summaryrefslogtreecommitdiffstats
path: root/intl/icu/source/common/uobject.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /intl/icu/source/common/uobject.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'intl/icu/source/common/uobject.cpp')
-rw-r--r--intl/icu/source/common/uobject.cpp105
1 files changed, 105 insertions, 0 deletions
diff --git a/intl/icu/source/common/uobject.cpp b/intl/icu/source/common/uobject.cpp
new file mode 100644
index 000000000..37406e4a0
--- /dev/null
+++ b/intl/icu/source/common/uobject.cpp
@@ -0,0 +1,105 @@
+// Copyright (C) 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: 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) 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);
+}