Move operations

The goal of this exercise is to get some confidence with move semantics, in particular to implement the move operations of a class: the move constructor and the move assignment.

Open the test program string.cpp and complete the existing code to:

• Complete the set of the special member functions so that String is copyable and movable

• Add operator[] (const and non-const) to access a character at a given position

• Add a c_str() member function to access the underlying C-style string

• Use a smart pointer instead of a raw pointer. Note that std::unique/shared_ptr and corresponding make_unique/shared support arrays

The commands to build and run the code are:

$ cd esc25/hands-on/cpp
$ g++ -Wall -Wextra -o string string.cpp
$ ./string
...