add polymorphism

classes/hund.cpp

@@ -1,6 +1,5 @@
-#ifndef TIER_H // ensuring that this object is only initialized once
 #include "tier.cpp"
-#endif
+
 
 class hund : public tier
 {

classes/katze.cpp

@@ -1,6 +1,5 @@
-#ifndef TIER_H //ensuring that this object is only initialized once
 #include "tier.cpp"
-#endif
+
 
 class katze : public tier
 {

classes/main.cpp

@@ -1,12 +1,21 @@
 #include "hund.cpp"
 #include "katze.cpp"
+#include "tier.cpp"
 #include <stdio.h>
 #include <iostream>
 #include <string>
 
-int main(){
-    katze a;
-    std::string laut = a.getLaut();
-    std::cout << laut << std::endl; 
+int main()
+{
+    tier arr[2]; 
+    arr[0] = katze();
+    arr[1] = hund();
+
+    for (size_t i = 0; i < 2; i++)
+    {
+        std::string laut = arr[i].getLaut();
+        std::cout << laut << std::endl;
+    }
+
     return 0;
 }

classes/tier.cpp

@@ -4,17 +4,6 @@
 #include <string>
 #include "tier.h"
 
-// class tier
-// {
-// public:
-//     tier();
-
-//     std::string getLaut();
-
-// protected:
-//     std::string Laut;
-// };
-
 tier::tier()
 {
     this->Laut = "void";