passenden Datentyp als struct angelegt

stack.h

@@ -9,6 +9,14 @@ The latest element is taken from the stack. */
 
 //TODO: passenden Datentyp als struct anlegen
 
+
+typedef struct Node{
+  int data;
+  struct Node *next;
+
+  } StackNode;
+
+
 // Pushes data as pointer onto the stack.
 StackNode *push(StackNode *stack, void *data);