https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109649
Bug ID: 109649
Summary: GCC accepts invalid inaccessible friend declaration of
member function
Product: gcc
Version: 13.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jlame646 at gmail dot com
Target Milestone: ---
The following invalid programs explained here:
https://stackoverflow.com/a/76120963/12002570 can be compiled with gcc but
rejected by msvc and clang. See demo: https://godbolt.org/z/Mz8cq3G5n
```
template <typename>
class X {
void f(){}
};
class Y
{
friend void X<int>::f();
};
int main()
{
X<int> t;
t.f();
Y b;
}
```
As we can note the above program compiles with gcc trunk.
