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Diffstat (limited to 'Build/source/libs/icu/icu-xetex/common/uobject.cpp')
-rw-r--r-- | Build/source/libs/icu/icu-xetex/common/uobject.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/common/uobject.cpp b/Build/source/libs/icu/icu-xetex/common/uobject.cpp new file mode 100644 index 00000000000..5fc5423880e --- /dev/null +++ b/Build/source/libs/icu/icu-xetex/common/uobject.cpp @@ -0,0 +1,114 @@ +/* +****************************************************************************** +* +* Copyright (C) 2002-2005, International Business Machines +* Corporation and others. All Rights Reserved. +* +****************************************************************************** +* file name: uobject.h +* encoding: US-ASCII +* 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) { + return uprv_malloc(size); +} + +void U_EXPORT2 UMemory::operator delete(void *p) { + if(p!=NULL) { + uprv_free(p); + } +} + +void * U_EXPORT2 UMemory::operator new[](size_t size) { + return uprv_malloc(size); +} + +void U_EXPORT2 UMemory::operator delete[](void *p) { + 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*/) { + return UMemory::operator new(size); +} + +void U_EXPORT2 UMemory::operator delete(void* p, const char* /*file*/, int /*line*/) { + UMemory::operator delete(p); +} +#endif /* U_HAVE_DEBUG_LOCATION_NEW */ + + +#endif + +UObject::~UObject() {} + +// Future implementation for RTTI that support subtyping. [alan] +// +// UClassID UObject::getStaticClassID() { +// return (UClassID) NULL; +// } +// +// UBool UObject::instanceOf(UClassID type) const { +// UClassID c = getDynamicClassID(); +// for (;;) { +// if (c == type) { +// return TRUE; +// } else if (c == (UClassID) NULL) { +// return FALSE; +// } +// c = * (UClassID*) c; +// } +// } + +U_NAMESPACE_END + + |