ICU 62.1 62.1
basictz.h
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1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4*******************************************************************************
5* Copyright (C) 2007-2013, International Business Machines Corporation and
6* others. All Rights Reserved.
7*******************************************************************************
8*/
9#ifndef BASICTZ_H
10#define BASICTZ_H
11
17#include "unicode/utypes.h"
18
19#if !UCONFIG_NO_FORMATTING
20
21#include "unicode/timezone.h"
22#include "unicode/tzrule.h"
23#include "unicode/tztrans.h"
24
26
27// forward declarations
28class UVector;
29
37public:
42 virtual ~BasicTimeZone();
43
53
63
86
95 virtual int32_t countTransitionRules(UErrorCode& status) const = 0;
96
114 const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const = 0;
115
144
145
146#ifndef U_HIDE_INTERNAL_API
151 enum {
152 kStandard = 0x01,
153 kDaylight = 0x03,
154 kFormer = 0x04,
155 kLatter = 0x0C
156 };
157#endif /* U_HIDE_INTERNAL_API */
158
164 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const;
165
166protected:
167
168#ifndef U_HIDE_INTERNAL_API
173 enum {
174 kStdDstMask = kDaylight,
175 kFormerLatterMask = kLatter
176 };
177#endif /* U_HIDE_INTERNAL_API */
178
184
191
198
207 UErrorCode& status) const;
208};
209
211
212#endif /* #if !UCONFIG_NO_FORMATTING */
213
214#endif // BASICTZ_H
215
216//eof
AnnualTimeZoneRule is a class used for representing a time zone rule which takes effect annually.
Definition tzrule.h:378
BasicTimeZone is an abstract class extending TimeZone.
Definition basictz.h:36
virtual void getOffsetFromLocal(UDate date, int32_t nonExistingTimeOpt, int32_t duplicatedTimeOpt, int32_t &rawOffset, int32_t &dstOffset, UErrorCode &status) const
Get time zone offsets from local wall time.
BasicTimeZone(const UnicodeString &id)
Construct a timezone with a given ID.
void getTimeZoneRulesAfter(UDate start, InitialTimeZoneRule *&initial, UVector *&transitionRules, UErrorCode &status) const
Gets the set of TimeZoneRule instances applicable to the specified time and after.
BasicTimeZone(const BasicTimeZone &source)
Copy constructor.
virtual ~BasicTimeZone()
Destructor.
virtual void getTimeZoneRules(const InitialTimeZoneRule *&initial, const TimeZoneRule *trsrules[], int32_t &trscount, UErrorCode &status) const =0
Gets the InitialTimeZoneRule and the set of TimeZoneRule which represent time transitions for this ti...
virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the first time zone transition after the base time.
BasicTimeZone()
Default constructor.
virtual void getSimpleRulesNear(UDate date, InitialTimeZoneRule *&initial, AnnualTimeZoneRule *&std, AnnualTimeZoneRule *&dst, UErrorCode &status) const
Gets the set of time zone rules valid at the specified time.
virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the most recent time zone transition before the base time.
virtual UBool hasEquivalentTransitions(const BasicTimeZone &tz, UDate start, UDate end, UBool ignoreDstAmount, UErrorCode &ec) const
Checks if the time zone has equivalent transitions in the time range.
virtual int32_t countTransitionRules(UErrorCode &status) const =0
Returns the number of TimeZoneRules which represents time transitions, for this time zone,...
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning...
Definition tzrule.h:200
"Smart pointer" base class; do not use directly: use LocalPointer etc.
TimeZoneRule is a class representing a rule for time zone.
Definition tzrule.h:34
TimeZoneTransition is a class representing a time zone transition.
Definition tztrans.h:33
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition timezone.h:131
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition unistr.h:287
C++ API: TimeZone object.
C++ API: Time zone rule classes.
C++ API: Time zone transition.
int8_t UBool
The ICU boolean type.
Definition umachine.h:236
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
Error code to replace exception handling, so that the code is compatible with all C++ compilers,...
Definition utypes.h:396
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition utypes.h:360
double UDate
Date and Time data type.
Definition utypes.h:203
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
Definition uversion.h:138
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
Definition uversion.h:137