ICU 67.1 67.1

basictz.h
Go to the documentation of this file.
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 U_SHOW_CPLUSPLUS_API
20
21 #if !UCONFIG_NO_FORMATTING
22
23 #include "unicode/timezone.h"
24 #include "unicode/tzrule.h"
25 #include "unicode/tztrans.h"
26
27 U_NAMESPACE_BEGIN
28
29 // forward declarations
30 class UVector;
31
38 class U_I18N_API BasicTimeZone: public TimeZone {
39 public:
44 virtual ~BasicTimeZone();
45
52 virtual BasicTimeZone* clone() const = 0;
53
62 virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const = 0;
63
72 virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const = 0;
73
94 virtual UBool hasEquivalentTransitions(const BasicTimeZone& tz, UDate start, UDate end,
95 UBool ignoreDstAmount, UErrorCode& ec) const;
96
105 virtual int32_t countTransitionRules(UErrorCode& status) const = 0;
106
123 virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
124 const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const = 0;
125
152 virtual void getSimpleRulesNear(UDate date, InitialTimeZoneRule*& initial,
153 AnnualTimeZoneRule*& std, AnnualTimeZoneRule*& dst, UErrorCode& status) const;
154
155
156 #ifndef U_HIDE_INTERNAL_API
157
161 enum {
162 kStandard = 0x01,
163 kDaylight = 0x03,
164 kFormer = 0x04,
165 kLatter = 0x0C
166 };
167 #endif /* U_HIDE_INTERNAL_API */
168
173 virtual void getOffsetFromLocal(UDate date, int32_t nonExistingTimeOpt, int32_t duplicatedTimeOpt,
174 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const;
175
176 protected:
177
178 #ifndef U_HIDE_INTERNAL_API
179
183 enum {
184 kStdDstMask = kDaylight,
185 kFormerLatterMask = kLatter
186 };
187 #endif /* U_HIDE_INTERNAL_API */
188
193 BasicTimeZone();
194
200 BasicTimeZone(const UnicodeString &id);
201
207 BasicTimeZone(const BasicTimeZone& source);
208
213 BasicTimeZone& operator=(const BasicTimeZone&) = default;
214
222 void getTimeZoneRulesAfter(UDate start, InitialTimeZoneRule*& initial, UVector*& transitionRules,
223 UErrorCode& status) const;
224 };
225
226 U_NAMESPACE_END
227
228 #endif /* #if !UCONFIG_NO_FORMATTING */
229
230 #endif /* U_SHOW_CPLUSPLUS_API */
231
232 #endif // BASICTZ_H
233
234 //eof
icu::TimeZone::operator=
TimeZone & operator=(const TimeZone &right)
Default assignment operator.
timezone.h
C++ API: TimeZone object.
UDate
double UDate
Date and Time data type.
Definition: utypes.h:203
icu::TimeZone
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition: timezone.h:133
tztrans.h
C++ API: Time zone transition.
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside...
Definition: utypes.h:301
icu::TimeZoneRule
TimeZoneRule is a class representing a rule for time zone.
Definition: tzrule.h:36
icu::InitialTimeZoneRule
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning...
Definition: tzrule.h:202
icu::TimeZone::clone
virtual TimeZone * clone() const =0
Clones TimeZone objects polymorphically.
icu::TimeZoneTransition
TimeZoneTransition is a class representing a time zone transition.
Definition: tztrans.h:35
tzrule.h
C++ API: Time zone rule classes.
icu::BasicTimeZone
BasicTimeZone is an abstract class extending TimeZone.
Definition: basictz.h:38
icu::AnnualTimeZoneRule
AnnualTimeZoneRule is a class used for representing a time zone rule which takes effect annually...
Definition: tzrule.h:380
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:294
UBool
int8_t UBool
The ICU boolean type.
Definition: umachine.h:261