%description:
Subclassing cObject: *must* take ownership of members subclassed from cObject.

Note take(&y) call in the code below. If it wasn't there, crash would occur
at end of simulation because double destruction of 'y': both the simple module
(which is by default the owner of all objects) and X destructor will call
y's destructor.

%global:

class Noisy : public cObject
{
  public:
    Noisy(const char *name=NULL) : cObject(name) {ev << "noisy born\n";}
    ~Noisy() {ev << "noisy died\n";}
};

class X2 : public cObject
{
  public:
    Noisy y;

    X2() : cObject() {
        take(&y);  // try to comment this out and watch what happens
    }

    ~X2() { }
};

%activity:

X2 *x = new X2();
x->y.setName("yname");

%contains-regex: stdout
noisy born.*
noisy died

%not-contains-regex: stdout
noisy died.*
noisy died