The following code example is taken from the book
C++ Templates - The Complete Guide
by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
© Copyright David Vandevoorde and Nicolai M. Josuttis 2002
template <typename T>
class Holder {
// previously defined members
//...
public:
Holder (Trule<T> const& t) {
ptr = t.ptr;
const_cast<Trule<T>&>(t).ptr = 0;
}
Holder<T>& operator= (Trule<T> const& t) {
delete ptr;
ptr = t.ptr;
const_cast<Trule<T>&>(t).ptr = 0;
return *this;
}
};