Implement 2 destructors.

Signed-off-by: Abdulkadir Furkan Şanlı <me@abdulocra.cy>

bank.cpp

@@ -68,6 +68,26 @@ Bank::closeAccount (Client &x)
   return false; // Account doesn't exist.
 }
 
+// Only used in ~Client
+void
+Bank::closeAccountNoBail (Client &x)
+{
+  for (auto i = clients.begin (); i != clients.end (); i++)
+    if (i->id == x.id)
+      {
+        clients.erase (i);
+        return;
+      }
+}
+
+Client::~Client ()
+{
+  for (auto i : accounts)
+    {
+      i->closeAccountNoBail (*this);
+    }
+}
+
 bool
 Bank::hire (Employee &x)
 {
@@ -263,6 +283,14 @@ Gov::bailout (Bank &x, const double amount)
   return false;
 }
 
+Employee::~Employee ()
+{
+  if (employer != nullptr)
+    {
+      employer->fire (*this);
+    }
+}
+
 int
 main ()
 {
@@ -382,6 +410,21 @@ main ()
   if (joe.getMattress () != 550)
     exit (1);
 
+  { // Test ~Employee
+    Employee tempemp ("underwood");
+    boa.hire (tempemp);
+  }
+  if (boa.countEmployees () != 2)
+    exit (1);
+
+  {
+    Client tempclient ("guy");
+    boa.openAccount (tempclient);
+  }
+  if ((boa.countClients () != 2 && bailed == 1)
+      || (boa.countClients () != 3 && bailed == 0))
+    exit (1);
+
   // Run until both 0 and 1 are seen, in order to test both code paths for
   // bailout.
   cout << "Bailed out: " << bailed << ", all others successful." << endl;

bank.h

@@ -42,6 +42,7 @@ public:
   bool fire (Employee &x);
   bool openAccount (Client &x);
   bool closeAccount (Client &x);
+  void closeAccountNoBail (Client &x);
   // TODO: implement loans, for now there is placeholder loan() and unloan(),
   // in order to simulate loaning and test bailout mechanism.
 
@@ -85,6 +86,7 @@ class Employee
 public:
   std::string name;
   Employee (std::string x) : name (x){};
+  ~Employee ();
 
 private:
   Bank *employer = nullptr;
@@ -97,6 +99,7 @@ class Client
 public:
   std::string id;
   Client (std::string x) : id (x), underMattress (0){};
+  ~Client ();
   double earn (const double amount); // Earn money.
   double getMattress ();