[LLVMbugs] [Bug 13380] New: Value/Default initialization of new in LLVM
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Tue Jul 17 04:04:13 PDT 2012
http://llvm.org/bugs/show_bug.cgi?id=13380
Bug #: 13380
Summary: Value/Default initialization of new in LLVM
Product: clang
Version: 3.0
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: C++11
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: naveen.c at samsung.com
CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
Classification: Unclassified
In Clang, initialization done via new don't seem to follow the same
implementation as given in specs.(Ref: Section 5.3.4 para 15)
Ex:
struct A
{
int i;
}
main()
{
a = new A[2]();
printf("%d\n", a[0].i);
}
In the above example, it should initialize 'i' for all indices of array 'a',
however clang proceeds to calling constructor immediately after calling
new[](size_t, void*).
In gcc there's an intermediate step which does the initialization part(inside a
loop) before calling constructor for the object.
Please share your thoughts if the interpretation of specs is correct here.
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