constructor and destructor

include/stack.h

@@ -1,8 +1,51 @@
 #ifndef STACK_H
 #define STACK_H
 
-class Stack {
+#include <cstdint>
+#include <expected>
 
+#define DEFAULT_STACK_SIZE 4
+
+enum class StackErr {
+    ok,
+    bad_alloc,
+    empty,
 };
 
+template<typename T>
+class Stack {
+private:
+    uint64_t len;
+    uint64_t cap;
+    T *data;
+
+public:
+    Stack();
+    ~Stack();
+
+    std::expected<T, StackErr> pop();
+
+    std::expected<T, StackErr> peek();
+
+    StackErr push(T val);
+
+    void print();
+};
+
+template <typename T>
+Stack<T>::Stack() {
+    Stack<T> new_stack;
+    new_stack.data = new T[DEFAULT_STACK_SIZE];
+    new_stack.cap = 0;
+    new_stack.len = 0;
+    return new_stack;
+}
+
+template <typename T>
+Stack<T>::~Stack() {
+    delete[] this->data;
+}
+
+
+
 #endif // !ST

src/main.cpp

@@ -1,3 +1,4 @@
+#include "stack"
 #include <print>
 
 int main(void) {