The Tor Browser / file comparison
comparison: intl/icu/source/common/uobject.cpp
intl/icu/source/common/uobject.cpp
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:4e3c7780503c |
|---|---|
| 1 /* | |
| 2 ****************************************************************************** | |
| 3 * | |
| 4 * Copyright (C) 2002-2012, International Business Machines | |
| 5 * Corporation and others. All Rights Reserved. | |
| 6 * | |
| 7 ****************************************************************************** | |
| 8 * file name: uobject.h | |
| 9 * encoding: US-ASCII | |
| 10 * tab size: 8 (not used) | |
| 11 * indentation:4 | |
| 12 * | |
| 13 * created on: 2002jun26 | |
| 14 * created by: Markus W. Scherer | |
| 15 */ | |
| 16 | |
| 17 #include "unicode/uobject.h" | |
| 18 #include "cmemory.h" | |
| 19 | |
| 20 U_NAMESPACE_BEGIN | |
| 21 | |
| 22 #if U_OVERRIDE_CXX_ALLOCATION | |
| 23 | |
| 24 /* | |
| 25 * Default implementation of UMemory::new/delete | |
| 26 * using uprv_malloc() and uprv_free(). | |
| 27 * | |
| 28 * For testing, this is used together with a list of imported symbols to verify | |
| 29 * that ICU is not using the global ::new and ::delete operators. | |
| 30 * | |
| 31 * These operators can be implemented like this or any other appropriate way | |
| 32 * when customizing ICU for certain environments. | |
| 33 * Whenever ICU is customized in binary incompatible ways please be sure | |
| 34 * to use library name suffixes to distinguish such libraries from | |
| 35 * the standard build. | |
| 36 * | |
| 37 * Instead of just modifying these C++ new/delete operators, it is usually best | |
| 38 * to modify the uprv_malloc()/uprv_free()/uprv_realloc() functions in cmemory.c. | |
| 39 * | |
| 40 * Memory test on Windows/MSVC 6: | |
| 41 * The global operators new and delete look as follows: | |
| 42 * 04F 00000000 UNDEF notype () External | ??2@YAPAXI@Z (void * __cdecl operator new(unsigned int)) | |
| 43 * 03F 00000000 UNDEF notype () External | ??3@YAXPAX@Z (void __cdecl operator delete(void *)) | |
| 44 * | |
| 45 * These lines are from output generated by the MSVC 6 tool dumpbin with | |
| 46 * dumpbin /symbols *.obj | |
| 47 * | |
| 48 * ??2@YAPAXI@Z and ??3@YAXPAX@Z are the linker symbols in the .obj | |
| 49 * files and are imported from msvcrtd.dll (in a debug build). | |
| 50 * | |
| 51 * Make sure that with the UMemory operators new and delete defined these two symbols | |
| 52 * do not appear in the dumpbin /symbols output for the ICU libraries! | |
| 53 * | |
| 54 * If such a symbol appears in the output then look in the preceding lines in the output | |
| 55 * for which file and function calls the global new or delete operator, | |
| 56 * and replace with uprv_malloc/uprv_free. | |
| 57 */ | |
| 58 | |
| 59 void * U_EXPORT2 UMemory::operator new(size_t size) U_NO_THROW { | |
| 60 return uprv_malloc(size); | |
| 61 } | |
| 62 | |
| 63 void U_EXPORT2 UMemory::operator delete(void *p) U_NO_THROW { | |
| 64 if(p!=NULL) { | |
| 65 uprv_free(p); | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 void * U_EXPORT2 UMemory::operator new[](size_t size) U_NO_THROW { | |
| 70 return uprv_malloc(size); | |
| 71 } | |
| 72 | |
| 73 void U_EXPORT2 UMemory::operator delete[](void *p) U_NO_THROW { | |
| 74 if(p!=NULL) { | |
| 75 uprv_free(p); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 #if U_HAVE_DEBUG_LOCATION_NEW | |
| 80 void * U_EXPORT2 UMemory::operator new(size_t size, const char* /*file*/, int /*line*/) U_NO_THROW { | |
| 81 return UMemory::operator new(size); | |
| 82 } | |
| 83 | |
| 84 void U_EXPORT2 UMemory::operator delete(void* p, const char* /*file*/, int /*line*/) U_NO_THROW { | |
| 85 UMemory::operator delete(p); | |
| 86 } | |
| 87 #endif /* U_HAVE_DEBUG_LOCATION_NEW */ | |
| 88 | |
| 89 | |
| 90 #endif | |
| 91 | |
| 92 UObject::~UObject() {} | |
| 93 | |
| 94 UClassID UObject::getDynamicClassID() const { return NULL; } | |
| 95 | |
| 96 U_NAMESPACE_END | |
| 97 | |
| 98 U_NAMESPACE_USE | |
| 99 | |
| 100 U_CAPI void U_EXPORT2 | |
| 101 uprv_deleteUObject(void *obj) { | |
| 102 delete static_cast<UObject *>(obj); | |
| 103 } |
