All tests done, just need the documentation and report

include/stack.h

@@ -33,9 +33,17 @@ public:
 
     StackErr push(T val);
 
+    uint64_t size();
+
     void print();
 };
 
+template <typename T>
+requires std::formattable<T, char>
+uint64_t Stack<T>::size() {
+    return this->len;
+}
+
 template <typename T>
 requires std::formattable<T, char>
 Stack<T>::Stack() {
@@ -87,6 +95,7 @@ std::expected<T, StackErr> Stack<T>::pop() {
     }
 
     T return_val = this->data[this->len - 1];
+    this->len--;
 
     if (this->cap / 4 > this->len) {
         uint64_t new_capacity = this->cap / 2;
@@ -106,7 +115,7 @@ std::expected<T, StackErr> Stack<T>::pop() {
         this->data = tmp;
         this->cap = new_capacity;
     }
-
+    
     return return_val;
 }