The Tor Browser: intl/icu/source/i18n/unicode/simpletz.h@fc2d59ddac77 (annotated)

intl/icu/source/i18n/unicode/simpletz.h@fc2d59ddac77 (annotated)

intl/icu/source/i18n/unicode/simpletz.h

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) 1997-2013, International Business Machines                     *
  * Corporation and others. All Rights Reserved.                                 *
  ********************************************************************************
  *
  * File SIMPLETZ.H
  *
  * Modification History:
  *
  *   Date        Name        Description
  *   04/21/97    aliu        Overhauled header.
  *   08/10/98    stephen     JDK 1.2 sync
  *                           Added setStartRule() / setEndRule() overloads
  *                           Added hasSameRules()
  *   09/02/98    stephen     Added getOffset(monthLen)
  *                           Changed getOffset() to take UErrorCode
  *   07/09/99    stephen     Removed millisPerHour (unused, for HP compiler)
  *   12/02/99    aliu        Added TimeMode and constructor and setStart/EndRule
  *                           methods that take TimeMode. Added to docs.
  ********************************************************************************
  */
 #ifndef SIMPLETZ_H
 #define SIMPLETZ_H
 #include "unicode/utypes.h"
 /**
  * \file
  * \brief C++ API: SimpleTimeZone is a concrete subclass of TimeZone.
  */
 #if !UCONFIG_NO_FORMATTING
 #include "unicode/basictz.h"
 U_NAMESPACE_BEGIN
 // forward declaration
 class InitialTimeZoneRule;
 class TimeZoneTransition;
 class AnnualTimeZoneRule;
 /**
  * <code>SimpleTimeZone</code> is a concrete subclass of <code>TimeZone</code>
  * that represents a time zone for use with a Gregorian calendar. This
  * class does not handle historical changes.
  * <P>
  * When specifying daylight-savings-time begin and end dates, use a negative value for
  * <code>dayOfWeekInMonth</code> to indicate that <code>SimpleTimeZone</code> should
  * count from the end of the month backwards. For example, if Daylight Savings
  * Time starts or ends at the last Sunday a month, use <code>dayOfWeekInMonth = -1</code>
  * along with <code>dayOfWeek = UCAL_SUNDAY</code> to specify the rule.
  *
  * @see      Calendar
  * @see      GregorianCalendar
  * @see      TimeZone
  * @author   D. Goldsmith, Mark Davis, Chen-Lieh Huang, Alan Liu
  */
 class U_I18N_API SimpleTimeZone: public BasicTimeZone {
 public:
     /**
      * TimeMode is used, together with a millisecond offset after
      * midnight, to specify a rule transition time.  Most rules
      * transition at a local wall time, that is, according to the
      * current time in effect, either standard, or DST.  However, some
      * rules transition at local standard time, and some at a specific
      * UTC time.  Although it might seem that all times could be
      * converted to wall time, thus eliminating the need for this
      * parameter, this is not the case.
      * @stable ICU 2.0
      */
     enum TimeMode {
         WALL_TIME = 0,
         STANDARD_TIME,
         UTC_TIME
     };
     /**
      * Copy constructor
      * @param source the object to be copied.
      * @stable ICU 2.0
      */
     SimpleTimeZone(const SimpleTimeZone& source);
     /**
      * Default assignment operator
      * @param right    the object to be copied.
      * @stable ICU 2.0
      */
     SimpleTimeZone& operator=(const SimpleTimeZone& right);
     /**
      * Destructor
      * @stable ICU 2.0
      */
     virtual ~SimpleTimeZone();
     /**
      * Returns true if the two TimeZone objects are equal; that is, they have
      * the same ID, raw GMT offset, and DST rules.
      *
      * @param that  The SimpleTimeZone object to be compared with.
      * @return      True if the given time zone is equal to this time zone; false
      *              otherwise.
      * @stable ICU 2.0
      */
     virtual UBool operator==(const TimeZone& that) const;
     /**
      * Constructs a SimpleTimeZone with the given raw GMT offset and time zone ID,
      * and which doesn't observe daylight savings time.  Normally you should use
      * TimeZone::createInstance() to create a TimeZone instead of creating a
      * SimpleTimeZone directly with this constructor.
      *
      * @param rawOffsetGMT  The given base time zone offset to GMT.
      * @param ID         The timezone ID which is obtained from
      *                   TimeZone.getAvailableIDs.
      * @stable ICU 2.0
      */
     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID);
     /**
      * Construct a SimpleTimeZone with the given raw GMT offset, time zone ID,
      * and times to start and end daylight savings time. To create a TimeZone that
      * doesn't observe daylight savings time, don't use this constructor; use
      * SimpleTimeZone(rawOffset, ID) instead. Normally, you should use
      * TimeZone.createInstance() to create a TimeZone instead of creating a
      * SimpleTimeZone directly with this constructor.
      * <P>
      * Various types of daylight-savings time rules can be specfied by using different
      * values for startDay and startDayOfWeek and endDay and endDayOfWeek.  For a
      * complete explanation of how these parameters work, see the documentation for
      * setStartRule().
      *
      * @param rawOffsetGMT      The new SimpleTimeZone's raw GMT offset
      * @param ID                The new SimpleTimeZone's time zone ID.
      * @param savingsStartMonth The daylight savings starting month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsStartDayOfWeekInMonth   The daylight savings starting
      *                          day-of-week-in-month. See setStartRule() for a
      *                          complete explanation.
      * @param savingsStartDayOfWeek The daylight savings starting day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsStartTime  The daylight savings starting time, expressed as the
      *                          number of milliseconds after midnight.
      * @param savingsEndMonth   The daylight savings ending month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsEndDayOfWeekInMonth     The daylight savings ending day-of-week-in-month.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndDayOfWeek The daylight savings ending day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndTime    The daylight savings ending time, expressed as the
      *                          number of milliseconds after midnight.
      * @param status            An UErrorCode to receive the status.
      * @stable ICU 2.0
      */
     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
         int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
         UErrorCode& status);
     /**
      * Construct a SimpleTimeZone with the given raw GMT offset, time zone ID,
      * and times to start and end daylight savings time. To create a TimeZone that
      * doesn't observe daylight savings time, don't use this constructor; use
      * SimpleTimeZone(rawOffset, ID) instead. Normally, you should use
      * TimeZone.createInstance() to create a TimeZone instead of creating a
      * SimpleTimeZone directly with this constructor.
      * <P>
      * Various types of daylight-savings time rules can be specfied by using different
      * values for startDay and startDayOfWeek and endDay and endDayOfWeek.  For a
      * complete explanation of how these parameters work, see the documentation for
      * setStartRule().
      *
      * @param rawOffsetGMT      The new SimpleTimeZone's raw GMT offset
      * @param ID                The new SimpleTimeZone's time zone ID.
      * @param savingsStartMonth The daylight savings starting month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsStartDayOfWeekInMonth   The daylight savings starting
      *                          day-of-week-in-month. See setStartRule() for a
      *                          complete explanation.
      * @param savingsStartDayOfWeek The daylight savings starting day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsStartTime  The daylight savings starting time, expressed as the
      *                          number of milliseconds after midnight.
      * @param savingsEndMonth   The daylight savings ending month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsEndDayOfWeekInMonth     The daylight savings ending day-of-week-in-month.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndDayOfWeek The daylight savings ending day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndTime    The daylight savings ending time, expressed as the
      *                          number of milliseconds after midnight.
      * @param savingsDST        The number of milliseconds added to standard time
      *                          to get DST time. Default is one hour.
      * @param status            An UErrorCode to receive the status.
      * @stable ICU 2.0
      */
     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
         int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
         int32_t savingsDST, UErrorCode& status);
     /**
      * Construct a SimpleTimeZone with the given raw GMT offset, time zone ID,
      * and times to start and end daylight savings time. To create a TimeZone that
      * doesn't observe daylight savings time, don't use this constructor; use
      * SimpleTimeZone(rawOffset, ID) instead. Normally, you should use
      * TimeZone.createInstance() to create a TimeZone instead of creating a
      * SimpleTimeZone directly with this constructor.
      * <P>
      * Various types of daylight-savings time rules can be specfied by using different
      * values for startDay and startDayOfWeek and endDay and endDayOfWeek.  For a
      * complete explanation of how these parameters work, see the documentation for
      * setStartRule().
      *
      * @param rawOffsetGMT      The new SimpleTimeZone's raw GMT offset
      * @param ID                The new SimpleTimeZone's time zone ID.
      * @param savingsStartMonth The daylight savings starting month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsStartDayOfWeekInMonth   The daylight savings starting
      *                          day-of-week-in-month. See setStartRule() for a
      *                          complete explanation.
      * @param savingsStartDayOfWeek The daylight savings starting day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsStartTime  The daylight savings starting time, expressed as the
      *                          number of milliseconds after midnight.
      * @param savingsStartTimeMode Whether the start time is local wall time, local
      *                          standard time, or UTC time. Default is local wall time.
      * @param savingsEndMonth   The daylight savings ending month. Month is
      *                          0-based. eg, 0 for January.
      * @param savingsEndDayOfWeekInMonth     The daylight savings ending day-of-week-in-month.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndDayOfWeek The daylight savings ending day-of-week.
      *                          See setStartRule() for a complete explanation.
      * @param savingsEndTime    The daylight savings ending time, expressed as the
      *                          number of milliseconds after midnight.
      * @param savingsEndTimeMode Whether the end time is local wall time, local
      *                          standard time, or UTC time. Default is local wall time.
      * @param savingsDST        The number of milliseconds added to standard time
      *                          to get DST time. Default is one hour.
      * @param status            An UErrorCode to receive the status.
      * @stable ICU 2.0
      */
     SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
         int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
         int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
         TimeMode savingsStartTimeMode,
         int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
         int8_t savingsEndDayOfWeek, int32_t savingsEndTime, TimeMode savingsEndTimeMode,
         int32_t savingsDST, UErrorCode& status);
     /**
      * Sets the daylight savings starting year, that is, the year this time zone began
      * observing its specified daylight savings time rules.  The time zone is considered
      * not to observe daylight savings time prior to that year; SimpleTimeZone doesn't
      * support historical daylight-savings-time rules.
      * @param year the daylight savings starting year.
      * @stable ICU 2.0
      */
     void setStartYear(int32_t year);
     /**
      * Sets the daylight savings starting rule. For example, in the U.S., Daylight Savings
      * Time starts at the second Sunday in March, at 2 AM in standard time.
      * Therefore, you can set the start rule by calling:
      * setStartRule(UCAL_MARCH, 2, UCAL_SUNDAY, 2*60*60*1000);
      * The dayOfWeekInMonth and dayOfWeek parameters together specify how to calculate
      * the exact starting date.  Their exact meaning depend on their respective signs,
      * allowing various types of rules to be constructed, as follows:
      * <ul>
      *   <li>If both dayOfWeekInMonth and dayOfWeek are positive, they specify the
      *       day of week in the month (e.g., (2, WEDNESDAY) is the second Wednesday
      *       of the month).</li>
      *   <li>If dayOfWeek is positive and dayOfWeekInMonth is negative, they specify
      *       the day of week in the month counting backward from the end of the month.
      *       (e.g., (-1, MONDAY) is the last Monday in the month)</li>
      *   <li>If dayOfWeek is zero and dayOfWeekInMonth is positive, dayOfWeekInMonth
      *       specifies the day of the month, regardless of what day of the week it is.
      *       (e.g., (10, 0) is the tenth day of the month)</li>
      *   <li>If dayOfWeek is zero and dayOfWeekInMonth is negative, dayOfWeekInMonth
      *       specifies the day of the month counting backward from the end of the
      *       month, regardless of what day of the week it is (e.g., (-2, 0) is the
      *       next-to-last day of the month).</li>
      *   <li>If dayOfWeek is negative and dayOfWeekInMonth is positive, they specify the
      *       first specified day of the week on or after the specfied day of the month.
      *       (e.g., (15, -SUNDAY) is the first Sunday after the 15th of the month
      *       [or the 15th itself if the 15th is a Sunday].)</li>
      *   <li>If dayOfWeek and DayOfWeekInMonth are both negative, they specify the
      *       last specified day of the week on or before the specified day of the month.
      *       (e.g., (-20, -TUESDAY) is the last Tuesday before the 20th of the month
      *       [or the 20th itself if the 20th is a Tuesday].)</li>
      * </ul>
      * @param month the daylight savings starting month. Month is 0-based.
      * eg, 0 for January.
      * @param dayOfWeekInMonth the daylight savings starting
      * day-of-week-in-month. Please see the member description for an example.
      * @param dayOfWeek the daylight savings starting day-of-week. Please see
      * the member description for an example.
      * @param time the daylight savings starting time. Please see the member
      * description for an example.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
                       int32_t time, UErrorCode& status);
     /**
      * Sets the daylight savings starting rule. For example, in the U.S., Daylight Savings
      * Time starts at the second Sunday in March, at 2 AM in standard time.
      * Therefore, you can set the start rule by calling:
      * setStartRule(UCAL_MARCH, 2, UCAL_SUNDAY, 2*60*60*1000);
      * The dayOfWeekInMonth and dayOfWeek parameters together specify how to calculate
      * the exact starting date.  Their exact meaning depend on their respective signs,
      * allowing various types of rules to be constructed, as follows:
      * <ul>
      *   <li>If both dayOfWeekInMonth and dayOfWeek are positive, they specify the
      *       day of week in the month (e.g., (2, WEDNESDAY) is the second Wednesday
      *       of the month).</li>
      *   <li>If dayOfWeek is positive and dayOfWeekInMonth is negative, they specify
      *       the day of week in the month counting backward from the end of the month.
      *       (e.g., (-1, MONDAY) is the last Monday in the month)</li>
      *   <li>If dayOfWeek is zero and dayOfWeekInMonth is positive, dayOfWeekInMonth
      *       specifies the day of the month, regardless of what day of the week it is.
      *       (e.g., (10, 0) is the tenth day of the month)</li>
      *   <li>If dayOfWeek is zero and dayOfWeekInMonth is negative, dayOfWeekInMonth
      *       specifies the day of the month counting backward from the end of the
      *       month, regardless of what day of the week it is (e.g., (-2, 0) is the
      *       next-to-last day of the month).</li>
      *   <li>If dayOfWeek is negative and dayOfWeekInMonth is positive, they specify the
      *       first specified day of the week on or after the specfied day of the month.
      *       (e.g., (15, -SUNDAY) is the first Sunday after the 15th of the month
      *       [or the 15th itself if the 15th is a Sunday].)</li>
      *   <li>If dayOfWeek and DayOfWeekInMonth are both negative, they specify the
      *       last specified day of the week on or before the specified day of the month.
      *       (e.g., (-20, -TUESDAY) is the last Tuesday before the 20th of the month
      *       [or the 20th itself if the 20th is a Tuesday].)</li>
      * </ul>
      * @param month the daylight savings starting month. Month is 0-based.
      * eg, 0 for January.
      * @param dayOfWeekInMonth the daylight savings starting
      * day-of-week-in-month. Please see the member description for an example.
      * @param dayOfWeek the daylight savings starting day-of-week. Please see
      * the member description for an example.
      * @param time the daylight savings starting time. Please see the member
      * description for an example.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
                       int32_t time, TimeMode mode, UErrorCode& status);
     /**
      * Sets the DST start rule to a fixed date within a month.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    The date in that month (1-based).
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST takes effect in local wall time, which is
      *                      standard time in this case.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
                       UErrorCode& status);
     /**
      * Sets the DST start rule to a fixed date within a month.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    The date in that month (1-based).
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST takes effect in local wall time, which is
      *                      standard time in this case.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
                       TimeMode mode, UErrorCode& status);
     /**
      * Sets the DST start rule to a weekday before or after a give date within
      * a month, e.g., the first Monday on or after the 8th.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    A date within that month (1-based).
      * @param dayOfWeek     The day of the week on which this rule occurs.
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST takes effect in local wall time, which is
      *                      standard time in this case.
      * @param after         If true, this rule selects the first dayOfWeek on
      *                      or after dayOfMonth.  If false, this rule selects
      *                      the last dayOfWeek on or before dayOfMonth.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
                       int32_t time, UBool after, UErrorCode& status);
     /**
      * Sets the DST start rule to a weekday before or after a give date within
      * a month, e.g., the first Monday on or after the 8th.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    A date within that month (1-based).
      * @param dayOfWeek     The day of the week on which this rule occurs.
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST takes effect in local wall time, which is
      *                      standard time in this case.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param after         If true, this rule selects the first dayOfWeek on
      *                      or after dayOfMonth.  If false, this rule selects
      *                      the last dayOfWeek on or before dayOfMonth.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
                       int32_t time, TimeMode mode, UBool after, UErrorCode& status);
     /**
      * Sets the daylight savings ending rule. For example, if Daylight
      * Savings Time ends at the last (-1) Sunday in October, at 2 AM in standard time.
      * Therefore, you can set the end rule by calling:
      * <pre>
      *    setEndRule(UCAL_OCTOBER, -1, UCAL_SUNDAY, 2*60*60*1000);
      * </pre>
      * Various other types of rules can be specified by manipulating the dayOfWeek
      * and dayOfWeekInMonth parameters.  For complete details, see the documentation
      * for setStartRule().
      *
      * @param month the daylight savings ending month. Month is 0-based.
      * eg, 0 for January.
      * @param dayOfWeekInMonth the daylight savings ending
      * day-of-week-in-month. See setStartRule() for a complete explanation.
      * @param dayOfWeek the daylight savings ending day-of-week. See setStartRule()
      * for a complete explanation.
      * @param time the daylight savings ending time. Please see the member
      * description for an example.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
                     int32_t time, UErrorCode& status);
     /**
      * Sets the daylight savings ending rule. For example, if Daylight
      * Savings Time ends at the last (-1) Sunday in October, at 2 AM in standard time.
      * Therefore, you can set the end rule by calling:
      * <pre>
      *    setEndRule(UCAL_OCTOBER, -1, UCAL_SUNDAY, 2*60*60*1000);
      * </pre>
      * Various other types of rules can be specified by manipulating the dayOfWeek
      * and dayOfWeekInMonth parameters.  For complete details, see the documentation
      * for setStartRule().
      *
      * @param month the daylight savings ending month. Month is 0-based.
      * eg, 0 for January.
      * @param dayOfWeekInMonth the daylight savings ending
      * day-of-week-in-month. See setStartRule() for a complete explanation.
      * @param dayOfWeek the daylight savings ending day-of-week. See setStartRule()
      * for a complete explanation.
      * @param time the daylight savings ending time. Please see the member
      * description for an example.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
                     int32_t time, TimeMode mode, UErrorCode& status);
     /**
      * Sets the DST end rule to a fixed date within a month.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    The date in that month (1-based).
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST ends in local wall time, which is daylight
      *                      time in this case.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time, UErrorCode& status);
     /**
      * Sets the DST end rule to a fixed date within a month.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    The date in that month (1-based).
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST ends in local wall time, which is daylight
      *                      time in this case.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time,
                     TimeMode mode, UErrorCode& status);
     /**
      * Sets the DST end rule to a weekday before or after a give date within
      * a month, e.g., the first Monday on or after the 8th.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    A date within that month (1-based).
      * @param dayOfWeek     The day of the week on which this rule occurs.
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST ends in local wall time, which is daylight
      *                      time in this case.
      * @param after         If true, this rule selects the first dayOfWeek on
      *                      or after dayOfMonth.  If false, this rule selects
      *                      the last dayOfWeek on or before dayOfMonth.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
                     int32_t time, UBool after, UErrorCode& status);
     /**
      * Sets the DST end rule to a weekday before or after a give date within
      * a month, e.g., the first Monday on or after the 8th.
      *
      * @param month         The month in which this rule occurs (0-based).
      * @param dayOfMonth    A date within that month (1-based).
      * @param dayOfWeek     The day of the week on which this rule occurs.
      * @param time          The time of that day (number of millis after midnight)
      *                      when DST ends in local wall time, which is daylight
      *                      time in this case.
      * @param mode whether the time is local wall time, local standard time,
      * or UTC time. Default is local wall time.
      * @param after         If true, this rule selects the first dayOfWeek on
      *                      or after dayOfMonth.  If false, this rule selects
      *                      the last dayOfWeek on or before dayOfMonth.
      * @param status An UErrorCode
      * @stable ICU 2.0
      */
     void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
                     int32_t time, TimeMode mode, UBool after, UErrorCode& status);
     /**
      * Returns the TimeZone's adjusted GMT offset (i.e., the number of milliseconds to add
      * to GMT to get local time in this time zone, taking daylight savings time into
      * account) as of a particular reference date.  The reference date is used to determine
      * whether daylight savings time is in effect and needs to be figured into the offset
      * that is returned (in other words, what is the adjusted GMT offset in this time zone
      * at this particular date and time?).  For the time zones produced by createTimeZone(),
      * the reference data is specified according to the Gregorian calendar, and the date
      * and time fields are in GMT, NOT local time.
      *
      * @param era        The reference date's era
      * @param year       The reference date's year
      * @param month      The reference date's month (0-based; 0 is January)
      * @param day        The reference date's day-in-month (1-based)
      * @param dayOfWeek  The reference date's day-of-week (1-based; 1 is Sunday)
      * @param millis     The reference date's milliseconds in day, UTT (NOT local time).
      * @param status     An UErrorCode to receive the status.
      * @return           The offset in milliseconds to add to GMT to get local time.
      * @stable ICU 2.0
      */
     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
                               uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const;
     /**
      * Gets the time zone offset, for current date, modified in case of
      * daylight savings. This is the offset to add *to* UTC to get local time.
      * @param era the era of the given date.
      * @param year the year in the given date.
      * @param month the month in the given date.
      * Month is 0-based. e.g., 0 for January.
      * @param day the day-in-month of the given date.
      * @param dayOfWeek the day-of-week of the given date.
      * @param milliseconds the millis in day in <em>standard</em> local time.
      * @param monthLength the length of the given month in days.
      * @param status     An UErrorCode to receive the status.
      * @return the offset to add *to* GMT to get local time.
      * @stable ICU 2.0
      */
     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
                            uint8_t dayOfWeek, int32_t milliseconds,
                            int32_t monthLength, UErrorCode& status) const;
     /**
      * Gets the time zone offset, for current date, modified in case of
      * daylight savings. This is the offset to add *to* UTC to get local time.
      * @param era the era of the given date.
      * @param year the year in the given date.
      * @param month the month in the given date.
      * Month is 0-based. e.g., 0 for January.
      * @param day the day-in-month of the given date.
      * @param dayOfWeek the day-of-week of the given date.
      * @param milliseconds the millis in day in <em>standard</em> local time.
      * @param monthLength the length of the given month in days.
      * @param prevMonthLength length of the previous month in days.
      * @param status     An UErrorCode to receive the status.
      * @return the offset to add *to* GMT to get local time.
      * @stable ICU 2.0
      */
     virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
                               uint8_t dayOfWeek, int32_t milliseconds,
                               int32_t monthLength, int32_t prevMonthLength,
                               UErrorCode& status) const;
     /**
      * Redeclared TimeZone method.  This implementation simply calls
      * the base class method, which otherwise would be hidden.
      * @stable ICU 2.8
      */
     virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
                            int32_t& dstOffset, UErrorCode& ec) const;
     /**
      * Get time zone offsets from local wall time.
      * @internal
      */
     virtual void getOffsetFromLocal(UDate date, int32_t nonExistingTimeOpt, int32_t duplicatedTimeOpt,
         int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const;
     /**
      * Returns the TimeZone's raw GMT offset (i.e., the number of milliseconds to add
      * to GMT to get local time, before taking daylight savings time into account).
      *
      * @return   The TimeZone's raw GMT offset.
      * @stable ICU 2.0
      */
     virtual int32_t getRawOffset(void) const;
     /**
      * Sets the TimeZone's raw GMT offset (i.e., the number of milliseconds to add
      * to GMT to get local time, before taking daylight savings time into account).
      *
      * @param offsetMillis  The new raw GMT offset for this time zone.
      * @stable ICU 2.0
      */
     virtual void setRawOffset(int32_t offsetMillis);
     /**
      * Sets the amount of time in ms that the clock is advanced during DST.
      * @param millisSavedDuringDST the number of milliseconds the time is
      * advanced with respect to standard time when the daylight savings rules
      * are in effect. A positive number, typically one hour (3600000).
      * @param status  An UErrorCode to receive the status.
      * @stable ICU 2.0
      */
     void setDSTSavings(int32_t millisSavedDuringDST, UErrorCode& status);
     /**
      * Returns the amount of time in ms that the clock is advanced during DST.
      * @return the number of milliseconds the time is
      * advanced with respect to standard time when the daylight savings rules
      * are in effect. A positive number, typically one hour (3600000).
      * @stable ICU 2.0
      */
     virtual int32_t getDSTSavings(void) const;
     /**
      * Queries if this TimeZone uses Daylight Savings Time.
      *
      * @return   True if this TimeZone uses Daylight Savings Time; false otherwise.
      * @stable ICU 2.0
      */
     virtual UBool useDaylightTime(void) const;
     /**
      * Returns true if the given date is within the period when daylight savings time
      * is in effect; false otherwise.  If the TimeZone doesn't observe daylight savings
      * time, this functions always returns false.
      * This method is wasteful since it creates a new GregorianCalendar and
      * deletes it each time it is called. This is a deprecated method
      * and provided only for Java compatibility.
      *
      * @param date The date to test.
      * @param status  An UErrorCode to receive the status.
      * @return true if the given date is in Daylight Savings Time;
      * false otherwise.
      * @deprecated ICU 2.4. Use Calendar::inDaylightTime() instead.
      */
     virtual UBool inDaylightTime(UDate date, UErrorCode& status) const;
     /**
      * Return true if this zone has the same rules and offset as another zone.
      * @param other the TimeZone object to be compared with
      * @return true if the given zone has the same rules and offset as this one
      * @stable ICU 2.0
      */
     UBool hasSameRules(const TimeZone& other) const;
     /**
      * Clones TimeZone objects polymorphically. Clients are responsible for deleting
      * the TimeZone object cloned.
      *
      * @return   A new copy of this TimeZone object.
      * @stable ICU 2.0
      */
     virtual TimeZone* clone(void) const;
     /**
      * Gets the first time zone transition after the base time.
      * @param base      The base time.
      * @param inclusive Whether the base time is inclusive or not.
      * @param result    Receives the first transition after the base time.
      * @return  TRUE if the transition is found.
      * @stable ICU 3.8
      */
     virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const;
     /**
      * Gets the most recent time zone transition before the base time.
      * @param base      The base time.
      * @param inclusive Whether the base time is inclusive or not.
      * @param result    Receives the most recent transition before the base time.
      * @return  TRUE if the transition is found.
      * @stable ICU 3.8
      */
     virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const;
     /**
      * Returns the number of <code>TimeZoneRule</code>s which represents time transitions,
      * for this time zone, that is, all <code>TimeZoneRule</code>s for this time zone except
      * <code>InitialTimeZoneRule</code>.  The return value range is 0 or any positive value.
      * @param status    Receives error status code.
      * @return The number of <code>TimeZoneRule</code>s representing time transitions.
      * @stable ICU 3.8
      */
     virtual int32_t countTransitionRules(UErrorCode& status) const;
     /**
      * Gets the <code>InitialTimeZoneRule</code> and the set of <code>TimeZoneRule</code>
      * which represent time transitions for this time zone.  On successful return,
      * the argument initial points to non-NULL <code>InitialTimeZoneRule</code> and
      * the array trsrules is filled with 0 or multiple <code>TimeZoneRule</code>
      * instances up to the size specified by trscount.  The results are referencing the
      * rule instance held by this time zone instance.  Therefore, after this time zone
      * is destructed, they are no longer available.
      * @param initial       Receives the initial timezone rule
      * @param trsrules      Receives the timezone transition rules
      * @param trscount      On input, specify the size of the array 'transitions' receiving
      *                      the timezone transition rules.  On output, actual number of
      *                      rules filled in the array will be set.
      * @param status        Receives error status code.
      * @stable ICU 3.8
      */
     virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
         const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const;
 public:
     /**
      * Override TimeZone Returns a unique class ID POLYMORPHICALLY. Pure virtual
      * override. This method is to implement a simple version of RTTI, since not all C++
      * compilers support genuine RTTI. Polymorphic operator==() and clone() methods call
      * this method.
      *
      * @return   The class ID for this object. All objects of a given class have the
      *           same class ID. Objects of other classes have different class IDs.
      * @stable ICU 2.0
      */
     virtual UClassID getDynamicClassID(void) const;
     /**
      * Return the class ID for this class. This is useful only for comparing to a return
      * value from getDynamicClassID(). For example:
      * <pre>
      * .   Base* polymorphic_pointer = createPolymorphicObject();
      * .   if (polymorphic_pointer->getDynamicClassID() ==
      * .       Derived::getStaticClassID()) ...
      * </pre>
      * @return   The class ID for all objects of this class.
      * @stable ICU 2.0
      */
     static UClassID U_EXPORT2 getStaticClassID(void);
 private:
     /**
      * Constants specifying values of startMode and endMode.
      */
     enum EMode
     {
         DOM_MODE = 1,
         DOW_IN_MONTH_MODE,
         DOW_GE_DOM_MODE,
         DOW_LE_DOM_MODE
     };
     SimpleTimeZone(); // default constructor not implemented
     /**
      * Internal construction method.
      * @param rawOffsetGMT    The new SimpleTimeZone's raw GMT offset
      * @param startMonth      the month DST starts
      * @param startDay        the day DST starts
      * @param startDayOfWeek  the DOW DST starts
      * @param startTime       the time DST starts
      * @param startTimeMode   Whether the start time is local wall time, local
      *                        standard time, or UTC time. Default is local wall time.
      * @param endMonth        the month DST ends
      * @param endDay          the day DST ends
      * @param endDayOfWeek    the DOW DST ends
      * @param endTime         the time DST ends
      * @param endTimeMode     Whether the end time is local wall time, local
      *                        standard time, or UTC time. Default is local wall time.
      * @param dstSavings      The number of milliseconds added to standard time
      *                        to get DST time. Default is one hour.
      * @param status          An UErrorCode to receive the status.
      */
     void construct(int32_t rawOffsetGMT,
                    int8_t startMonth, int8_t startDay, int8_t startDayOfWeek,
                    int32_t startTime, TimeMode startTimeMode,
                    int8_t endMonth, int8_t endDay, int8_t endDayOfWeek,
                    int32_t endTime, TimeMode endTimeMode,
                    int32_t dstSavings, UErrorCode& status);
     /**
      * Compare a given date in the year to a rule. Return 1, 0, or -1, depending
      * on whether the date is after, equal to, or before the rule date. The
      * millis are compared directly against the ruleMillis, so any
      * standard-daylight adjustments must be handled by the caller.
      *
      * @return  1 if the date is after the rule date, -1 if the date is before
      *          the rule date, or 0 if the date is equal to the rule date.
      */
     static int32_t compareToRule(int8_t month, int8_t monthLen, int8_t prevMonthLen,
                                  int8_t dayOfMonth,
                                  int8_t dayOfWeek, int32_t millis, int32_t millisDelta,
                                  EMode ruleMode, int8_t ruleMonth, int8_t ruleDayOfWeek,
                                  int8_t ruleDay, int32_t ruleMillis);
     /**
      * Given a set of encoded rules in startDay and startDayOfMonth, decode
      * them and set the startMode appropriately.  Do the same for endDay and
      * endDayOfMonth.
      * <P>
      * Upon entry, the day of week variables may be zero or
      * negative, in order to indicate special modes.  The day of month
      * variables may also be negative.
      * <P>
      * Upon exit, the mode variables will be
      * set, and the day of week and day of month variables will be positive.
      * <P>
      * This method also recognizes a startDay or endDay of zero as indicating
      * no DST.
      */
     void decodeRules(UErrorCode& status);
     void decodeStartRule(UErrorCode& status);
     void decodeEndRule(UErrorCode& status);
     int8_t startMonth, startDay, startDayOfWeek;   // the month, day, DOW, and time DST starts
     int32_t startTime;
     TimeMode startTimeMode, endTimeMode; // Mode for startTime, endTime; see TimeMode
     int8_t endMonth, endDay, endDayOfWeek; // the month, day, DOW, and time DST ends
     int32_t endTime;
     int32_t startYear;  // the year these DST rules took effect
     int32_t rawOffset;  // the TimeZone's raw GMT offset
     UBool useDaylight; // flag indicating whether this TimeZone uses DST
     static const int8_t STATICMONTHLENGTH[12]; // lengths of the months
     EMode startMode, endMode;   // flags indicating what kind of rules the DST rules are
     /**
      * A positive value indicating the amount of time saved during DST in ms.
      * Typically one hour; sometimes 30 minutes.
      */
     int32_t dstSavings;
     /* Private for BasicTimeZone implementation */
     void checkTransitionRules(UErrorCode& status) const;
     void initTransitionRules(UErrorCode& status);
     void clearTransitionRules(void);
     void deleteTransitionRules(void);
     UBool   transitionRulesInitialized;
     InitialTimeZoneRule*    initialRule;
     TimeZoneTransition*     firstTransition;
     AnnualTimeZoneRule*     stdRule;
     AnnualTimeZoneRule*     dstRule;
 };
 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfWeekInMonth,
                                          int32_t dayOfWeek,
                                          int32_t time, UErrorCode& status) {
     setStartRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
 }
 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
                                          int32_t time,
                                          UErrorCode& status) {
     setStartRule(month, dayOfMonth, time, WALL_TIME, status);
 }
 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
                                          int32_t dayOfWeek,
                                          int32_t time, UBool after, UErrorCode& status) {
     setStartRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
 }
 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfWeekInMonth,
                                        int32_t dayOfWeek,
                                        int32_t time, UErrorCode& status) {
     setEndRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
 }
 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth,
                                        int32_t time, UErrorCode& status) {
     setEndRule(month, dayOfMonth, time, WALL_TIME, status);
 }
 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
                                        int32_t time, UBool after, UErrorCode& status) {
     setEndRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
 }
 inline void
 SimpleTimeZone::getOffset(UDate date, UBool local, int32_t& rawOffsetRef,
                           int32_t& dstOffsetRef, UErrorCode& ec) const {
     TimeZone::getOffset(date, local, rawOffsetRef, dstOffsetRef, ec);
 }
 U_NAMESPACE_END
 #endif /* #if !UCONFIG_NO_FORMATTING */
 #endif // _SIMPLETZ

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intl/icu/source/i18n/unicode/simpletz.h@fc2d59ddac77 (annotated)

intl/icu/source/i18n/unicode/simpletz.h