Is it possible to insert objects in a map, if the class of the object has disabled copy constructor and disabled copy operator? Is move semantics useful here?
#include <map>
class T {
public:
T(int v): x(v) {};
private:
T(const T &other); // disabled!
T &operator=(const T &other); // disabled!
int x;
};
int main() {
std::map<int, T> m;
m[42] = T(24); // compilation error here!
}
edit I was not completely clear. The object is huge, so I don't want to make unnecessary copies of it. But I can modify the code of the class (maybe I need to implement move semantics?) and not the user code (the main function in the example).