The following code fails to compile
struct A {
virtual ~A() {}; //make A polymorphic
};
struct B: public A
{
template <typename T2>
class C
{
public:
static void f (A& a)
{
dynamic_cast<B&>( a ).g();
}
};
void g () {}
};
... and issues the following Error message:
test.cpp: In static member function 'static void B::Update<T2>::g(A&)':
test.cpp:21: error: request for member 'g' in 'dynamic_cast<B&>(a)', which is
of non-class type 'B&'
On the other hand, it works if either C is not a template or B is a template.
this fails for 4.1.3, 4.2.2 and 4.3.0
--
Summary: [4.1/4.2/4.3] class& is not known as as a class-type
anymore after dynamic_cast
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rbuergel at web dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34364
