diff --git a/push_swap.h b/push_swap.h
new file mode 100644
index 0000000..3bbbc06
--- /dev/null
+++ b/push_swap.h
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   push_swap.h                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/12/08 14:18:06 by dgaillet          #+#    #+#             */
+/*   Updated: 2025/12/08 14:23:40 by dgaillet         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef PUSH_SWAP_H
+# define PUSH_SWAP_H
+
+typedef struct s_stack
+{
+	int		value;
+	s_stack	*next;
+	s_stack	*previous;
+}	t_stack;
+
+#endif
diff --git a/test.c b/stack_functions/.gitkeep
similarity index 100%
rename from test.c
rename to stack_functions/.gitkeep