http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52816
Bug #: 52816
Summary: Access to private members inside decltype in the
signature of a member template causes access control
error
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: [email protected]
ReportedBy: [email protected]
When using decltype inside the return type of a member function template, I
receive access control errors for references to private member variables. Here
is a simple example of a failing program:
class c {
int f;
public:
template <typename A>
decltype(f) m(A) const;
};
decltype(c{}.m(0)) i;
The use of old- vs. new-style function declarations does not change the
behavior; neither does whether the class itself is a template. The error I get
from GCC 4.7.0 is:
test.cpp:2:7: error: ‘int c::f’ is private
test.cpp:8:20: error: within this context
I think that is likely to be incorrect since the reference to f is from inside
the body of the class definition itself.
