CareerCup

1 example when you want to supply copy constructor, assignment operators is when your class involves ptrs.

you can overload new if you have custom 'tracing' for memory leaks, if you use your own memory pooling, etc.

Newstart
can you give detail explanation how you will provide your own new operator

A user defined copy constructor is needed when the object owns pointers or non shareable references like files, in such cases a destructor and a assignement operator are also should be over written

auto_ptr and shared_ptr working and implementation.

when deep copy is needed ...

When you deal with different objects

class one{
};

class two {
}

one = two ; is possible when you write your own overloaded = function