What is the purpose of the move function in C++?

In C++, the std::move() function is used to convert an lvalue to an rvalue reference, allowing for the implementation of move semantics. Move semantics is an optimization technique that helps avoid unnecessary data copying, thereby improving program performance. By using std::move() function, the ownership of an object’s resources can be transferred from one object to another without the need for data copying. This is particularly useful when working with dynamic memory allocation, move constructors, and move assignment operators.