feat(cmat): Completed Ex61 Part 2

cmat/Ex61/Person.cpp

@@ -1,37 +1,44 @@
-#include "Person.h"
-#include "PersonException.h"
-#include "YoungPerson.h"
-#include <iostream>
-
-using std::cout;
-
-Person::Person(std::string name, int age) : name(name), age(age) {
-    if (age < 0) {
-        throw PersonException("negative age");
-    }
-
-    cout << "Person ctor\n";
-    Count++;
-}
-
-Person::Person(const Person &) {
-    cout << "Copy ctor\n";
-    Count++;
-}
-
-Person::~Person() {
-    cout << "Dtor\n";
-    Count--;
-}
-
-void Person::setSalary(int sal) {
-    if (sal < 0) {
-        throw PersonException("negative salary");
-    }
-
-    salary = sal;
-}
-
-int Person::GetCount() { return Count; }
-
-int Person::Count = 0;
+#include "Person.h"
+#include "PersonException.h"
+#include "YoungPerson.h"
+#include <cstddef>
+#include <iostream>
+#include <memory>
+
+using std::cout;
+
+std::shared_ptr<Person> Person::GetPerson(std::string name, int age) {
+    if (age < 18) return std::make_shared<YoungPerson>(name, age);
+    return std::make_shared<Person>(name, age);
+}
+
+Person::Person(std::string name, int age) : name(name), age(age) {
+    if (age < 0) {
+        throw PersonException("negative age");
+    }
+
+    cout << "Person ctor\n";
+    Count++;
+}
+
+Person::Person(const Person &) {
+    cout << "Copy ctor\n";
+    Count++;
+}
+
+Person::~Person() {
+    cout << "Dtor\n";
+    Count--;
+}
+
+void Person::setSalary(int sal) {
+    if (sal < 0) {
+        throw PersonException("negative salary");
+    }
+
+    salary = sal;
+}
+
+int Person::GetCount() { return Count; }
+
+int Person::Count = 0;

cmat/Ex61/Person.h

@@ -1,28 +1,31 @@
-
-
-#ifndef Person_h
-#define Person_h
-
-#include <string>
-
-class Person {
-  public:
-    virtual ~Person();
-
-    static int GetCount();
-
-    Person(std::string name, int age);
-
-    void setSalary(int sal);
-
-  private:
-    Person(const Person &);
-
-    std::string name;
-    int age;
-    int salary;
-
-    static int Count;
-};
-
-#endif
+
+
+#ifndef Person_h
+#define Person_h
+
+#include <memory>
+#include <string>
+
+class Person {
+  public:
+    virtual ~Person();
+
+    static int GetCount();
+
+    Person(std::string name, int age);
+
+    void setSalary(int sal);
+
+    static std::shared_ptr<Person> GetPerson(std::string name, int age);
+
+  private:
+    Person(const Person &);
+
+    std::string name;
+    int age;
+    int salary;
+
+    static int Count;
+};
+
+#endif

cmat/Ex61/main.cpp

@@ -39,7 +39,7 @@ int main() {
                 throw PersonException("invalid age");
             }
 
-            auto personPtr = std::make_shared<Person>(name, age);
+            auto personPtr = Person::GetPerson(name, age);
 
             cout << salaryPrompt;
             cin >> salary;