%description:
Test that dynamic_cast works and accepts NULL pointer as input.

%global:

class A {public: virtual ~A() { } };
class B : public A { };

%activity:

A *a1 = new A();
A *a2 = new B();
A *a3 = NULL;

ev << (dynamic_cast<B *>(a1)!=0) << endl;
ev << (dynamic_cast<B *>(a2)!=0) << endl;
ev << (dynamic_cast<B *>(a3)!=0) << endl;

%contains: stdout
0
1
0