feat(cmat): Completed Ex61 Part 2

cmat/Ex61/Person.cpp

@@ -1,10 +1,17 @@
 #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");

cmat/Ex61/Person.h

@@ -3,6 +3,7 @@
 #ifndef Person_h
 #define Person_h
 
+#include <memory>
 #include <string>
 
 class Person {
@@ -15,6 +16,8 @@ class Person {
 
     void setSalary(int sal);
 
+    static std::shared_ptr<Person> GetPerson(std::string name, int age);
+
   private:
     Person(const Person &);
 

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;