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?? appendable.h(8.54 KB)
?? basictz.h(9.99 KB)
?? brkiter.h(27.86 KB)
?? bytestream.h(10.75 KB)
?? bytestrie.h(20.8 KB)
?? bytestriebuilder.h(7.48 KB)
?? calendar.h(106.52 KB)
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?? casemap.h(25.42 KB)
?? char16ptr.h(7.22 KB)
?? chariter.h(24.06 KB)
?? choicfmt.h(24 KB)
?? coleitr.h(13.78 KB)
?? coll.h(56.3 KB)
?? compactdecimalformat.h(6.88 KB)
?? curramt.h(3.67 KB)
?? currpinf.h(7.3 KB)
?? currunit.h(4.02 KB)
?? datefmt.h(40.72 KB)
?? dbbi.h(1.19 KB)
?? dcfmtsym.h(20.94 KB)
?? decimfmt.h(87.54 KB)
?? displayoptions.h(7.08 KB)
?? docmain.h(7.3 KB)
?? dtfmtsym.h(38.23 KB)
?? dtintrv.h(3.85 KB)
?? dtitvfmt.h(49.26 KB)
?? dtitvinf.h(18.63 KB)
?? dtptngen.h(28.64 KB)
?? dtrule.h(8.69 KB)
?? edits.h(20.73 KB)
?? enumset.h(2.08 KB)
?? errorcode.h(4.84 KB)
?? fieldpos.h(8.7 KB)
?? filteredbrk.h(5.37 KB)
?? fmtable.h(24.45 KB)
?? format.h(12.5 KB)
?? formattednumber.h(6.15 KB)
?? formattedvalue.h(9.75 KB)
?? fpositer.h(3.03 KB)
?? gender.h(3.35 KB)
?? gregocal.h(30.03 KB)
?? icudataver.h(1.02 KB)
?? icuplug.h(12.1 KB)
?? idna.h(12.71 KB)
?? listformatter.h(8.59 KB)
?? localebuilder.h(11.08 KB)
?? localematcher.h(26.83 KB)
?? localpointer.h(19.44 KB)
?? locdspnm.h(7.12 KB)
?? locid.h(48.27 KB)
?? measfmt.h(11.42 KB)
?? measunit.h(107.38 KB)
?? measure.h(4.69 KB)
?? messagepattern.h(33.72 KB)
?? msgfmt.h(44.21 KB)
?? normalizer2.h(34.73 KB)
?? normlzr.h(30.97 KB)
?? nounit.h(2.25 KB)
?? numberformatter.h(90.03 KB)
?? numberrangeformatter.h(25.32 KB)
?? numfmt.h(50.26 KB)
?? numsys.h(7.23 KB)
?? parseerr.h(3.08 KB)
?? parsepos.h(5.57 KB)
?? platform.h(27.8 KB)
?? plurfmt.h(25.25 KB)
?? plurrule.h(20.64 KB)
?? ptypes.h(3.49 KB)
?? putil.h(6.32 KB)
?? rbbi.h(32.07 KB)
?? rbnf.h(49.92 KB)
?? rbtz.h(15.77 KB)
?? regex.h(84.45 KB)
?? region.h(9.2 KB)
?? reldatefmt.h(22.36 KB)
?? rep.h(9.38 KB)
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?? simpleformatter.h(12.6 KB)
?? simplenumberformatter.h(8.88 KB)
?? simpletz.h(45.65 KB)
?? smpdtfmt.h(71.85 KB)
?? sortkey.h(11.19 KB)
?? std_string.h(1.05 KB)
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?? stringtriebuilder.h(15.5 KB)
?? stsearch.h(21.44 KB)
?? symtable.h(4.28 KB)
?? tblcoll.h(36.94 KB)
?? timezone.h(45.67 KB)
?? tmunit.h(3.4 KB)
?? tmutamt.h(4.91 KB)
?? tmutfmt.h(7.42 KB)
?? translit.h(65.83 KB)
?? tzfmt.h(42.96 KB)
?? tznames.h(16.85 KB)
?? tzrule.h(34.86 KB)
?? tztrans.h(6.13 KB)
?? ubidi.h(89.61 KB)
?? ubiditransform.h(12.71 KB)
?? ubrk.h(24.43 KB)
?? ucal.h(64.28 KB)
?? ucasemap.h(15.21 KB)
?? ucat.h(5.35 KB)
?? uchar.h(145.7 KB)
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?? ucharstriebuilder.h(7.48 KB)
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?? uclean.h(11.21 KB)
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?? ucol.h(62.7 KB)
?? ucoleitr.h(9.82 KB)
?? uconfig.h(12.31 KB)
?? ucpmap.h(5.54 KB)
?? ucptrie.h(22.51 KB)
?? ucsdet.h(14.69 KB)
?? ucurr.h(16.72 KB)
?? udat.h(62.36 KB)
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?? udateintervalformat.h(11.93 KB)
?? udatpg.h(30.13 KB)
?? udisplaycontext.h(5.94 KB)
?? udisplayoptions.h(8.86 KB)
?? uenum.h(7.79 KB)
?? ufieldpositer.h(4.41 KB)
?? uformattable.h(10.97 KB)
?? uformattednumber.h(8.09 KB)
?? uformattedvalue.h(12.25 KB)
?? ugender.h(2.06 KB)
?? uidna.h(33.43 KB)
?? uiter.h(22.75 KB)
?? uldnames.h(10.48 KB)
?? ulistformatter.h(10.78 KB)
?? uloc.h(54.66 KB)
?? ulocale.h(6.35 KB)
?? ulocbuilder.h(16.72 KB)
?? ulocdata.h(11.3 KB)
?? umachine.h(15 KB)
?? umisc.h(1.34 KB)
?? umsg.h(24.25 KB)
?? umutablecptrie.h(8.3 KB)
?? unifilt.h(4 KB)
?? unifunct.h(4.05 KB)
?? unimatch.h(6.1 KB)
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?? unorm.h(20.55 KB)
?? unorm2.h(25.71 KB)
?? unum.h(55.16 KB)
?? unumberformatter.h(19.68 KB)
?? unumberoptions.h(5.23 KB)
?? unumberrangeformatter.h(15.35 KB)
?? unumsys.h(7.26 KB)
?? uobject.h(10.66 KB)
?? upluralrules.h(8.79 KB)
?? uregex.h(71.99 KB)
?? uregion.h(9.81 KB)
?? ureldatefmt.h(16.98 KB)
?? urename.h(140.82 KB)
?? urep.h(5.38 KB)
?? ures.h(36.65 KB)
?? uscript.h(27.8 KB)
?? usearch.h(39.21 KB)
?? uset.h(45.61 KB)
?? usetiter.h(9.63 KB)
?? ushape.h(18 KB)
?? usimplenumberformatter.h(7.46 KB)
?? uspoof.h(80.32 KB)
?? usprep.h(8.19 KB)
?? ustdio.h(38.56 KB)
?? ustream.h(1.89 KB)
?? ustring.h(72.13 KB)
?? ustringtrie.h(3.15 KB)
?? utext.h(58.1 KB)
?? utf.h(7.87 KB)
?? utf16.h(23.35 KB)
?? utf32.h(763 B)
?? utf8.h(30.83 KB)
?? utf_old.h(45.8 KB)
?? utmscale.h(13.78 KB)
?? utrace.h(17.18 KB)
?? utrans.h(25.54 KB)
?? utypes.h(31.06 KB)
?? uvernum.h(6.33 KB)
?? uversion.h(5.99 KB)
?? vtzone.h(20.69 KB)

Editing: basictz.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2007-2013, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*/
#ifndef BASICTZ_H
#define BASICTZ_H

/**
 * \file 
 * \brief C++ API: ICU TimeZone base class
 */

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#if !UCONFIG_NO_FORMATTING

#include "unicode/timezone.h"
#include "unicode/tzrule.h"
#include "unicode/tztrans.h"

U_NAMESPACE_BEGIN

// forward declarations
class UVector;

/**
 * <code>BasicTimeZone</code> is an abstract class extending <code>TimeZone</code>.
 * This class provides some additional methods to access time zone transitions and rules.
 * All ICU <code>TimeZone</code> concrete subclasses extend this class.
 * @stable ICU 3.8
 */
class U_I18N_API BasicTimeZone: public TimeZone {
public:
    /**
     * Destructor.
     * @stable ICU 3.8
     */
    virtual ~BasicTimeZone();

/**
     * Clones this object polymorphically.
     * The caller owns the result and should delete it when done.
     * @return clone, or nullptr if an error occurred
     * @stable ICU 3.8
     */
    virtual BasicTimeZone* clone() const override = 0;

/**
     * 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 = 0;

/**
     * 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 = 0;

/**
     * Checks if the time zone has equivalent transitions in the time range.
     * This method returns true when all of transition times, from/to standard
     * offsets and DST savings used by this time zone match the other in the
     * time range.
     * @param tz    The <code>BasicTimeZone</code> object to be compared with.
     * @param start The start time of the evaluated time range (inclusive)
     * @param end   The end time of the evaluated time range (inclusive)
     * @param ignoreDstAmount
     *              When true, any transitions with only daylight saving amount
     *              changes will be ignored, except either of them is zero.
     *              For example, a transition from rawoffset 3:00/dstsavings 1:00
     *              to rawoffset 2:00/dstsavings 2:00 is excluded from the comparison,
     *              but a transition from rawoffset 2:00/dstsavings 1:00 to
     *              rawoffset 3:00/dstsavings 0:00 is included.
     * @param ec    Output param to filled in with a success or an error.
     * @return      true if the other time zone has the equivalent transitions in the
     *              time range.
     * @stable ICU 3.8
     */
    virtual UBool hasEquivalentTransitions(const BasicTimeZone& tz, UDate start, UDate end,
        UBool ignoreDstAmount, UErrorCode& ec) 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 = 0;

/**
     * 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-nullptr <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 = 0;

/**
     * Gets the set of time zone rules valid at the specified time.  Some known external time zone
     * implementations are not capable to handle historic time zone rule changes.  Also some
     * implementations can only handle certain type of rule definitions.
     * If this time zone does not use any daylight saving time within about 1 year from the specified
     * time, only the <code>InitialTimeZone</code> is returned.  Otherwise, the rule for standard
     * time and daylight saving time transitions are returned in addition to the
     * <code>InitialTimeZoneRule</code>.  The standard and daylight saving time transition rules are
     * represented by <code>AnnualTimeZoneRule</code> with <code>DateTimeRule::DOW</code> for its date
     * rule and <code>DateTimeRule::WALL_TIME</code> for its time rule.  Because daylight saving time
     * rule is changing time to time in many time zones and also mapping a transition time rule to
     * different type is lossy transformation, the set of rules returned by this method may be valid
     * for short period of time.
     * The time zone rule objects returned by this method is owned by the caller, so the caller is
     * responsible for deleting them after use.
     * @param date      The date used for extracting time zone rules.
     * @param initial   Receives the <code>InitialTimeZone</code>, always not nullptr.
     * @param std       Receives the <code>AnnualTimeZoneRule</code> for standard time transitions.
     *                  When this time time zone does not observe daylight saving times around the
     *                  specified date, nullptr is set.
     * @param dst       Receives the <code>AnnualTimeZoneRule</code> for daylight saving time
     *                  transitions.  When this time zone does not observer daylight saving times
     *                  around the specified date, nullptr is set.
     * @param status    Receives error status code.
     * @stable ICU 3.8
     */
    virtual void getSimpleRulesNear(UDate date, InitialTimeZoneRule*& initial,
        AnnualTimeZoneRule*& std, AnnualTimeZoneRule*& dst, UErrorCode& status) const;

/**
     * Get time zone offsets from local wall time.
     * @stable ICU 69
     */
    virtual void getOffsetFromLocal(
        UDate date, UTimeZoneLocalOption nonExistingTimeOpt,
        UTimeZoneLocalOption duplicatedTimeOpt, int32_t& rawOffset,
        int32_t& dstOffset, UErrorCode& status) const;

#ifndef U_HIDE_INTERNAL_API
    /**
     * The time type option bit flags used by getOffsetFromLocal
     * @internal
     */
    enum {
        kStandard = 0x01,
        kDaylight = 0x03,
        kFormer = 0x04, /* UCAL_TZ_LOCAL_FORMER */
        kLatter = 0x0C  /* UCAL_TZ_LOCAL_LATTER */
    };

/**
     * Get time zone offsets from local wall time.
     * @internal
     */
    void getOffsetFromLocal(UDate date, int32_t nonExistingTimeOpt, int32_t duplicatedTimeOpt,
        int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const;
#endif  /* U_HIDE_INTERNAL_API */

protected:

#ifndef U_HIDE_INTERNAL_API
    /**
     * A time type option bit mask used by getOffsetFromLocal.
     * @internal
     */
    static constexpr int32_t kStdDstMask = kDaylight;
    /**
     * A time type option bit mask used by getOffsetFromLocal.
     * @internal
     */
    static constexpr int32_t kFormerLatterMask = kLatter;
#endif  /* U_HIDE_INTERNAL_API */

/**
     * Default constructor.
     * @stable ICU 3.8
     */
    BasicTimeZone();

/**
     * Construct a timezone with a given ID.
     * @param id a system time zone ID
     * @stable ICU 3.8
     */
    BasicTimeZone(const UnicodeString &id);

/**
     * Copy constructor.
     * @param source the object to be copied.
     * @stable ICU 3.8
     */
    BasicTimeZone(const BasicTimeZone& source);

/**
     * Copy assignment.
     * @stable ICU 3.8
     */
    BasicTimeZone& operator=(const BasicTimeZone&) = default;

/**
     * Gets the set of TimeZoneRule instances applicable to the specified time and after.
     * @param start     The start date used for extracting time zone rules
     * @param initial   Output parameter, receives the InitialTimeZone.
     *                  Always not nullptr (except in case of error)
     * @param transitionRules   Output parameter, a UVector of transition rules.
     *                  May be nullptr, if there are no transition rules.
     *                  The caller owns the returned vector; the UVector owns the rules.
     * @param status    Receives error status code
     */
    void getTimeZoneRulesAfter(UDate start, InitialTimeZoneRule*& initial, UVector*& transitionRules,
        UErrorCode& status) const;
};

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif /* U_SHOW_CPLUSPLUS_API */

#endif // BASICTZ_H

//eof

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