[LLVMbugs] [Bug 12497] New: protected destructor is considered to be inaccessible

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12497

             Bug #: 12497
           Summary: protected destructor is considered to be inaccessible
           Product: clang
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: jonathan.sauer at gmx.de
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu,
                    rjmccall at apple.com
    Classification: Unclassified


The following code does not compile with clang r154288:

class Foo {
    protected:
        Foo() {}
        ~Foo() {}
};

class Bar: public Foo {
    public:
        Bar() {}
};

int main(int, char**)
{
    Bar b;
}


$ $ ~/LLVM/build/Release+Asserts/bin/clang -std=c++11 -v clang.cpp
clang version 3.1 (trunk 154288)
Target: x86_64-apple-darwin10.8.0
Thread model: posix
[...]
clang.cpp:14:9: error: attempt to use a deleted function
    Bar b;
        ^
clang.cpp:7:12: note: destructor of 'Bar' is implicitly deleted because base
class 'Foo' has an
      inaccessible destructor
class Bar: public Foo {
           ^
1 error generated.


This only happens in C++11 mode. In C++03 mode, the code compiles.

cc-ing John McCall, as this might be a result of his changes in r154248.

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