From 8792eb3159ee6f353b029819405a510593c8f5a5 Mon Sep 17 00:00:00 2001
From: LaEntropiaa <aadrian887mh@gmail.com>
Date: Sun, 15 Mar 2026 21:28:17 -0600
Subject: [PATCH] added peek, need testing

---
 include/stack.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/stack.h b/include/stack.h
index de54ecb..65ca043 100644
--- a/include/stack.h
+++ b/include/stack.h
@@ -109,4 +109,14 @@ std::expected<T, StackErr> Stack<T>::pop() {
     return std::expected(return_val);
 }
 
+template <typename T>
+requires std::formattable<T, char>
+std::expected<T, StackErr> Stack<T>::peek() {
+    if (this->len == 0) {
+        return std::unexpected(StackErr::empty);
+    }
+
+    return std::expected(this->data[this->len - 1]);
+}
+
 #endif // !ST