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05/14/2024 03:54:45 PM
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alphaindex.h
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appendable.h
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basictz.h
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brkiter.h
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bytestream.h
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bytestrie.h
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bytestriebuilder.h
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calendar.h
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caniter.h
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casemap.h
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char16ptr.h
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chariter.h
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choicfmt.h
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coleitr.h
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coll.h
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compactdecimalformat.h
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curramt.h
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currpinf.h
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currunit.h
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datefmt.h
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dbbi.h
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dcfmtsym.h
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decimfmt.h
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docmain.h
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dtfmtsym.h
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dtintrv.h
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dtitvfmt.h
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dtitvinf.h
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dtptngen.h
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dtrule.h
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edits.h
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enumset.h
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errorcode.h
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fieldpos.h
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filteredbrk.h
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fmtable.h
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format.h
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formattedvalue.h
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fpositer.h
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gender.h
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gregocal.h
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icudataver.h
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icuplug.h
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idna.h
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listformatter.h
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localebuilder.h
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localematcher.h
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localpointer.h
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locdspnm.h
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locid.h
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measfmt.h
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measunit.h
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measure.h
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messagepattern.h
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msgfmt.h
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normalizer2.h
33.66 KB
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normlzr.h
30.95 KB
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nounit.h
2.25 KB
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numberformatter.h
94.15 KB
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numberrangeformatter.h
25.19 KB
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numfmt.h
49.84 KB
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numsys.h
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parseerr.h
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parsepos.h
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platform.h
28.09 KB
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plurfmt.h
25.24 KB
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plurrule.h
20.82 KB
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ptypes.h
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putil.h
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rbbi.h
28.64 KB
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rbnf.h
48.85 KB
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rbtz.h
15.77 KB
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regex.h
84.36 KB
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region.h
9.18 KB
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reldatefmt.h
22.22 KB
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rep.h
9.37 KB
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resbund.h
18.08 KB
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schriter.h
6.36 KB
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scientificnumberformatter.h
6.43 KB
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search.h
22.22 KB
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selfmt.h
14.34 KB
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simpleformatter.h
12.59 KB
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simpletz.h
45.64 KB
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smpdtfmt.h
71.07 KB
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sortkey.h
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std_string.h
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strenum.h
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stringoptions.h
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stringpiece.h
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stringtriebuilder.h
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stsearch.h
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symtable.h
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tblcoll.h
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timezone.h
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tmunit.h
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tmutamt.h
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tmutfmt.h
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translit.h
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tzfmt.h
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tznames.h
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tzrule.h
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tztrans.h
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ubidi.h
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ubiditransform.h
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ubrk.h
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ucal.h
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ucasemap.h
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ucat.h
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uchar.h
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ucharstrie.h
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ucharstriebuilder.h
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uchriter.h
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uclean.h
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ucnv.h
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ucnv_cb.h
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ucnv_err.h
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ucnvsel.h
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ucol.h
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ucoleitr.h
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uconfig.h
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ucpmap.h
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ucptrie.h
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ucsdet.h
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ucurr.h
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udat.h
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udata.h
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udateintervalformat.h
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udatpg.h
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udisplaycontext.h
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uenum.h
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ufieldpositer.h
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uformattable.h
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uformattedvalue.h
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ugender.h
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uidna.h
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uiter.h
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uldnames.h
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ulistformatter.h
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uloc.h
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ulocdata.h
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umachine.h
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umisc.h
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umsg.h
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umutablecptrie.h
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unifilt.h
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unifunct.h
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unimatch.h
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unirepl.h
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uniset.h
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unistr.h
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unorm.h
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unorm2.h
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unounclass.h
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unum.h
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unumberformatter.h
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unumberrangeformatter.h
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unumsys.h
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uobject.h
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upluralrules.h
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uregex.h
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uregion.h
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ureldatefmt.h
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urename.h
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urep.h
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ures.h
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uscript.h
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usearch.h
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uset.h
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usetiter.h
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ushape.h
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uspoof.h
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usprep.h
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ustdio.h
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ustream.h
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ustring.h
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ustringtrie.h
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utext.h
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utf.h
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utf16.h
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utf32.h
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utf8.h
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utf_old.h
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utmscale.h
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utrace.h
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utrans.h
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utypes.h
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uvernum.h
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uversion.h
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vtzone.h
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Editing: uobject.h
Close
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ****************************************************************************** * * Copyright (C) 2002-2012, International Business Machines * Corporation and others. All Rights Reserved. * ****************************************************************************** * file name: uobject.h * encoding: UTF-8 * tab size: 8 (not used) * indentation:4 * * created on: 2002jun26 * created by: Markus W. Scherer */ #ifndef __UOBJECT_H__ #define __UOBJECT_H__ #include "unicode/utypes.h" #if U_SHOW_CPLUSPLUS_API #include "unicode/platform.h" /** * \file * \brief C++ API: Common ICU base class UObject. */ /** * \def U_NO_THROW * Since ICU 64, use U_NOEXCEPT instead. * * Previously, define this to define the throw() specification so * certain functions do not throw any exceptions * * UMemory operator new methods should have the throw() specification * appended to them, so that the compiler adds the additional NULL check * before calling constructors. Without, if <code>operator new</code> returns NULL the * constructor is still called, and if the constructor references member * data, (which it typically does), the result is a segmentation violation. * * @stable ICU 4.2. Since ICU 64, Use U_NOEXCEPT instead. See ICU-20422. */ #ifndef U_NO_THROW #define U_NO_THROW U_NOEXCEPT #endif /*===========================================================================*/ /* UClassID-based RTTI */ /*===========================================================================*/ /** * UClassID is used to identify classes without using the compiler's RTTI. * This was used before C++ compilers consistently supported RTTI. * ICU 4.6 requires compiler RTTI to be turned on. * * Each class hierarchy which needs * to implement polymorphic clone() or operator==() defines two methods, * described in detail below. UClassID values can be compared using * operator==(). Nothing else should be done with them. * * \par * In class hierarchies that implement "poor man's RTTI", * each concrete subclass implements getDynamicClassID() in the same way: * * \code * class Derived { * public: * virtual UClassID getDynamicClassID() const * { return Derived::getStaticClassID(); } * } * \endcode * * Each concrete class implements getStaticClassID() as well, which allows * clients to test for a specific type. * * \code * class Derived { * public: * static UClassID U_EXPORT2 getStaticClassID(); * private: * static char fgClassID; * } * * // In Derived.cpp: * UClassID Derived::getStaticClassID() * { return (UClassID)&Derived::fgClassID; } * char Derived::fgClassID = 0; // Value is irrelevant * \endcode * @stable ICU 2.0 */ typedef void* UClassID; U_NAMESPACE_BEGIN /** * UMemory is the common ICU base class. * All other ICU C++ classes are derived from UMemory (starting with ICU 2.4). * * This is primarily to make it possible and simple to override the * C++ memory management by adding new/delete operators to this base class. * * To override ALL ICU memory management, including that from plain C code, * replace the allocation functions declared in cmemory.h * * UMemory does not contain any virtual functions. * Common "boilerplate" functions are defined in UObject. * * @stable ICU 2.4 */ class U_COMMON_API UMemory { public: /* test versions for debugging shaper heap memory problems */ #ifdef SHAPER_MEMORY_DEBUG static void * NewArray(int size, int count); static void * GrowArray(void * array, int newSize ); static void FreeArray(void * array ); #endif #if U_OVERRIDE_CXX_ALLOCATION /** * Override for ICU4C C++ memory management. * simple, non-class types are allocated using the macros in common/cmemory.h * (uprv_malloc(), uprv_free(), uprv_realloc()); * they or something else could be used here to implement C++ new/delete * for ICU4C C++ classes * @stable ICU 2.4 */ static void * U_EXPORT2 operator new(size_t size) U_NOEXCEPT; /** * Override for ICU4C C++ memory management. * See new(). * @stable ICU 2.4 */ static void * U_EXPORT2 operator new[](size_t size) U_NOEXCEPT; /** * Override for ICU4C C++ memory management. * simple, non-class types are allocated using the macros in common/cmemory.h * (uprv_malloc(), uprv_free(), uprv_realloc()); * they or something else could be used here to implement C++ new/delete * for ICU4C C++ classes * @stable ICU 2.4 */ static void U_EXPORT2 operator delete(void *p) U_NOEXCEPT; /** * Override for ICU4C C++ memory management. * See delete(). * @stable ICU 2.4 */ static void U_EXPORT2 operator delete[](void *p) U_NOEXCEPT; #if U_HAVE_PLACEMENT_NEW /** * Override for ICU4C C++ memory management for STL. * See new(). * @stable ICU 2.6 */ static inline void * U_EXPORT2 operator new(size_t, void *ptr) U_NOEXCEPT { return ptr; } /** * Override for ICU4C C++ memory management for STL. * See delete(). * @stable ICU 2.6 */ static inline void U_EXPORT2 operator delete(void *, void *) U_NOEXCEPT {} #endif /* U_HAVE_PLACEMENT_NEW */ #if U_HAVE_DEBUG_LOCATION_NEW /** * This method overrides the MFC debug version of the operator new * * @param size The requested memory size * @param file The file where the allocation was requested * @param line The line where the allocation was requested */ static void * U_EXPORT2 operator new(size_t size, const char* file, int line) U_NOEXCEPT; /** * This method provides a matching delete for the MFC debug new * * @param p The pointer to the allocated memory * @param file The file where the allocation was requested * @param line The line where the allocation was requested */ static void U_EXPORT2 operator delete(void* p, const char* file, int line) U_NOEXCEPT; #endif /* U_HAVE_DEBUG_LOCATION_NEW */ #endif /* U_OVERRIDE_CXX_ALLOCATION */ /* * Assignment operator not declared. The compiler will provide one * which does nothing since this class does not contain any data members. * API/code coverage may show the assignment operator as present and * untested - ignore. * Subclasses need this assignment operator if they use compiler-provided * assignment operators of their own. An alternative to not declaring one * here would be to declare and empty-implement a protected or public one. UMemory &UMemory::operator=(const UMemory &); */ }; /** * UObject is the common ICU "boilerplate" class. * UObject inherits UMemory (starting with ICU 2.4), * and all other public ICU C++ classes * are derived from UObject (starting with ICU 2.2). * * UObject contains common virtual functions, in particular a virtual destructor. * * The clone() function is not available in UObject because it is not * implemented by all ICU classes. * Many ICU services provide a clone() function for their class trees, * defined on the service's C++ base class * (which itself is a subclass of UObject). * * @stable ICU 2.2 */ class U_COMMON_API UObject : public UMemory { public: /** * Destructor. * * @stable ICU 2.2 */ virtual ~UObject(); /** * ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class. * The base class implementation returns a dummy value. * * Use compiler RTTI rather than ICU's "poor man's RTTI". * Since ICU 4.6, new ICU C++ class hierarchies do not implement "poor man's RTTI". * * @stable ICU 2.2 */ virtual UClassID getDynamicClassID() const; protected: // the following functions are protected to prevent instantiation and // direct use of UObject itself // default constructor // inline UObject() {} // copy constructor // inline UObject(const UObject &other) {} #if 0 // TODO Sometime in the future. Implement operator==(). // (This comment inserted in 2.2) // some or all of the following "boilerplate" functions may be made public // in a future ICU4C release when all subclasses implement them // assignment operator // (not virtual, see "Taligent's Guide to Designing Programs" pp.73..74) // commented out because the implementation is the same as a compiler's default // UObject &operator=(const UObject &other) { return *this; } // comparison operators virtual inline bool operator==(const UObject &other) const { return this==&other; } inline bool operator!=(const UObject &other) const { return !operator==(other); } // clone() commented out from the base class: // some compilers do not support co-variant return types // (i.e., subclasses would have to return UObject * as well, instead of SubClass *) // see also UObject class documentation. // virtual UObject *clone() const; #endif /* * Assignment operator not declared. The compiler will provide one * which does nothing since this class does not contain any data members. * API/code coverage may show the assignment operator as present and * untested - ignore. * Subclasses need this assignment operator if they use compiler-provided * assignment operators of their own. An alternative to not declaring one * here would be to declare and empty-implement a protected or public one. UObject &UObject::operator=(const UObject &); */ }; #ifndef U_HIDE_INTERNAL_API /** * This is a simple macro to add ICU RTTI to an ICU object implementation. * This does not go into the header. This should only be used in *.cpp files. * * @param myClass The name of the class that needs RTTI defined. * @internal */ #define UOBJECT_DEFINE_RTTI_IMPLEMENTATION(myClass) \ UClassID U_EXPORT2 myClass::getStaticClassID() { \ static char classID = 0; \ return (UClassID)&classID; \ } \ UClassID myClass::getDynamicClassID() const \ { return myClass::getStaticClassID(); } /** * This macro adds ICU RTTI to an ICU abstract class implementation. * This macro should be invoked in *.cpp files. The corresponding * header should declare getStaticClassID. * * @param myClass The name of the class that needs RTTI defined. * @internal */ #define UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(myClass) \ UClassID U_EXPORT2 myClass::getStaticClassID() { \ static char classID = 0; \ return (UClassID)&classID; \ } #endif /* U_HIDE_INTERNAL_API */ U_NAMESPACE_END #endif /* U_SHOW_CPLUSPLUS_API */ #endif