https://llvm.org/bugs/show_bug.cgi?id=30859
Bug ID: 30859
Summary: Bogus access error when befriending a member function
template specialization
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: rs2...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
>From http://stackoverflow.com/q/40350327/2756719. Repro:
struct X
{
template <class T> static void f() { g<T>(); }
private:
template <class T> static void g() {};
};
struct Y
{
friend void X::f<Y>(); /// #1
};
int main()
{
X::f<Y>();
}
results in the following obviously bogus error:
prog.cc:3:42: error: 'g' is a private member of 'X'
template <class T> static void f() { g<T>(); }
^~~~
prog.cc:15:8: note: in instantiation of function template specialization
'X::f<Y>' requested here
X::f<Y>();
^
prog.cc:5:36: note: declared private here
template <class T> static void g() {};
^
1 error generated.
Commenting out line #1 makes the code compile, suggesting that somehow the
friend declaration caused the access checking to be done in the wrong context.
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