chore: Add course material

397/SolutionEx62Bonus2/Main.cpp

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+
+
+#include "Employee.h"
+#include "Person.h"
+#include <algorithm>
+#include <cctype>
+#include <iostream>
+#include <list>
+
+// header for file streams
+#include <fstream>
+// include headers that implement a archive in simple text format and XML format
+#include <boost/archive/text_iarchive.hpp>
+#include <boost/archive/text_oarchive.hpp>
+#include <boost/archive/xml_iarchive.hpp>
+#include <boost/archive/xml_oarchive.hpp>
+// include header that allows serialization of STL list
+#include <boost/serialization/export.hpp>
+#include <boost/serialization/list.hpp>
+#include <boost/serialization/nvp.hpp>
+
+BOOST_CLASS_EXPORT_GUID(Employee, "Employee")
+
+// STL collection of Person*
+std::list<Person *> people;
+
+void add(Person *newP) {
+    // creates a person, collects the information, adds person to list
+    newP->askForInfo();
+    people.push_back(newP);
+}
+
+void showPerson(Person *p) {
+    // displays a person
+    p->display();
+}
+
+void display() {
+    // displays all the people
+    std::for_each(people.begin(), people.end(), &showPerson);
+}
+
+int main() {
+    // deserialize existing file (if there is one)
+    try {
+        // create and open an archive for input
+        std::ifstream ifs("file.xml");
+        boost::archive::xml_iarchive ia(ifs);
+        // read class state from archive
+        ia >> BOOST_SERIALIZATION_NVP(people);
+        // archive and stream closed when destructors are called
+    } catch (...) {
+    }
+
+    char choice = 0;
+
+    while (choice != 'X') {
+        switch (choice) {
+        case 'P':
+            add(new Person());
+            break;
+        case 'E':
+            add(new Employee());
+            break;
+        case 'D':
+            display();
+            break;
+        }
+        std::cout << "Enter choice: Add [P]erson, add [E]mployee, [D]isplay, e[X]it: ";
+        std::cin >> choice;
+        choice = std::toupper(choice);
+    }
+
+    // save data to archive
+    std::ofstream ofs("file.xml");
+    boost::archive::xml_oarchive oa(ofs);
+    oa << BOOST_SERIALIZATION_NVP(people);
+    // archive and stream closed when destructors are called
+
+    return 0;
+}