Should std::move be applied to objects of a certain class for resource optimization?

Applying std::move to objects of a specific class should only be done if that class supports move semantics, meaning it has a properly implemented move constructor and move assignment operator. This allows efficient transfer of resources (such as dynamic memory) without copying.

If the class does not support moving, using std::move will not provide any benefit and may lead to errors or suboptimal code.

Example of usage:

std::vector<int> v = {1, 2, 3};
std::vector<int> v2 = std::move(v); // v2 takes resources from v, v becomes empty

Therefore, std::move should be used when you explicitly want to indicate that an object can be moved, and the class supports it.