http://llvm.org/bugs/show_bug.cgi?id=8675
Summary: protected member access check should only apply to
functions or data members
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
11.5 is such a great passage. It reads that "When a friend or a member function
of a derived class references a protected nonstatic member function or
protected nonstatic data member of a base class, an access check applies in
addition..."
Consider this testcase:
class Base {
protected:
struct Foo { int i; };
};
struct Derived : public Base {
friend class Friend;
};
struct Friend {
void f() {
Base::Foo foo = { 42 };
}
};
which is accepted by gcc but rejected by clang:
b3224358.cc:12:11: error: 'Foo' is a protected member of 'Base'
Base::Foo foo = { 42 };
^
b3224358.cc:3:10: note: declared protected here
struct Foo { int i; };
^
1 error generated.
In this case, the member is neither a nonstatic function nor a data member of a
base class, so the additional access specified in 11.5 should not apply.
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