Answer
Move semantics let operations transfer resources from an expiring or explicitly movable object. • Rvalue references enable overloads that can modify the source object. • After a standard-library move, the source is valid but may have an unspecified value unless documented otherwise. • Moving can avoid expensive deep copies, but it is not guaranteed to be cheaper for every type.
💡 C++ Example
std::string source = "large value";
std::string destination = std::move(source);
⚡ Quick Revision
Move semantics permit resource transfer from objects that may be modified.