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authorLorry Tar Creator <lorry-tar-importer@baserock.org>2013-12-11 22:24:18 +0000
committer <>2014-07-24 09:30:59 +0000
commit59e2936f588aa945e8dcd6c737523c299067e9d0 (patch)
tree97e74980cc54baa19de5faa11f5a50a0121a48ea /intl/icu/source/common/uobject.cpp
downloadmozjs24-master.tar.gz
Imported from /home/lorry/working-area/delta_mozilla_mozjs24/mozjs-24.2.0.tar.bz2.HEADmozjs-24.2.0master
Diffstat (limited to 'intl/icu/source/common/uobject.cpp')
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diff --git a/intl/icu/source/common/uobject.cpp b/intl/icu/source/common/uobject.cpp
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+/*
+******************************************************************************
+*
+* 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() {}
+
+// 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
+
+U_NAMESPACE_USE
+
+U_CAPI void U_EXPORT2
+uprv_deleteUObject(void *obj) {
+ delete static_cast<UObject *>(obj);
+}