diff --git a/ex01/iter.hpp b/ex01/iter.hpp
index 1e19c75..ae323f2 100644
--- a/ex01/iter.hpp
+++ b/ex01/iter.hpp
@@ -6,13 +6,19 @@
 /*   By: adjoly <adjoly@student.42angouleme.fr>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/09 14:56:23 by adjoly            #+#    #+#             */
-/*   Updated: 2025/04/09 15:23:21 by adjoly           ###   ########.fr       */
+/*   Updated: 2025/04/19 19:25:36 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #pragma once
 
-template<typename T> void	iter(T *arr, int len, void(func)(T &)) {
+template<typename T> void	iter(T *arr, int len, void(*func)(T &)) {
+	for (int i = 0; i< len; i++) {
+		func(arr[i]);
+	}
+}
+
+template<typename T> void	iter(const T *arr, int len, void(*func)(const T &)) {
 	for (int i = 0; i< len; i++) {
 		func(arr[i]);
 	}
diff --git a/ex01/main.cpp b/ex01/main.cpp
index efde849..8456a3d 100644
--- a/ex01/main.cpp
+++ b/ex01/main.cpp
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42angouleme.fr>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/09 15:17:59 by adjoly            #+#    #+#             */
-/*   Updated: 2025/04/09 15:25:40 by adjoly           ###   ########.fr       */
+/*   Updated: 2025/04/19 19:26:24 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,15 +17,15 @@ void	increment(int &nb) {
 	nb++;
 }
 
-void	printInt(int &nb) {
+void	printInt(const int &nb) {
 	std::cout << nb << std::endl;
 }
 
 int main(void) {
 	int	arr[4] = {1, 2, 3, 4};
 
-	iter(arr, 4, printInt);
+	iter(arr, 4, &printInt);
 	std::cout << "incrementing" << std::endl;
-	iter(arr, 4, increment);
-	iter(arr, 4, printInt);
+	iter(arr, 4, &increment);
+	iter(arr, 4, &printInt);
 }