Copyable and non-copyable Objects in C++
In C++, objects can be categorized as either copyable or non-copyable based on whether they can be copied or assigned using the copy constructor and copy assignment operator. The copyability of an object is determined by the presence or absence of these copy operations. Copyable Objects: Copyable objects can be copied and assigned using the copy constructor and copy assignment operator. By default, user-defined types in C++ are copyable unless specific measures are taken to disable or restrict copying. When an object is copied, a new object is created with the same state as the original object. Example of a copyable class: class Copyable { public: Copyable() {} Copyable(const Copyable& other) {} Copyable& operator=(const Copyable& other) { return *this; } }; Non-Copyable Objects: Non-copyable objects cannot be copied or assigned using the copy constructor and copy assignment operator. This is often intentional when dealing with resources that should not b...