UDate object
* and a set of integer fields such as UCAL_YEAR, UCAL_MONTH,
* UCAL_DAY, UCAL_HOUR, and so on.
* (A UDate object represents a specific instant in
* time with millisecond precision. See UDate
* for information about the UDate .)
*
*
* Types of UCalendar interpret a UDate
* according to the rules of a specific calendar system. The U_STABLE
* provides the enum UCalendarType with UCAL_TRADITIONAL and
* UCAL_GREGORIAN.
*
* Like other locale-sensitive C API, calendar API provides a
* function, ucal_open(), which returns a pointer to
* UCalendar whose time fields have been initialized
* with the current date and time. We need to specify the type of
* calendar to be opened and the timezoneId.
* \htmlonly
\endhtmlonly
*
* \code
* UCalendar *caldef;
* UChar *tzId;
* UErrorCode status;
* tzId=(UChar*)malloc(sizeof(UChar) * (strlen("PST") +1) );
* u_uastrcpy(tzId, "PST");
* caldef=ucal_open(tzID, u_strlen(tzID), NULL, UCAL_TRADITIONAL, &status);
* \endcode
*
* \htmlonly\endhtmlonly
*
*
* A UCalendar object can produce all the time field values
* needed to implement the date-time formatting for a particular language
* and calendar style (for example, Japanese-Gregorian, Japanese-Traditional).
*
*
* When computing a UDate from time fields, two special circumstances
* may arise: there may be insufficient information to compute the
* UDate (such as only year and month but no day in the month),
* or there may be inconsistent information (such as "Tuesday, July 15, 1996"
* -- July 15, 1996 is actually a Monday).
*
*
* Insufficient information. The calendar will use default * information to specify the missing fields. This may vary by calendar; for * the Gregorian calendar, the default for a field is the same as that of the * start of the epoch: i.e., UCAL_YEAR = 1970, UCAL_MONTH = JANUARY, UCAL_DATE = 1, etc. * *
* Inconsistent information. If fields conflict, the calendar * will give preference to fields set more recently. For example, when * determining the day, the calendar will look for one of the following * combinations of fields. The most recent combination, as determined by the * most recently set single field, will be used. * * \htmlonly
\endhtmlonly *\endhtmlonly * * For the time of day: * * \htmlonly* \code * UCAL_MONTH + UCAL_DAY_OF_MONTH * UCAL_MONTH + UCAL_WEEK_OF_MONTH + UCAL_DAY_OF_WEEK * UCAL_MONTH + UCAL_DAY_OF_WEEK_IN_MONTH + UCAL_DAY_OF_WEEK * UCAL_DAY_OF_YEAR * UCAL_DAY_OF_WEEK + UCAL_WEEK_OF_YEAR * \endcode ** \htmlonly
\endhtmlonly *\endhtmlonly * ** \code * UCAL_HOUR_OF_DAY * UCAL_AM_PM + UCAL_HOUR * \endcode ** \htmlonly
* Note: for some non-Gregorian calendars, different * fields may be necessary for complete disambiguation. For example, a full * specification of the historial Arabic astronomical calendar requires year, * month, day-of-month and day-of-week in some cases. * *
* Note: There are certain possible ambiguities in * interpretation of certain singular times, which are resolved in the * following ways: *
* The date or time format strings are not part of the definition of a * calendar, as those must be modifiable or overridable by the user at * runtime. Use {@link DateFormat} * to format dates. * *
* Calendar provides an API for field "rolling", where fields
* can be incremented or decremented, but wrap around. For example, rolling the
* month up in the date December 12, 1996 results in
* January 12, 1996.
*
*
* Calendar also provides a date arithmetic function for
* adding the specified (signed) amount of time to a particular time field.
* For example, subtracting 5 days from the date September 12, 1996
* results in September 7, 1996.
*
* @stable ICU 2.0
*/
/** A calendar.
* For usage in C programs.
* @stable ICU 2.0
*/
typedef void* UCalendar;
/** Possible types of UCalendars
* @stable ICU 2.0
*/
enum UCalendarType {
/**
* Despite the name, UCAL_TRADITIONAL designates the locale's default calendar,
* which may be the Gregorian calendar or some other calendar.
* @stable ICU 2.0
*/
UCAL_TRADITIONAL,
/**
* Unambiguously designates the Gregorian calendar for the locale.
* @stable ICU 2.0
*/
UCAL_GREGORIAN,
/**
* A better name for UCAL_TRADITIONAL.
* @draft ICU 4.2
*/
UCAL_DEFAULT = UCAL_TRADITIONAL
};
/** @stable ICU 2.0 */
typedef enum UCalendarType UCalendarType;
/** Possible fields in a UCalendar
* @stable ICU 2.0
*/
enum UCalendarDateFields {
/**
* Field number indicating the era, e.g., AD or BC in the Gregorian (Julian) calendar.
* This is a calendar-specific value.
* @stable ICU 2.6
*/
UCAL_ERA,
/**
* Field number indicating the year. This is a calendar-specific value.
* @stable ICU 2.6
*/
UCAL_YEAR,
/**
* Field number indicating the month. This is a calendar-specific value.
* The first month of the year is
* JANUARY; the last depends on the number of months in a year.
* @see #UCAL_JANUARY
* @see #UCAL_FEBRUARY
* @see #UCAL_MARCH
* @see #UCAL_APRIL
* @see #UCAL_MAY
* @see #UCAL_JUNE
* @see #UCAL_JULY
* @see #UCAL_AUGUST
* @see #UCAL_SEPTEMBER
* @see #UCAL_OCTOBER
* @see #UCAL_NOVEMBER
* @see #UCAL_DECEMBER
* @see #UCAL_UNDECIMBER
* @stable ICU 2.6
*/
UCAL_MONTH,
/**
* Field number indicating the
* week number within the current year. The first week of the year, as
* defined by UCAL_FIRST_DAY_OF_WEEK and UCAL_MINIMAL_DAYS_IN_FIRST_WEEK
* attributes, has value 1. Subclasses define
* the value of UCAL_WEEK_OF_YEAR for days before the first week of
* the year.
* @see ucal_getAttribute
* @see ucal_setAttribute
* @stable ICU 2.6
*/
UCAL_WEEK_OF_YEAR,
/**
* Field number indicating the
* week number within the current month. The first week of the month, as
* defined by UCAL_FIRST_DAY_OF_WEEK and UCAL_MINIMAL_DAYS_IN_FIRST_WEEK
* attributes, has value 1. Subclasses define
* the value of WEEK_OF_MONTH for days before the first week of
* the month.
* @see ucal_getAttribute
* @see ucal_setAttribute
* @see #UCAL_FIRST_DAY_OF_WEEK
* @see #UCAL_MINIMAL_DAYS_IN_FIRST_WEEK
* @stable ICU 2.6
*/
UCAL_WEEK_OF_MONTH,
/**
* Field number indicating the
* day of the month. This is a synonym for DAY_OF_MONTH.
* The first day of the month has value 1.
* @see #UCAL_DAY_OF_MONTH
* @stable ICU 2.6
*/
UCAL_DATE,
/**
* Field number indicating the day
* number within the current year. The first day of the year has value 1.
* @stable ICU 2.6
*/
UCAL_DAY_OF_YEAR,
/**
* Field number indicating the day
* of the week. This field takes values SUNDAY,
* MONDAY, TUESDAY, WEDNESDAY,
* THURSDAY, FRIDAY, and SATURDAY.
* @see #UCAL_SUNDAY
* @see #UCAL_MONDAY
* @see #UCAL_TUESDAY
* @see #UCAL_WEDNESDAY
* @see #UCAL_THURSDAY
* @see #UCAL_FRIDAY
* @see #UCAL_SATURDAY
* @stable ICU 2.6
*/
UCAL_DAY_OF_WEEK,
/**
* Field number indicating the
* ordinal number of the day of the week within the current month. Together
* with the DAY_OF_WEEK field, this uniquely specifies a day
* within a month. Unlike WEEK_OF_MONTH and
* WEEK_OF_YEAR, this field's value does not depend on
* getFirstDayOfWeek() or
* getMinimalDaysInFirstWeek(). DAY_OF_MONTH 1
* through 7 always correspond to DAY_OF_WEEK_IN_MONTH
* 1; 8 through 15 correspond to
* DAY_OF_WEEK_IN_MONTH 2, and so on.
* DAY_OF_WEEK_IN_MONTH 0 indicates the week before
* DAY_OF_WEEK_IN_MONTH 1. Negative values count back from the
* end of the month, so the last Sunday of a month is specified as
* DAY_OF_WEEK = SUNDAY, DAY_OF_WEEK_IN_MONTH = -1. Because
* negative values count backward they will usually be aligned differently
* within the month than positive values. For example, if a month has 31
* days, DAY_OF_WEEK_IN_MONTH -1 will overlap
* DAY_OF_WEEK_IN_MONTH 5 and the end of 4.
* @see #UCAL_DAY_OF_WEEK
* @see #UCAL_WEEK_OF_MONTH
* @stable ICU 2.6
*/
UCAL_DAY_OF_WEEK_IN_MONTH,
/**
* Field number indicating
* whether the HOUR is before or after noon.
* E.g., at 10:04:15.250 PM the AM_PM is PM.
* @see #UCAL_AM
* @see #UCAL_PM
* @see #UCAL_HOUR
* @stable ICU 2.6
*/
UCAL_AM_PM,
/**
* Field number indicating the
* hour of the morning or afternoon. HOUR is used for the 12-hour
* clock.
* E.g., at 10:04:15.250 PM the HOUR is 10.
* @see #UCAL_AM_PM
* @see #UCAL_HOUR_OF_DAY
* @stable ICU 2.6
*/
UCAL_HOUR,
/**
* Field number indicating the
* hour of the day. HOUR_OF_DAY is used for the 24-hour clock.
* E.g., at 10:04:15.250 PM the HOUR_OF_DAY is 22.
* @see #UCAL_HOUR
* @stable ICU 2.6
*/
UCAL_HOUR_OF_DAY,
/**
* Field number indicating the
* minute within the hour.
* E.g., at 10:04:15.250 PM the UCAL_MINUTE is 4.
* @stable ICU 2.6
*/
UCAL_MINUTE,
/**
* Field number indicating the
* second within the minute.
* E.g., at 10:04:15.250 PM the UCAL_SECOND is 15.
* @stable ICU 2.6
*/
UCAL_SECOND,
/**
* Field number indicating the
* millisecond within the second.
* E.g., at 10:04:15.250 PM the UCAL_MILLISECOND is 250.
* @stable ICU 2.6
*/
UCAL_MILLISECOND,
/**
* Field number indicating the
* raw offset from GMT in milliseconds.
* @stable ICU 2.6
*/
UCAL_ZONE_OFFSET,
/**
* Field number indicating the
* daylight savings offset in milliseconds.
* @stable ICU 2.6
*/
UCAL_DST_OFFSET,
/**
* Field number
* indicating the extended year corresponding to the
* UCAL_WEEK_OF_YEAR field. This may be one greater or less
* than the value of UCAL_EXTENDED_YEAR.
* @stable ICU 2.6
*/
UCAL_YEAR_WOY,
/**
* Field number
* indicating the localized day of week. This will be a value from 1
* to 7 inclusive, with 1 being the localized first day of the week.
* @stable ICU 2.6
*/
UCAL_DOW_LOCAL,
/**
* Year of this calendar system, encompassing all supra-year fields. For example,
* in Gregorian/Julian calendars, positive Extended Year values indicate years AD,
* 1 BC = 0 extended, 2 BC = -1 extended, and so on.
* @stable ICU 2.8
*/
UCAL_EXTENDED_YEAR,
/**
* Field number
* indicating the modified Julian day number. This is different from
* the conventional Julian day number in two regards. First, it
* demarcates days at local zone midnight, rather than noon GMT.
* Second, it is a local number; that is, it depends on the local time
* zone. It can be thought of as a single number that encompasses all
* the date-related fields.
* @stable ICU 2.8
*/
UCAL_JULIAN_DAY,
/**
* Ranges from 0 to 23:59:59.999 (regardless of DST). This field behaves exactly
* like a composite of all time-related fields, not including the zone fields. As such,
* it also reflects discontinuities of those fields on DST transition days. On a day
* of DST onset, it will jump forward. On a day of DST cessation, it will jump
* backward. This reflects the fact that it must be combined with the DST_OFFSET field
* to obtain a unique local time value.
* @stable ICU 2.8
*/
UCAL_MILLISECONDS_IN_DAY,
/**
* Whether or not the current month is a leap month (0 or 1). See the Chinese calendar for
* an example of this.
*/
UCAL_IS_LEAP_MONTH,
/**
* Field count
* @stable ICU 2.6
*/
UCAL_FIELD_COUNT,
/**
* Field number indicating the
* day of the month. This is a synonym for UCAL_DATE.
* The first day of the month has value 1.
* @see #UCAL_DATE
* Synonym for UCAL_DATE
* @stable ICU 2.8
**/
UCAL_DAY_OF_MONTH=UCAL_DATE
};
/** @stable ICU 2.0 */
typedef enum UCalendarDateFields UCalendarDateFields;
/**
* Useful constant for days of week. Note: Calendar day-of-week is 1-based. Clients
* who create locale resources for the field of first-day-of-week should be aware of
* this. For instance, in US locale, first-day-of-week is set to 1, i.e., UCAL_SUNDAY.
*/
/** Possible days of the week in a UCalendar
* @stable ICU 2.0
*/
enum UCalendarDaysOfWeek {
/** Sunday */
UCAL_SUNDAY = 1,
/** Monday */
UCAL_MONDAY,
/** Tuesday */
UCAL_TUESDAY,
/** Wednesday */
UCAL_WEDNESDAY,
/** Thursday */
UCAL_THURSDAY,
/** Friday */
UCAL_FRIDAY,
/** Saturday */
UCAL_SATURDAY
};
/** @stable ICU 2.0 */
typedef enum UCalendarDaysOfWeek UCalendarDaysOfWeek;
/** Possible months in a UCalendar. Note: Calendar month is 0-based.
* @stable ICU 2.0
*/
enum UCalendarMonths {
/** January */
UCAL_JANUARY,
/** February */
UCAL_FEBRUARY,
/** March */
UCAL_MARCH,
/** April */
UCAL_APRIL,
/** May */
UCAL_MAY,
/** June */
UCAL_JUNE,
/** July */
UCAL_JULY,
/** August */
UCAL_AUGUST,
/** September */
UCAL_SEPTEMBER,
/** October */
UCAL_OCTOBER,
/** November */
UCAL_NOVEMBER,
/** December */
UCAL_DECEMBER,
/** Value of the UCAL_MONTH field indicating the
* thirteenth month of the year. Although the Gregorian calendar
* does not use this value, lunar calendars do.
*/
UCAL_UNDECIMBER
};
/** @stable ICU 2.0 */
typedef enum UCalendarMonths UCalendarMonths;
/** Possible AM/PM values in a UCalendar
* @stable ICU 2.0
*/
enum UCalendarAMPMs {
/** AM */
UCAL_AM,
/** PM */
UCAL_PM
};
/** @stable ICU 2.0 */
typedef enum UCalendarAMPMs UCalendarAMPMs;
/**
* Create an enumeration over all time zones.
*
* @param ec input/output error code
*
* @return an enumeration object that the caller must dispose of using
* uenum_close(), or NULL upon failure. In case of failure *ec will
* indicate the error.
*
* @stable ICU 2.6
*/
U_STABLE UEnumeration* U_EXPORT2
ucal_openTimeZones(UErrorCode* ec);
/**
* Create an enumeration over all time zones associated with the given
* country. Some zones are affiliated with no country (e.g., "UTC");
* these may also be retrieved, as a group.
*
* @param country the ISO 3166 two-letter country code, or NULL to
* retrieve zones not affiliated with any country
*
* @param ec input/output error code
*
* @return an enumeration object that the caller must dispose of using
* uenum_close(), or NULL upon failure. In case of failure *ec will
* indicate the error.
*
* @stable ICU 2.6
*/
U_STABLE UEnumeration* U_EXPORT2
ucal_openCountryTimeZones(const char* country, UErrorCode* ec);
/**
* Return the default time zone. The default is determined initially
* by querying the host operating system. It may be changed with
* ucal_setDefaultTimeZone() or with the C++ TimeZone API.
*
* @param result A buffer to receive the result, or NULL
*
* @param resultCapacity The capacity of the result buffer
*
* @param ec input/output error code
*
* @return The result string length, not including the terminating
* null
*
* @stable ICU 2.6
*/
U_STABLE int32_t U_EXPORT2
ucal_getDefaultTimeZone(UChar* result, int32_t resultCapacity, UErrorCode* ec);
/**
* Set the default time zone.
*
* @param zoneID null-terminated time zone ID
*
* @param ec input/output error code
*
* @stable ICU 2.6
*/
U_STABLE void U_EXPORT2
ucal_setDefaultTimeZone(const UChar* zoneID, UErrorCode* ec);
/**
* Return the amount of time in milliseconds that the clock is
* advanced during daylight savings time for the given time zone, or
* zero if the time zone does not observe daylight savings time.
*
* @param zoneID null-terminated time zone ID
*
* @param ec input/output error code
*
* @return the number of milliseconds the time is advanced with
* respect to standard time when the daylight savings rules are in
* effect. This is always a non-negative number, most commonly either
* 3,600,000 (one hour) or zero.
*
* @stable ICU 2.6
*/
U_STABLE int32_t U_EXPORT2
ucal_getDSTSavings(const UChar* zoneID, UErrorCode* ec);
/**
* Get the current date and time.
* The value returned is represented as milliseconds from the epoch.
* @return The current date and time.
* @stable ICU 2.0
*/
U_STABLE UDate U_EXPORT2
ucal_getNow(void);
/**
* Open a UCalendar.
* A UCalendar may be used to convert a millisecond value to a year,
* month, and day.
*
* Note: When unknown TimeZone ID is specified, the UCalendar returned * by the function is initialized with GMT ("Etc/GMT") without any * errors/warnings. If you want to check if a TimeZone ID is valid, * use ucal_getCanonicalTimeZoneID prior to this function. * * @param zoneID The desired TimeZone ID. If 0, use the default time zone. * @param len The length of zoneID, or -1 if null-terminated. * @param locale The desired locale * @param type The type of UCalendar to open. This can be UCAL_GREGORIAN to open the Gregorian * calendar for the locale, or UCAL_DEFAULT to open the default calendar for the locale (the * default calendar may also be Gregorian). To open a specific non-Gregorian calendar for the * locale, use uloc_setKeywordValue to set the value of the calendar keyword for the locale * and then pass the locale to ucal_open with UCAL_DEFAULT as the type. * @param status A pointer to an UErrorCode to receive any errors * @return A pointer to a UCalendar, or 0 if an error occurred. * @stable ICU 2.0 */ U_STABLE UCalendar* U_EXPORT2 ucal_open(const UChar* zoneID, int32_t len, const char* locale, UCalendarType type, UErrorCode* status); /** * Close a UCalendar. * Once closed, a UCalendar may no longer be used. * @param cal The UCalendar to close. * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_close(UCalendar *cal); /** * Open a copy of a UCalendar. * This function performs a deep copy. * @param cal The calendar to copy * @param status A pointer to an UErrorCode to receive any errors. * @return A pointer to a UCalendar identical to cal. * @stable ICU 4.0 */ U_DRAFT UCalendar* U_EXPORT2 ucal_clone(const UCalendar* cal, UErrorCode* status); /** * Set the TimeZone used by a UCalendar. * A UCalendar uses a timezone for converting from Greenwich time to local time. * @param cal The UCalendar to set. * @param zoneID The desired TimeZone ID. If 0, use the default time zone. * @param len The length of zoneID, or -1 if null-terminated. * @param status A pointer to an UErrorCode to receive any errors. * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_setTimeZone(UCalendar* cal, const UChar* zoneID, int32_t len, UErrorCode* status); /** * Possible formats for a UCalendar's display name * @stable ICU 2.0 */ enum UCalendarDisplayNameType { /** Standard display name */ UCAL_STANDARD, /** Short standard display name */ UCAL_SHORT_STANDARD, /** Daylight savings display name */ UCAL_DST, /** Short daylight savings display name */ UCAL_SHORT_DST }; /** @stable ICU 2.0 */ typedef enum UCalendarDisplayNameType UCalendarDisplayNameType; /** * Get the display name for a UCalendar's TimeZone. * A display name is suitable for presentation to a user. * @param cal The UCalendar to query. * @param type The desired display name format; one of UCAL_STANDARD, UCAL_SHORT_STANDARD, * UCAL_DST, UCAL_SHORT_DST * @param locale The desired locale for the display name. * @param result A pointer to a buffer to receive the formatted number. * @param resultLength The maximum size of result. * @param status A pointer to an UErrorCode to receive any errors * @return The total buffer size needed; if greater than resultLength, the output was truncated. * @stable ICU 2.0 */ U_STABLE int32_t U_EXPORT2 ucal_getTimeZoneDisplayName(const UCalendar* cal, UCalendarDisplayNameType type, const char* locale, UChar* result, int32_t resultLength, UErrorCode* status); /** * Determine if a UCalendar is currently in daylight savings time. * Daylight savings time is not used in all parts of the world. * @param cal The UCalendar to query. * @param status A pointer to an UErrorCode to receive any errors * @return TRUE if cal is currently in daylight savings time, FALSE otherwise * @stable ICU 2.0 */ U_STABLE UBool U_EXPORT2 ucal_inDaylightTime(const UCalendar* cal, UErrorCode* status ); /** * Sets the GregorianCalendar change date. This is the point when the switch from * Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October * 15, 1582. Previous to this time and date will be Julian dates. * * This function works only for Gregorian calendars. If the UCalendar is not * an instance of a Gregorian calendar, then a U_UNSUPPORTED_ERROR * error code is set. * * @param cal The calendar object. * @param date The given Gregorian cutover date. * @param pErrorCode Pointer to a standard ICU error code. Its input value must * pass the U_SUCCESS() test, or else the function returns * immediately. Check for U_FAILURE() on output or use with * function chaining. (See User Guide for details.) * * @see GregorianCalendar::setGregorianChange * @see ucal_getGregorianChange * @stable ICU 3.6 */ U_STABLE void U_EXPORT2 ucal_setGregorianChange(UCalendar *cal, UDate date, UErrorCode *pErrorCode); /** * Gets the Gregorian Calendar change date. This is the point when the switch from * Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October * 15, 1582. Previous to this time and date will be Julian dates. * * This function works only for Gregorian calendars. If the UCalendar is not * an instance of a Gregorian calendar, then a U_UNSUPPORTED_ERROR * error code is set. * * @param cal The calendar object. * @param pErrorCode Pointer to a standard ICU error code. Its input value must * pass the U_SUCCESS() test, or else the function returns * immediately. Check for U_FAILURE() on output or use with * function chaining. (See User Guide for details.) * @return The Gregorian cutover time for this calendar. * * @see GregorianCalendar::getGregorianChange * @see ucal_setGregorianChange * @stable ICU 3.6 */ U_STABLE UDate U_EXPORT2 ucal_getGregorianChange(const UCalendar *cal, UErrorCode *pErrorCode); /** * Types of UCalendar attributes * @stable ICU 2.0 */ enum UCalendarAttribute { /** Lenient parsing */ UCAL_LENIENT, /** First day of week */ UCAL_FIRST_DAY_OF_WEEK, /** Minimum number of days in first week */ UCAL_MINIMAL_DAYS_IN_FIRST_WEEK }; /** @stable ICU 2.0 */ typedef enum UCalendarAttribute UCalendarAttribute; /** * Get a numeric attribute associated with a UCalendar. * Numeric attributes include the first day of the week, or the minimal numbers * of days in the first week of the month. * @param cal The UCalendar to query. * @param attr The desired attribute; one of UCAL_LENIENT, UCAL_FIRST_DAY_OF_WEEK, * or UCAL_MINIMAL_DAYS_IN_FIRST_WEEK * @return The value of attr. * @see ucal_setAttribute * @stable ICU 2.0 */ U_STABLE int32_t U_EXPORT2 ucal_getAttribute(const UCalendar* cal, UCalendarAttribute attr); /** * Set a numeric attribute associated with a UCalendar. * Numeric attributes include the first day of the week, or the minimal numbers * of days in the first week of the month. * @param cal The UCalendar to set. * @param attr The desired attribute; one of UCAL_LENIENT, UCAL_FIRST_DAY_OF_WEEK, * or UCAL_MINIMAL_DAYS_IN_FIRST_WEEK * @param newValue The new value of attr. * @see ucal_getAttribute * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_setAttribute(UCalendar* cal, UCalendarAttribute attr, int32_t newValue); /** * Get a locale for which calendars are available. * A UCalendar in a locale returned by this function will contain the correct * day and month names for the locale. * @param localeIndex The index of the desired locale. * @return A locale for which calendars are available, or 0 if none. * @see ucal_countAvailable * @stable ICU 2.0 */ U_STABLE const char* U_EXPORT2 ucal_getAvailable(int32_t localeIndex); /** * Determine how many locales have calendars available. * This function is most useful as determining the loop ending condition for * calls to \ref ucal_getAvailable. * @return The number of locales for which calendars are available. * @see ucal_getAvailable * @stable ICU 2.0 */ U_STABLE int32_t U_EXPORT2 ucal_countAvailable(void); /** * Get a UCalendar's current time in millis. * The time is represented as milliseconds from the epoch. * @param cal The UCalendar to query. * @param status A pointer to an UErrorCode to receive any errors * @return The calendar's current time in millis. * @see ucal_setMillis * @see ucal_setDate * @see ucal_setDateTime * @stable ICU 2.0 */ U_STABLE UDate U_EXPORT2 ucal_getMillis(const UCalendar* cal, UErrorCode* status); /** * Set a UCalendar's current time in millis. * The time is represented as milliseconds from the epoch. * @param cal The UCalendar to set. * @param dateTime The desired date and time. * @param status A pointer to an UErrorCode to receive any errors * @see ucal_getMillis * @see ucal_setDate * @see ucal_setDateTime * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_setMillis(UCalendar* cal, UDate dateTime, UErrorCode* status ); /** * Set a UCalendar's current date. * The date is represented as a series of 32-bit integers. * @param cal The UCalendar to set. * @param year The desired year. * @param month The desired month; one of UCAL_JANUARY, UCAL_FEBRUARY, UCAL_MARCH, UCAL_APRIL, UCAL_MAY, * UCAL_JUNE, UCAL_JULY, UCAL_AUGUST, UCAL_SEPTEMBER, UCAL_OCTOBER, UCAL_NOVEMBER, UCAL_DECEMBER, UCAL_UNDECIMBER * @param date The desired day of the month. * @param status A pointer to an UErrorCode to receive any errors * @see ucal_getMillis * @see ucal_setMillis * @see ucal_setDateTime * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_setDate(UCalendar* cal, int32_t year, int32_t month, int32_t date, UErrorCode* status); /** * Set a UCalendar's current date. * The date is represented as a series of 32-bit integers. * @param cal The UCalendar to set. * @param year The desired year. * @param month The desired month; one of UCAL_JANUARY, UCAL_FEBRUARY, UCAL_MARCH, UCAL_APRIL, UCAL_MAY, * UCAL_JUNE, UCAL_JULY, UCAL_AUGUST, UCAL_SEPTEMBER, UCAL_OCTOBER, UCAL_NOVEMBER, UCAL_DECEMBER, UCAL_UNDECIMBER * @param date The desired day of the month. * @param hour The desired hour of day. * @param minute The desired minute. * @param second The desirec second. * @param status A pointer to an UErrorCode to receive any errors * @see ucal_getMillis * @see ucal_setMillis * @see ucal_setDate * @stable ICU 2.0 */ U_STABLE 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); /** * Returns TRUE if two UCalendars are equivalent. Equivalent * UCalendars will behave identically, but they may be set to * different times. * @param cal1 The first of the UCalendars to compare. * @param cal2 The second of the UCalendars to compare. * @return TRUE if cal1 and cal2 are equivalent, FALSE otherwise. * @stable ICU 2.0 */ U_STABLE UBool U_EXPORT2 ucal_equivalentTo(const UCalendar* cal1, const UCalendar* cal2); /** * Add a specified signed amount to a particular field in a UCalendar. * This can modify more significant fields in the calendar. * @param cal The UCalendar to which to add. * @param field The field to which to add the signed value; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @param amount The signed amount to add to field. If the amount causes the value * to exceed to maximum or minimum values for that field, other fields are modified * to preserve the magnitude of the change. * @param status A pointer to an UErrorCode to receive any errors * @see ucal_roll * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_add(UCalendar* cal, UCalendarDateFields field, int32_t amount, UErrorCode* status); /** * Add a specified signed amount to a particular field in a UCalendar. * This will not modify more significant fields in the calendar. * @param cal The UCalendar to which to add. * @param field The field to which to add the signed value; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @param amount The signed amount to add to field. If the amount causes the value * to exceed to maximum or minimum values for that field, the field is pinned to a permissible * value. * @param status A pointer to an UErrorCode to receive any errors * @see ucal_add * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_roll(UCalendar* cal, UCalendarDateFields field, int32_t amount, UErrorCode* status); /** * Get the current value of a field from a UCalendar. * All fields are represented as 32-bit integers. * @param cal The UCalendar to query. * @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @param status A pointer to an UErrorCode to receive any errors * @return The value of the desired field. * @see ucal_set * @see ucal_isSet * @see ucal_clearField * @see ucal_clear * @stable ICU 2.0 */ U_STABLE int32_t U_EXPORT2 ucal_get(const UCalendar* cal, UCalendarDateFields field, UErrorCode* status ); /** * Set the value of a field in a UCalendar. * All fields are represented as 32-bit integers. * @param cal The UCalendar to set. * @param field The field to set; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @param value The desired value of field. * @see ucal_get * @see ucal_isSet * @see ucal_clearField * @see ucal_clear * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_set(UCalendar* cal, UCalendarDateFields field, int32_t value); /** * Determine if a field in a UCalendar is set. * All fields are represented as 32-bit integers. * @param cal The UCalendar to query. * @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @return TRUE if field is set, FALSE otherwise. * @see ucal_get * @see ucal_set * @see ucal_clearField * @see ucal_clear * @stable ICU 2.0 */ U_STABLE UBool U_EXPORT2 ucal_isSet(const UCalendar* cal, UCalendarDateFields field); /** * Clear a field in a UCalendar. * All fields are represented as 32-bit integers. * @param cal The UCalendar containing the field to clear. * @param field The field to clear; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @see ucal_get * @see ucal_set * @see ucal_isSet * @see ucal_clear * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_clearField(UCalendar* cal, UCalendarDateFields field); /** * Clear all fields in a UCalendar. * All fields are represented as 32-bit integers. * @param calendar The UCalendar to clear. * @see ucal_get * @see ucal_set * @see ucal_isSet * @see ucal_clearField * @stable ICU 2.0 */ U_STABLE void U_EXPORT2 ucal_clear(UCalendar* calendar); /** * Possible limit values for a UCalendar * @stable ICU 2.0 */ enum UCalendarLimitType { /** Minimum value */ UCAL_MINIMUM, /** Maximum value */ UCAL_MAXIMUM, /** Greatest minimum value */ UCAL_GREATEST_MINIMUM, /** Leaest maximum value */ UCAL_LEAST_MAXIMUM, /** Actual minimum value */ UCAL_ACTUAL_MINIMUM, /** Actual maximum value */ UCAL_ACTUAL_MAXIMUM }; /** @stable ICU 2.0 */ typedef enum UCalendarLimitType UCalendarLimitType; /** * Determine a limit for a field in a UCalendar. * A limit is a maximum or minimum value for a field. * @param cal The UCalendar to query. * @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH, * UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK, * UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND, * UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET. * @param type The desired critical point; one of UCAL_MINIMUM, UCAL_MAXIMUM, UCAL_GREATEST_MINIMUM, * UCAL_LEAST_MAXIMUM, UCAL_ACTUAL_MINIMUM, UCAL_ACTUAL_MAXIMUM * @param status A pointer to an UErrorCode to receive any errors. * @return The requested value. * @stable ICU 2.0 */ U_STABLE int32_t U_EXPORT2 ucal_getLimit(const UCalendar* cal, UCalendarDateFields field, UCalendarLimitType type, UErrorCode* status); /** Get the locale for this calendar object. You can choose between valid and actual locale. * @param cal The calendar object * @param type type of the locale we're looking for (valid or actual) * @param status error code for the operation * @return the locale name * @stable ICU 2.8 */ U_STABLE const char * U_EXPORT2 ucal_getLocaleByType(const UCalendar *cal, ULocDataLocaleType type, UErrorCode* status); /** * Returns the timezone data version currently used by ICU. * @param status error code for the operation * @return the version string, such as "2007f" * @stable ICU 3.8 */ U_DRAFT const char * U_EXPORT2 ucal_getTZDataVersion(UErrorCode* status); /** * Returns the canonical system timezone ID or the normalized * custom time zone ID for the given time zone ID. * @param id The input timezone ID to be canonicalized. * @param len The length of id, or -1 if null-terminated. * @param result The buffer receives the canonical system timezone ID * or the custom timezone ID in normalized format. * @param resultCapacity The capacity of the result buffer. * @param isSystemID Receives if the given ID is a known system * timezone ID. * @param status Recevies the status. When the given timezone ID * is neither a known system time zone ID nor a * valid custom timezone ID, U_ILLEGAL_ARGUMENT_ERROR * is set. * @return The result string length, not including the terminating * null. * @stable ICU 4.0 */ U_DRAFT int32_t U_EXPORT2 ucal_getCanonicalTimeZoneID(const UChar* id, int32_t len, UChar* result, int32_t resultCapacity, UBool *isSystemID, UErrorCode* status); /** * Get the resource keyword value string designating the calendar type for the UCalendar. * @param cal The UCalendar to query. * @param status The error code for the operation. * @return The resource keyword value string. * @draft ICU 4.2 */ U_DRAFT const char * U_EXPORT2 ucal_getType(const UCalendar *cal, UErrorCode* status); /** * Given a key and a locale, returns an array of string values in a preferred * order that would make a difference. These are all and only those values where * the open (creation) of the service with the locale formed from the input locale * plus input keyword and that value has different behavior than creation with the * input locale alone. * @param key one of the keys supported by this service. For now, only * "calendar" is supported. * @param locale the locale * @param commonlyUsed if set to true it will return only commonly used values * with the given locale in preferred order. Otherwise, * it will return all the available values for the locale. * @param status error status * @return a string enumeration over keyword values for the given key and the locale. * @draft ICU 4.2 */ U_DRAFT UEnumeration* U_EXPORT2 ucal_getKeywordValuesForLocale(const char* key, const char* locale, UBool commonlyUsed, UErrorCode* status); #endif /* #if !UCONFIG_NO_FORMATTING */ #endif