C++ : Creating Objects

Here are 2 simple rules to allocating and deleting objects.

MyObject * myPointer;

while updating object memory always use code like this:

MyObject::update(){
delete myPointer;
myPointer = NULL;
myPointer = MyObject::CreateNew();
}

while deallocating always use code like this:

MyObject::~MyObject(){
delete myPointer;
myPointer = NULL;
}