grab and drop

[utunnels]

I have a class with a member which points to a custom scene node class, like:

Code: Select all

class A
{
    ISceneNode* node;
};

Do I have to create a copy constructor and a destructor for that?

Code: Select all

A::A(const A& a)
{
    //copy code
    if(node) node->grab();
}
 
A::~A()
{
    if(node) node->drop();
}
 

[REDDemon]

Code: Select all

 
class A
{
    ISceneNode * MyNode;
public:
 
    void setNode(ISceneNode* node)
    {
        node->grab();
        MyNode->drop();
        MyNode = node;
    }
 
    A(ISceneNode *node)
    {
        (MyNode=node)->grab();
    }
 
    ~A() //destructor
    {
        MyNode->drop();
    }
}
 

[utunnels]

Thank you. It makes sense to me now.