[LLVMbugs] [Bug 16905] New: __uuidof is modeled strangely semantically, allows strange results

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16905

            Bug ID: 16905
           Summary: __uuidof is modeled strangely semantically, allows
                    strange results
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david.majnemer at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

consider:
struct __declspec(uuid("{12345678-1234-1234-1234-1234567890aB}")) uuid;

template <struct _GUID *>
struct thing {
};

thing<__uuidof(uuid)> x;
thing<&__uuidof(uuid)> y;

We actually let this through. The only reason why we can mangle it is that we
assume that the template parameter is a reference for 'x'.

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