Exercise: Transform `struct User` Into A Class#

Description #

The files user.h (download) and user.cpp (download) contain declaration and definition of struct User: the structure definition, and the implementation of the constructor. The structure is written in C, in an object oriented style. Transform that struct into an equivalent C++ class.

Identify opportunities for C++ transformation
- C++ brings std::string. See here for documentation.
- The C function user_init() looks like a constructor: it initializes an object of struct User.
Copy both files into your work directory for transformation.

Use the following main program for testing (you are free to modify according to you own testing wishes).

user-main.cpp#

#include "user.h"
#include <iostream>

using namespace std;


int main()
{
    User joerg("Joerg Trittsicher", "Faschingbauer", 55);

    cout << "Firstname: " << joerg.firstname << endl;
    cout << "Lastname: " << joerg.lastname << endl;
    cout << "Age: " << joerg.age << endl;

    return 0;
}

In your work directory’s CMakeLists.txt, add the following to build program user-main:
CMakeLists.txt#
```
ADD_EXECUTABLE(user-main user-main.cpp user.cpp)
```