https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61327
Bug ID: 61327
Summary: Problem with friend template object
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: isak50 at mail dot ru
// Although struct Call_check is a friend for the Comp, the compiler reports
// that Cnd1::ch() is protected.
#include <iostream>
#include <type_traits>
template <typename... _Break_expression>
struct Call_check;
template <typename _Type>
struct Call_check<_Type>
{
template <typename _T>
static void call(_T *trend)
{
trend->_Type::ch();
}
};
class Cnd1
{
protected:
void ch(void) {std::cout << "hello from Cnd1\n";}
};
class Comp : Cnd1
{
template <typename...>
friend struct Call_check;
public:
void check() {Call_check<Cnd1>::call(this);}
};
int main()
{
Comp cm;
cm.check();
return 0;
}
