// © 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 */ #include "unicode/uobject.h" #include "cmemory.h" U_NAMESPACE_BEGIN #if U_OVERRIDE_CXX_ALLOCATION /* * Default implementation of UMemory::new/delete * using uprv_malloc() and uprv_free(). * * For testing, this is used together with a list of imported symbols to verify * that ICU is not using the global ::new and ::delete operators. * * These operators can be implemented like this or any other appropriate way * when customizing ICU for certain environments. * Whenever ICU is customized in binary incompatible ways please be sure * to use library name suffixes to distinguish such libraries from * the standard build. * * Instead of just modifying these C++ new/delete operators, it is usually best * to modify the uprv_malloc()/uprv_free()/uprv_realloc() functions in cmemory.c. * * Memory test on Windows/MSVC 6: * The global operators new and delete look as follows: * 04F 00000000 UNDEF notype () External | ??2@YAPAXI@Z (void * __cdecl operator new(unsigned int)) * 03F 00000000 UNDEF notype () External | ??3@YAXPAX@Z (void __cdecl operator delete(void *)) * * These lines are from output generated by the MSVC 6 tool dumpbin with * dumpbin /symbols *.obj * * ??2@YAPAXI@Z and ??3@YAXPAX@Z are the linker symbols in the .obj * files and are imported from msvcrtd.dll (in a debug build). * * Make sure that with the UMemory operators new and delete defined these two symbols * do not appear in the dumpbin /symbols output for the ICU libraries! * * If such a symbol appears in the output then look in the preceding lines in the output * for which file and function calls the global new or delete operator, * and replace with uprv_malloc/uprv_free. */ void * U_EXPORT2 UMemory::operator new(size_t size) U_NO_THROW { return uprv_malloc(size); } void U_EXPORT2 UMemory::operator delete(void *p) U_NO_THROW { if(p!=NULL) { uprv_free(p); } } void * U_EXPORT2 UMemory::operator new[](size_t size) U_NO_THROW { return uprv_malloc(size); } void U_EXPORT2 UMemory::operator delete[](void *p) U_NO_THROW { if(p!=NULL) { uprv_free(p); } } #if U_HAVE_DEBUG_LOCATION_NEW void * U_EXPORT2 UMemory::operator new(size_t size, const char* /*file*/, int /*line*/) U_NO_THROW { return UMemory::operator new(size); } void U_EXPORT2 UMemory::operator delete(void* p, const char* /*file*/, int /*line*/) U_NO_THROW { UMemory::operator delete(p); } #endif /* U_HAVE_DEBUG_LOCATION_NEW */ #endif UObject::~UObject() {} UClassID UObject::getDynamicClassID() const { return NULL; } U_NAMESPACE_END U_NAMESPACE_USE U_CAPI void U_EXPORT2 uprv_deleteUObject(void *obj) { delete static_cast<UObject *>(obj); }