http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60799
Bug ID: 60799
Summary: access checking within injected friend functions does
not happen in the context of the enclosing class
Product: gcc
Version: 4.8.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric.niebler at gmail dot com
The following compiles with clang, but not with gcc-4.8.2
/////////////////////////////////////////////
template<typename T>
struct foo;
template<typename T>
struct bar
{
private:
template<typename U>
friend struct foo;
int x_;
public:
bar() : x_(0) {}
};
template<typename T>
struct foo
{
private:
int x_;
public:
foo() : x_(0) {}
friend bool operator==(foo<T> f, bar<T> b)
{
return f.x_ == b.x_;
}
};
int main()
{
foo<int> f;
bar<int> b;
bool i = (f == b);
}
////////////////////////////////////////////////
Result:
test.cpp: In instantiation of ‘bool operator==(foo<int>, bar<int>)’:
test.cpp:32:18: required from here
test.cpp:10:7: error: ‘int bar<int>::x_’ is private
int x_;
^
test.cpp:24:19: error: within this context
return f.x_ == b.x_;
^
