Rule Definition
During construction and destruction of an object, its final type may be different from that of the completely constructed object. The result of using an object’s dynamic type in a constructor or destructor may not be consistent with developer expectations. The dynamic type of an object is used in the following construct: - typeid on a class with a virtual function or a virtual function in a base class.

Remediation
Avoid using object's dynamic type in a constructor or a destructor

Violation Code Sample

class B2
{
public:
virtual ~B2 ( );
virtual void foo ( );
B2 ( )
{
typeid ( B2 ); // Non-compliant

}
};

Fixed Code Sample

class B1
{
public:
B1 ( )
{
typeid ( B1 ); // Compliant, B1 not polymorphic

}
};

MISRA C++ 2008, 12-1-1: An object’s dynamic type shall not be used from the body of its constructor or destructor. AUTOSAR C++ 2014, M12-1-1: An object’s dynamic type shall not be used from the body of its constructor or destructor.