UCalendarDateFields field, UErrorCode& status) const;
1168
1177 UBool isSet(UCalendarDateFields field) const;
1178
1186 void set(UCalendarDateFields field, int32_t value);
1187
1198 void set(int32_t year, int32_t month, int32_t date);
1199
1212 void set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute);
1213
1227 void set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, int32_t second);
1228
1235 void clear();
1236
1246 void clear(UCalendarDateFields field);
1247
1263 virtual UClassID getDynamicClassID() const override = 0;
1264
1297 virtual const char * getType() const = 0;
1298
1315 virtual UCalendarWeekdayType getDayOfWeekType(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const;
1316
1331 virtual int32_t getWeekendTransition(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const;
1332
1342 virtual UBool isWeekend(UDate date, UErrorCode &status) const;
1343
1351 virtual UBool isWeekend() const;
1352
1367 virtual bool inTemporalLeapYear(UErrorCode& status) const;
1368
1387 virtual const char* getTemporalMonthCode(UErrorCode& status) const;
1388
1408 virtual void setTemporalMonthCode(const char* temporalMonth, UErrorCode& status);
1409
1410protected:
1411
1420 Calendar(UErrorCode& success);
1421
1428 Calendar(const Calendar& source);
1429
1436 Calendar& operator=(const Calendar& right);
1437
1448 Calendar(TimeZone* zone, const Locale& aLocale, UErrorCode& success);
1449
1459 Calendar(const TimeZone& zone, const Locale& aLocale, UErrorCode& success);
1460
1469 virtual void computeTime(UErrorCode& status);
1470
1482 virtual void computeFields(UErrorCode& status);
1483
1493 double getTimeInMillis(UErrorCode& status) const;
1494
1503 void setTimeInMillis( double millis, UErrorCode& status );
1504
1514 void complete(UErrorCode& status);
1515
1516#ifndef U_HIDE_DEPRECATED_API
1525 inline int32_t internalGet(EDateFields field) const {return fFields[field];}
1526#endif /* U_HIDE_DEPRECATED_API */
1527
1528#ifndef U_HIDE_INTERNAL_API
1539 inline int32_t internalGet(UCalendarDateFields field, int32_t defaultValue) const {return fStamp[field]>kUnset ? fFields[field] : defaultValue;}
1540
1549 inline int32_t internalGet(UCalendarDateFields field) const {return fFields[field];}
1550
1556 virtual bool isEra0CountingBackward() const { return false; }
1557#endif /* U_HIDE_INTERNAL_API */
1558
1568 virtual int32_t internalGetMonth(UErrorCode& status) const;
1569
1583 virtual int32_t internalGetMonth(int32_t defaultValue, UErrorCode& status) const;
1584
1585#ifndef U_HIDE_DEPRECATED_API
1595 void internalSet(EDateFields field, int32_t value);
1596#endif /* U_HIDE_DEPRECATED_API */
1597
1607 inline void internalSet(UCalendarDateFields field, int32_t value);
1608
1615 virtual void prepareGetActual(UCalendarDateFields field, UBool isMinimum, UErrorCode &status);
1616
1621 enum ELimitType {
1622#ifndef U_HIDE_INTERNAL_API
1623 UCAL_LIMIT_MINIMUM = 0,
1624 UCAL_LIMIT_GREATEST_MINIMUM,
1625 UCAL_LIMIT_LEAST_MAXIMUM,
1626 UCAL_LIMIT_MAXIMUM,
1627 UCAL_LIMIT_COUNT
1628#endif /* U_HIDE_INTERNAL_API */
1629 };
1630
1652 virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const = 0;
1653
1661 virtual int32_t getLimit(UCalendarDateFields field, ELimitType limitType) const;
1662
1678 virtual int64_t handleComputeMonthStart(int32_t eyear, int32_t month,
1679 UBool useMonth, UErrorCode& status) const = 0;
1680
1688 virtual int32_t handleGetMonthLength(int32_t extendedYear, int32_t month, UErrorCode& status) const ;
1689
1697 virtual int32_t handleGetYearLength(int32_t eyear) const;
1698
1699
1709 virtual int32_t handleGetExtendedYear(UErrorCode& status) = 0;
1710
1720 virtual int32_t handleComputeJulianDay(UCalendarDateFields bestField, UErrorCode &status);
1721
1730 virtual int32_t handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy, UErrorCode& status);
1731
1738 virtual void validateField(UCalendarDateFields field, UErrorCode &status);
1739
1740#ifndef U_HIDE_INTERNAL_API
1748 int32_t computeJulianDay(UErrorCode &status);
1749
1757 double computeMillisInDay();
1758
1768 int32_t computeZoneOffset(double millis, double millisInDay, UErrorCode &ec);
1769
1770
1779 int32_t newestStamp(UCalendarDateFields start, UCalendarDateFields end, int32_t bestSoFar) const;
1780
1787 static constexpr int32_t kResolveSTOP = -1;
1797 static constexpr int32_t kResolveRemap = 32;
1798
1804 static const UFieldResolutionTable kDatePrecedence[];
1805
1811 static const UFieldResolutionTable kYearPrecedence[];
1812
1818 static const UFieldResolutionTable kDOWPrecedence[];
1819
1825 static const UFieldResolutionTable kMonthPrecedence[];
1826
1854 UCalendarDateFields resolveFields(const UFieldResolutionTable *precedenceTable) const;
1855#endif /* U_HIDE_INTERNAL_API */
1856
1857
1861 virtual const UFieldResolutionTable* getFieldResolutionTable() const;
1862
1863#ifndef U_HIDE_INTERNAL_API
1869 UCalendarDateFields newerField(UCalendarDateFields defaultField, UCalendarDateFields alternateField) const;
1870#endif /* U_HIDE_INTERNAL_API */
1871
1872
1873private:
1882 int32_t getActualHelper(UCalendarDateFields field, int32_t startValue, int32_t endValue, UErrorCode &status) const;
1883
1884
1885protected:
1890 UBool fIsTimeSet;
1891
1902 UBool fAreFieldsSet;
1903
1909 UBool fAreAllFieldsSet;
1910
1918 UBool fAreFieldsVirtuallySet;
1919
1926 UDate internalGetTime() const { return fTime; }
1927
1935 void internalSetTime(UDate time) { fTime = time; }
1936
1941 int32_t fFields[UCAL_FIELD_COUNT];
1942
1943#ifndef U_FORCE_HIDE_DEPRECATED_API
1948 UBool fIsSet[UCAL_FIELD_COUNT];
1949#endif // U_FORCE_HIDE_DEPRECATED_API
1950
1954 enum {
1955 kUnset = 0,
1956 kInternallySet,
1957 kMinimumUserStamp
1958 };
1959
1966 int32_t fStamp[UCAL_FIELD_COUNT];
1967
1992 virtual void handleComputeFields(int32_t julianDay, UErrorCode &status);
1993
1994#ifndef U_HIDE_INTERNAL_API
2000 int32_t getGregorianYear() const {
2001 return fGregorianYear;
2002 }
2003
2009 int32_t getGregorianMonth() const {
2010 return fGregorianMonth;
2011 }
2012
2018 int32_t getGregorianDayOfYear() const {
2019 return fGregorianDayOfYear;
2020 }
2021
2027 int32_t getGregorianDayOfMonth() const {
2028 return fGregorianDayOfMonth;
2029 }
2030#endif /* U_HIDE_INTERNAL_API */
2031
2040 virtual int32_t getDefaultMonthInYear(int32_t eyear, UErrorCode& status);
2041
2042
2052 virtual int32_t getDefaultDayInMonth(int32_t eyear, int32_t month, UErrorCode& status);
2053
2054 //-------------------------------------------------------------------------
2055 // Protected utility methods for use by subclasses. These are very handy
2056 // for implementing add, roll, and computeFields.
2057 //-------------------------------------------------------------------------
2058
2088 virtual void pinField(UCalendarDateFields field, UErrorCode& status);
2089
2133 int32_t weekNumber(int32_t desiredDay, int32_t dayOfPeriod, int32_t dayOfWeek);
2134
2135
2136#ifndef U_HIDE_INTERNAL_API
2167 inline int32_t weekNumber(int32_t dayOfPeriod, int32_t dayOfWeek);
2168
2173 int32_t getLocalDOW(UErrorCode& status);
2174#endif /* U_HIDE_INTERNAL_API */
2175
2176private:
2177
2181 int32_t fNextStamp;// = MINIMUM_USER_STAMP;
2182
2187 void recalculateStamp();
2188
2192 UDate fTime;
2193
2197 UBool fLenient;
2198
2203 TimeZone* fZone;
2204
2209 UCalendarWallTimeOption fRepeatedWallTime;
2210
2215 UCalendarWallTimeOption fSkippedWallTime;
2216
2225 UCalendarDaysOfWeek fFirstDayOfWeek;
2226 uint8_t fMinimalDaysInFirstWeek;
2227 UCalendarDaysOfWeek fWeekendOnset;
2228 int32_t fWeekendOnsetMillis;
2229 UCalendarDaysOfWeek fWeekendCease;
2230 int32_t fWeekendCeaseMillis;
2231
2242 void setWeekData(const Locale& desiredLocale, const char *type, UErrorCode& success);
2243
2253 void updateTime(UErrorCode& status);
2254
2260 int32_t fGregorianYear;
2261
2267 int32_t fGregorianMonth;
2268
2274 int32_t fGregorianDayOfYear;
2275
2281 int32_t fGregorianDayOfMonth;
2282
2283 /* calculations */
2284
2291 void computeGregorianAndDOWFields(int32_t julianDay, UErrorCode &ec);
2292
2293protected:
2294
2302 void computeGregorianFields(int32_t julianDay, UErrorCode &ec);
2303
2304private:
2305
2326 void computeWeekFields(UErrorCode &ec);
2327
2328
2336 void validateFields(UErrorCode &status);
2337
2345 void validateField(UCalendarDateFields field, int32_t min, int32_t max, UErrorCode& status);
2346
2347 protected:
2348#ifndef U_HIDE_INTERNAL_API
2358 static uint8_t julianDayToDayOfWeek(int32_t julian);
2359#endif /* U_HIDE_INTERNAL_API */
2360
2361 private:
2362 char validLocale[ULOC_FULLNAME_CAPACITY];
2363 char actualLocale[ULOC_FULLNAME_CAPACITY];
2364
2365 public:
2366#if !UCONFIG_NO_SERVICE
2371#ifndef U_HIDE_INTERNAL_API
2378 static StringEnumeration* getAvailableLocales();
2379
2393 static URegistryKey registerFactory(ICUServiceFactory* toAdopt, UErrorCode& status);
2394
2410 static UBool unregister(URegistryKey key, UErrorCode& status);
2411#endif /* U_HIDE_INTERNAL_API */
2412
2417 friend class CalendarFactory;
2418
2423 friend class CalendarService;
2424
2429 friend class DefaultCalendarFactory;
2430#endif /* !UCONFIG_NO_SERVICE */
2431
2436 virtual UBool haveDefaultCentury() const = 0;
2437
2442 virtual UDate defaultCenturyStart() const = 0;
2447 virtual int32_t defaultCenturyStartYear() const = 0;
2448
2455 Locale getLocale(ULocDataLocaleType type, UErrorCode &status) const;
2456
2462 virtual int32_t getRelatedYear(UErrorCode &status) const;
2463
2469 virtual void setRelatedYear(int32_t year);
2470
2471#ifndef U_HIDE_INTERNAL_API
2478 const char* getLocaleID(ULocDataLocaleType type, UErrorCode &status) const;
2479#endif /* U_HIDE_INTERNAL_API */
2480
2481private:
2486 BasicTimeZone* getBasicTimeZone() const;
2487
2495 UBool getImmediatePreviousZoneTransition(UDate base, UDate *transitionTime, UErrorCode& status) const;
2496
2497public:
2498#ifndef U_HIDE_INTERNAL_API
2507 static Calendar * U_EXPORT2 makeInstance(
2508 const Locale &locale, UErrorCode &status);
2509
2520 static void U_EXPORT2 getCalendarTypeFromLocale(
2521 const Locale &locale,
2522 char *typeBuffer,
2523 int32_t typeBufferSize,
2524 UErrorCode &status);
2525#endif /* U_HIDE_INTERNAL_API */
2526};
2527
2528// -------------------------------------
2529
2530inline Calendar*
2531Calendar::createInstance(TimeZone* zone, UErrorCode& errorCode)
2532{
2533 // since the Locale isn't specified, use the default locale
2534 return createInstance(zone, Locale::getDefault(), errorCode);
2535}
2536
2537// -------------------------------------
2538
2539inline void
2540Calendar::roll(UCalendarDateFields field, UBool up, UErrorCode& status)
2541{
2542 roll(field, static_cast<int32_t>(up ? +1 : -1), status);
2543}
2544
2545#ifndef U_HIDE_DEPRECATED_API
2546inline void
2547Calendar::roll(EDateFields field, UBool up, UErrorCode& status)
2548{
2549 roll(static_cast<UCalendarDateFields>(field), up, status);
2550}
2551#endif /* U_HIDE_DEPRECATED_API */
2552
2553
2554// -------------------------------------
2555
2561inline void
2562Calendar::internalSet(UCalendarDateFields field, int32_t value)
2563{
2564 fFields[field] = value;
2565 fStamp[field] = kInternallySet;
2566 fIsSet[field] = true; // Remove later
2567}
2568
2575#define DECLARE_OVERRIDE_SYSTEM_DEFAULT_CENTURY \
2576 virtual UBool haveDefaultCentury() const override; \
2577 virtual UDate defaultCenturyStart() const override; \
2578 virtual int32_t defaultCenturyStartYear() const override;
2579
2580#ifndef U_HIDE_INTERNAL_API
2581 inline int32_t Calendar::weekNumber(int32_t dayOfPeriod, int32_t dayOfWeek)
2582{
2583 return weekNumber(dayOfPeriod, dayOfPeriod, dayOfWeek);
2584}
2585#endif /* U_HIDE_INTERNAL_API */
2586
2587U_NAMESPACE_END
2588
2589#endif /* #if !UCONFIG_NO_FORMATTING */
2590
2591#endif /* U_SHOW_CPLUSPLUS_API */
2592
2593#endif // _CALENDAR
icu::BasicTimeZone
BasicTimeZone is an abstract class extending TimeZone.
Definition basictz.h:38
icu::Calendar
Calendar is an abstract base class for converting between a UDate object and a set of integer fields ...
Definition calendar.h:189
icu::Calendar::after
UBool after(const Calendar &when, UErrorCode &status) const
Returns true if this Calendar's current time is after "when"'s current time.
icu::Calendar::getGreatestMinimum
virtual int32_t getGreatestMinimum(EDateFields field) const
Gets the highest minimum value for the given field if varies.
icu::Calendar::fIsTimeSet
UBool fIsTimeSet
The flag which indicates if the current time is set in the calendar.
Definition calendar.h:1890
icu::Calendar::setTime
void setTime(UDate date, UErrorCode &status)
Sets this Calendar's current time with the given UDate.
Definition calendar.h:443
icu::Calendar::setSkippedWallTimeOption
void setSkippedWallTimeOption(UCalendarWallTimeOption option)
Sets the behavior for handling skipped wall time at positive time zone offset transitions.
icu::Calendar::internalGet
int32_t internalGet(UCalendarDateFields field) const
Gets the value for a given time field.
Definition calendar.h:1549
icu::Calendar::newestStamp
int32_t newestStamp(UCalendarDateFields start, UCalendarDateFields end, int32_t bestSoFar) const
Determine the best stamp in a range.
icu::Calendar::set
void set(UCalendarDateFields field, int32_t value)
Sets the given time field with the given value.
icu::Calendar::getLocale
Locale getLocale(ULocDataLocaleType type, UErrorCode &status) const
Get the locale for this calendar object.
icu::Calendar::getTemporalMonthCode
virtual const char * getTemporalMonthCode(UErrorCode &status) const
Gets The Temporal monthCode value corresponding to the month for the date.
icu::Calendar::get
int32_t get(UCalendarDateFields field, UErrorCode &status) const
Gets the value for a given time field.
icu::Calendar::getLocalDOW
int32_t getLocalDOW(UErrorCode &status)
returns the local DOW, valid range 0..6
icu::Calendar::getMinimum
virtual int32_t getMinimum(EDateFields field) const
Gets the minimum value for the given time field.
icu::Calendar::internalGetTime
UDate internalGetTime() const
Get the current time without recomputing.
Definition calendar.h:1926
icu::Calendar::roll
virtual void roll(UCalendarDateFields field, int32_t amount, UErrorCode &status)
Time Field Rolling function.
icu::Calendar::getRepeatedWallTimeOption
UCalendarWallTimeOption getRepeatedWallTimeOption() const
Gets the behavior for handling wall time repeating multiple times at negative time zone offset transi...
icu::Calendar::fieldDifference
virtual int32_t fieldDifference(UDate when, UCalendarDateFields field, UErrorCode &status)
Return the difference between the given time and the time this calendar object is set to.
icu::Calendar::weekNumber
int32_t weekNumber(int32_t desiredDay, int32_t dayOfPeriod, int32_t dayOfWeek)
Return the week number of a day, within a period.
icu::Calendar::getDynamicClassID
virtual UClassID getDynamicClassID() const override=0
Returns a unique class ID POLYMORPHICALLY.
icu::Calendar::computeJulianDay
int32_t computeJulianDay(UErrorCode &status)
Compute the Julian day from fields.
icu::Calendar::getLeastMaximum
virtual int32_t getLeastMaximum(UCalendarDateFields field) const
Gets the lowest maximum value for the given field if varies.
icu::Calendar::createInstance
static Calendar * createInstance(UErrorCode &success)
Creates a Calendar using the default timezone and locale.
icu::Calendar::setTimeInMillis
void setTimeInMillis(double millis, UErrorCode &status)
Sets this Calendar's current time from the given long value.
icu::Calendar::createInstance
static Calendar * createInstance(const TimeZone &zone, const Locale &aLocale, UErrorCode &success)
Gets a Calendar using the given timezone and given locale.
icu::Calendar::complete
void complete(UErrorCode &status)
Recomputes the current time from currently set fields, and then fills in any unset fields in the time...
icu::Calendar::getCalendarTypeFromLocale
static void getCalendarTypeFromLocale(const Locale &locale, char *typeBuffer, int32_t typeBufferSize, UErrorCode &status)
Get the calendar type for given locale.
icu::Calendar::julianDayToDayOfWeek
static uint8_t julianDayToDayOfWeek(int32_t julian)
Convert a quasi Julian date to the day of the week.
icu::Calendar::isSet
UBool isSet(UCalendarDateFields field) const
Determines if the given time field has a value set.
icu::Calendar::setLenient
void setLenient(UBool lenient)
Specifies whether or not date/time interpretation is to be lenient.
icu::Calendar::handleGetExtendedYearFromWeekFields
virtual int32_t handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy, UErrorCode &status)
Subclasses must override this to convert from week fields (YEAR_WOY and WEEK_OF_YEAR) to an extended ...
icu::Calendar::getGregorianMonth
int32_t getGregorianMonth() const
Return the month (0-based) on the Gregorian calendar as computed by computeGregorianFields().
Definition calendar.h:2009
icu::Calendar::clear
void clear()
Clears the values of all the time fields, making them both unset and assigning them a value of zero.
icu::Calendar::computeGregorianFields
void computeGregorianFields(int32_t julianDay, UErrorCode &ec)
Compute the Gregorian calendar year, month, and day of month from the Julian day.
icu::Calendar::getGregorianDayOfYear
int32_t getGregorianDayOfYear() const
Return the day of year (1-based) on the Gregorian calendar as computed by computeGregorianFields().
Definition calendar.h:2018
icu::Calendar::haveDefaultCentury
virtual UBool haveDefaultCentury() const =0
icu::Calendar::EDaysOfWeek
EDaysOfWeek
Useful constant for days of week.
Definition calendar.h:243
icu::Calendar::getLeastMaximum
virtual int32_t getLeastMaximum(EDateFields field) const
Gets the lowest maximum value for the given field if varies.
icu::Calendar::~Calendar
virtual ~Calendar()
destructor
icu::Calendar::isLenient
UBool isLenient() const
Tells whether date/time interpretation is to be lenient.
icu::Calendar::EDateFields
EDateFields
Field IDs for date and time.
Definition calendar.h:198
icu::Calendar::getFirstDayOfWeek
EDaysOfWeek getFirstDayOfWeek() const
Gets what the first day of the week is; e.g., Sunday in US, Monday in France.
icu::Calendar::handleComputeMonthStart
virtual int64_t handleComputeMonthStart(int32_t eyear, int32_t month, UBool useMonth, UErrorCode &status) const =0
Return the Julian day number of day before the first day of the given month in the given extended yea...
icu::Calendar::operator==
virtual bool operator==(const Calendar &that) const
Compares the equality of two Calendar objects.
icu::Calendar::roll
virtual void roll(EDateFields field, int32_t amount, UErrorCode &status)
Time Field Rolling function.
icu::Calendar::createInstance
static Calendar * createInstance(const Locale &aLocale, UErrorCode &success)
Creates a Calendar using the default timezone and the given locale.
icu::Calendar::makeInstance
static Calendar * makeInstance(const Locale &locale, UErrorCode &status)
Creates a new Calendar from a Locale for the cache.
icu::Calendar::ELimitType
ELimitType
Limit enums.
Definition calendar.h:1621
icu::Calendar::Calendar
Calendar(UErrorCode &success)
Constructs a Calendar with the default time zone as returned by TimeZone::createInstance(),...
icu::Calendar::equals
UBool equals(const Calendar &when, UErrorCode &status) const
Compares the Calendar time, whereas Calendar::operator== compares the equality of Calendar objects.
icu::Calendar::operator!=
bool operator!=(const Calendar &that) const
Compares the inequality of two Calendar objects.
Definition calendar.h:466
icu::Calendar::getRelatedYear
virtual int32_t getRelatedYear(UErrorCode &status) const
icu::Calendar::clone
virtual Calendar * clone() const =0
Create and return a polymorphic copy of this calendar.
icu::Calendar::clear
void clear(UCalendarDateFields field)
Clears the value in the given time field, both making it unset and assigning it a value of zero.
icu::Calendar::handleComputeFields
virtual void handleComputeFields(int32_t julianDay, UErrorCode &status)
Subclasses may override this method to compute several fields specific to each calendar system.
icu::Calendar::setTemporalMonthCode
virtual void setTemporalMonthCode(const char *temporalMonth, UErrorCode &status)
Sets The Temporal monthCode which is a string identifier that starts with the literal grapheme "M" fo...
icu::Calendar::getKeywordValuesForLocale
static StringEnumeration * getKeywordValuesForLocale(const char *key, const Locale &locale, UBool commonlyUsed, UErrorCode &status)
Given a key and a locale, returns an array of string values in a preferred order that would make a di...
icu::Calendar::fAreFieldsVirtuallySet
UBool fAreFieldsVirtuallySet
True if all fields have been virtually set, but have not yet been computed.
Definition calendar.h:1918
icu::Calendar::getTimeInMillis
double getTimeInMillis(UErrorCode &status) const
Gets this Calendar's current time as a long.
icu::Calendar::getFirstDayOfWeek
UCalendarDaysOfWeek getFirstDayOfWeek(UErrorCode &status) const
Gets what the first day of the week is; e.g., Sunday in US, Monday in France.
icu::Calendar::operator=
Calendar & operator=(const Calendar &right)
Default assignment operator.
icu::Calendar::createInstance
static Calendar * createInstance(TimeZone *zoneToAdopt, const Locale &aLocale, UErrorCode &success)
Creates a Calendar using the given timezone and given locale.
icu::Calendar::orphanTimeZone
TimeZone * orphanTimeZone()
Returns the time zone owned by this calendar.
icu::Calendar::internalGet
int32_t internalGet(EDateFields field) const
Gets the value for a given time field.
Definition calendar.h:1525
icu::Calendar::registerFactory
static URegistryKey registerFactory(ICUServiceFactory *toAdopt, UErrorCode &status)
Register a new Calendar factory.
icu::Calendar::getDefaultMonthInYear
virtual int32_t getDefaultMonthInYear(int32_t eyear, UErrorCode &status)
Called by computeJulianDay.
icu::Calendar::getType
virtual const char * getType() const =0
Returns the calendar type name string for this Calendar object.
icu::Calendar::fAreFieldsSet
UBool fAreFieldsSet
True if the fields are in sync with the currently set time of this Calendar.
Definition calendar.h:1902
icu::Calendar::Calendar
Calendar(const Calendar &source)
Copy constructor.
icu::Calendar::computeFields
virtual void computeFields(UErrorCode &status)
Converts GMT as milliseconds to time field values.
icu::Calendar::getNow
static UDate getNow()
Returns the current UTC (GMT) time measured in milliseconds since 0:00:00 on 1/1/70 (derived from the...
icu::Calendar::getActualMaximum
virtual int32_t getActualMaximum(UCalendarDateFields field, UErrorCode &status) const
Return the maximum value that this field could have, given the current date.
icu::Calendar::getAvailableLocales
static const Locale * getAvailableLocales(int32_t &count)
Returns a list of the locales for which Calendars are installed.
icu::Calendar::prepareGetActual
virtual void prepareGetActual(UCalendarDateFields field, UBool isMinimum, UErrorCode &status)
Prepare this calendar for computing the actual minimum or maximum.
icu::Calendar::adoptTimeZone
void adoptTimeZone(TimeZone *value)
Sets the calendar's time zone to be the one passed in.
icu::Calendar::before
UBool before(const Calendar &when, UErrorCode &status) const
Returns true if this Calendar's current time is before "when"'s current time.
icu::Calendar::defaultCenturyStartYear
virtual int32_t defaultCenturyStartYear() const =0
icu::Calendar::setMinimalDaysInFirstWeek
void setMinimalDaysInFirstWeek(uint8_t value)
Sets what the minimal days required in the first week of the year are; For example,...
icu::Calendar::inDaylightTime
virtual UBool inDaylightTime(UErrorCode &status) const
Queries if the current date for this Calendar is in Daylight Savings Time.
icu::Calendar::getLocaleID
const char * getLocaleID(ULocDataLocaleType type, UErrorCode &status) const
Get the locale for this calendar object.
icu::Calendar::defaultCenturyStart
virtual UDate defaultCenturyStart() const =0
icu::Calendar::getMaximum
virtual int32_t getMaximum(UCalendarDateFields field) const
Gets the maximum value for the given time field.
icu::Calendar::pinField
virtual void pinField(UCalendarDateFields field, UErrorCode &status)
Adjust the specified field so that it is within the allowable range for the date to which this calend...
icu::Calendar::getGregorianYear
int32_t getGregorianYear() const
Return the extended year on the Gregorian calendar as computed by computeGregorianFields().
Definition calendar.h:2000
icu::Calendar::internalGet
int32_t internalGet(UCalendarDateFields field, int32_t defaultValue) const
Gets the value for a given time field.
Definition calendar.h:1539
icu::Calendar::internalSetTime
void internalSetTime(UDate time)
Set the current time without affecting flags or fields.
Definition calendar.h:1935
icu::Calendar::getActualMinimum
virtual int32_t getActualMinimum(UCalendarDateFields field, UErrorCode &status) const
Return the minimum value that this field could have, given the current date.
icu::Calendar::getTime
UDate getTime(UErrorCode &status) const
Gets this Calendar's time as milliseconds.
Definition calendar.h:431
icu::Calendar::fAreAllFieldsSet
UBool fAreAllFieldsSet
True if all of the fields have been set.
Definition calendar.h:1909
icu::Calendar::handleGetLimit
virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const =0
Subclass API for defining limits of different types.
icu::Calendar::getWeekendTransition
virtual int32_t getWeekendTransition(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const
Returns the time during the day at which the weekend begins or ends in this calendar system.
icu::Calendar::getDefaultDayInMonth
virtual int32_t getDefaultDayInMonth(int32_t eyear, int32_t month, UErrorCode &status)
Called by computeJulianDay.
icu::Calendar::getActualMinimum
int32_t getActualMinimum(EDateFields field, UErrorCode &status) const
Return the minimum value that this field could have, given the current date.
icu::Calendar::internalGetMonth
virtual int32_t internalGetMonth(UErrorCode &status) const
Use this function instead of internalGet(UCAL_MONTH).
icu::Calendar::newerField
UCalendarDateFields newerField(UCalendarDateFields defaultField, UCalendarDateFields alternateField) const
Return the field that is newer, either defaultField, or alternateField.
icu::Calendar::isEquivalentTo
virtual UBool isEquivalentTo(const Calendar &other) const
Returns true if the given Calendar object is equivalent to this one.
icu::Calendar::getTimeZone
const TimeZone & getTimeZone() const
Returns a reference to the time zone owned by this calendar.
icu::Calendar::computeMillisInDay
double computeMillisInDay()
Compute the milliseconds in the day from the fields.
icu::Calendar::isEra0CountingBackward
virtual bool isEra0CountingBackward() const
The year in this calendar is counting from 1 backward if the era is 0.
Definition calendar.h:1556
icu::Calendar::getGreatestMinimum
virtual int32_t getGreatestMinimum(UCalendarDateFields field) const
Gets the highest minimum value for the given field if varies.
icu::Calendar::Calendar
Calendar(const TimeZone &zone, const Locale &aLocale, UErrorCode &success)
Constructs a Calendar with the given time zone and locale.
icu::Calendar::createInstance
static Calendar * createInstance(const TimeZone &zone, UErrorCode &success)
Creates a Calendar using the given timezone and the default locale.
icu::Calendar::setTimeZone
void setTimeZone(const TimeZone &zone)
Sets the calendar's time zone to be the same as the one passed in.
icu::Calendar::EAmpm
EAmpm
Useful constants for hour in 12-hour clock.
Definition calendar.h:277
icu::Calendar::internalSet
void internalSet(EDateFields field, int32_t value)
Sets the value for a given time field.
icu::Calendar::setRelatedYear
virtual void setRelatedYear(int32_t year)
icu::Calendar::getMinimum
virtual int32_t getMinimum(UCalendarDateFields field) const
Gets the minimum value for the given time field.
icu::Calendar::resolveFields
UCalendarDateFields resolveFields(const UFieldResolutionTable *precedenceTable) const
Given a precedence table, return the newest field combination in the table, or UCAL_FIELD_COUNT if no...
icu::Calendar::handleComputeJulianDay
virtual int32_t handleComputeJulianDay(UCalendarDateFields bestField, UErrorCode &status)
Subclasses may override this.
icu::Calendar::setRepeatedWallTimeOption
void setRepeatedWallTimeOption(UCalendarWallTimeOption option)
Sets the behavior for handling wall time repeating multiple times at negative time zone offset transi...
icu::Calendar::internalGetMonth
virtual int32_t internalGetMonth(int32_t defaultValue, UErrorCode &status) const
Use this function instead of internalGet(UCAL_MONTH, defaultValue).
icu::Calendar::setFirstDayOfWeek
void setFirstDayOfWeek(UCalendarDaysOfWeek value)
Sets what the first day of the week is; e.g., Sunday in US, Monday in France.
icu::Calendar::isWeekend
virtual UBool isWeekend() const
Returns true if this Calendar's current date-time is in the weekend in this calendar system.
icu::Calendar::inTemporalLeapYear
virtual bool inTemporalLeapYear(UErrorCode &status) const
Returns true if the date is in a leap year.
icu::Calendar::set
void set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, int32_t second)
Sets the values for the fields YEAR, MONTH, DATE, HOUR_OF_DAY, MINUTE, and SECOND.
icu::Calendar::handleGetMonthLength
virtual int32_t handleGetMonthLength(int32_t extendedYear, int32_t month, UErrorCode &status) const
Return the number of days in the given month of the given extended year of this calendar system.
icu::Calendar::getDayOfWeekType
virtual UCalendarWeekdayType getDayOfWeekType(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const
Returns whether the given day of the week is a weekday, a weekend day, or a day that transitions from...
icu::Calendar::handleGetYearLength
virtual int32_t handleGetYearLength(int32_t eyear) const
Return the number of days in the given extended year of this calendar system.
icu::Calendar::EMonths
EMonths
Useful constants for month.
Definition calendar.h:257
icu::Calendar::computeTime
virtual void computeTime(UErrorCode &status)
Converts Calendar's time field values to GMT as milliseconds.
icu::Calendar::getAvailableLocales
static StringEnumeration * getAvailableLocales()
INTERNAL FOR 2.6 – Registration.
icu::Calendar::getLimit
virtual int32_t getLimit(UCalendarDateFields field, ELimitType limitType) const
Return a limit for a field.
icu::Calendar::isWeekend
virtual UBool isWeekend(UDate date, UErrorCode &status) const
Returns true if the given UDate is in the weekend in this calendar system.
icu::Calendar::getMaximum
virtual int32_t getMaximum(EDateFields field) const
Gets the maximum value for the given time field.
icu::Calendar::handleGetExtendedYear
virtual int32_t handleGetExtendedYear(UErrorCode &status)=0
Return the extended year defined by the current fields.
icu::Calendar::getSkippedWallTimeOption
UCalendarWallTimeOption getSkippedWallTimeOption() const
Gets the behavior for handling skipped wall time at positive time zone offset transitions.
icu::Calendar::add
virtual void add(UCalendarDateFields field, int32_t amount, UErrorCode &status)
UDate Arithmetic function.
icu::Calendar::unregister
static UBool unregister(URegistryKey key, UErrorCode &status)
Unregister a previously-registered CalendarFactory using the key returned from the register call.
icu::Calendar::validateField
virtual void validateField(UCalendarDateFields field, UErrorCode &status)
Validate a single field of this calendar.
icu::Calendar::getFieldResolutionTable
virtual const UFieldResolutionTable * getFieldResolutionTable() const
icu::Calendar::add
virtual void add(EDateFields field, int32_t amount, UErrorCode &status)
UDate Arithmetic function.
icu::Calendar::getGregorianDayOfMonth
int32_t getGregorianDayOfMonth() const
Return the day of month (1-based) on the Gregorian calendar as computed by computeGregorianFields().
Definition calendar.h:2027
icu::Calendar::getMinimalDaysInFirstWeek
uint8_t getMinimalDaysInFirstWeek() const
Gets what the minimal days required in the first week of the year are; e.g., if the first week is def...
icu::Calendar::Calendar
Calendar(TimeZone *zone, const Locale &aLocale, UErrorCode &success)
Constructs a Calendar with the given time zone and locale.
icu::Calendar::computeZoneOffset
int32_t computeZoneOffset(double millis, double millisInDay, UErrorCode &ec)
This method can assume EXTENDED_YEAR has been set.
icu::Calendar::set
void set(int32_t year, int32_t month, int32_t date)
Sets the values for the fields YEAR, MONTH, and DATE.
icu::Calendar::set
void set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute)
Sets the values for the fields YEAR, MONTH, DATE, HOUR_OF_DAY, and MINUTE.
icu::Calendar::fieldDifference
virtual int32_t fieldDifference(UDate when, EDateFields field, UErrorCode &status)
Return the difference between the given time and the time this calendar object is set to.
icu::Locale
A Locale object represents a specific geographical, political, or cultural region.
Definition locid.h:195
icu::StringEnumeration
Base class for 'pure' C++ implementations of uenum api.
Definition strenum.h:61
icu::TimeZone
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition timezone.h:133
icu::UObject
UObject is the common ICU "boilerplate" class.
Definition uobject.h:223
locid.h
C++ API: Locale ID object.
icu::operator==
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
icu::UFieldResolutionTable
int32_t UFieldResolutionTable[12][8]
Definition calendar.h:55
timezone.h
C++ API: TimeZone object.
ucal.h
C API: Calendar.
UCalendarDateFields
UCalendarDateFields
Possible fields in a UCalendar.
Definition ucal.h:202
UCAL_FIELD_COUNT
@ UCAL_FIELD_COUNT
One more than the highest normal UCalendarDateFields value.
Definition ucal.h:477
UCalendarWallTimeOption
UCalendarWallTimeOption
Options for handling ambiguous wall time at time zone offset transitions.
Definition ucal.h:991
UCalendarWeekdayType
UCalendarWeekdayType
Weekday types, as returned by ucal_getDayOfWeekType().
Definition ucal.h:1455
UCalendarDaysOfWeek
UCalendarDaysOfWeek
Useful constant for days of week.
Definition ucal.h:502
ULOC_FULLNAME_CAPACITY
#define ULOC_FULLNAME_CAPACITY
Useful constant for the maximum size of the whole locale ID (including the terminating NULL and all k...
Definition uloc.h:264
ULocDataLocaleType
ULocDataLocaleType
Constants for *_getLocale() Allow user to select whether she wants information on requested,...
Definition uloc.h:338
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition umachine.h:247
umisc.h
C API: Miscellaneous definitions.
URegistryKey
const void * URegistryKey
Opaque type returned by registerInstance, registerFactory and unregister for service registration.
Definition umisc.h:57
uobject.h
C++ API: Common ICU base class UObject.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition uobject.h:96
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition utypes.h:430
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition utypes.h:316
UDate
double UDate
Date and Time data type.
Definition utypes.h:218