lst-0001-book.cpp
// https://godbolt.org/z/K1714eWr9
struct Type {
char* data_; // raw pointer can cause unclear ownership
explicit Type(int n) : data_(new char[n]) {}
~Type() { delete[] data_; } // you need the destructor
Type(const Type&) = delete; // do not allow copying
Type& operator=(const Type&) = delete; // no assignment please
Type(Type&&) = delete; // no moving
Type& operator=(Type&&) = delete; // no move assignment operator
};