diff --git a/exec/src/arith/arith.c b/exec/src/arith/arith.c
index 21093347..12e55744 100644
--- a/exec/src/arith/arith.c
+++ b/exec/src/arith/arith.c
@@ -6,7 +6,7 @@
 /*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/07/26 15:14:50 by maiboyer          #+#    #+#             */
-/*   Updated: 2024/07/29 17:50:51 by rparodi          ###   ########.fr       */
+/*   Updated: 2024/07/30 13:17:25 by rparodi          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -71,6 +71,42 @@ t_ast_node	_arith_binary_to_ast_node(t_ast_arithmetic_binary *self)
 					struct s_ast_node, data.arithmetic_binary)));
 }
 
+t_ast_node	_arith_ternary_to_ast_node(t_ast_arithmetic_ternary *self)
+{
+	t_u8	*ptr;
+
+	ptr = (void *)(self);
+	return ((void *)(ptr - offsetof(\
+					struct s_ast_node, data.arithmetic_ternary)));
+}
+
+t_ast_node	_arith_unary_to_ast_node(t_ast_arithmetic_unary *self)
+{
+	t_u8	*ptr;
+
+	ptr = (void *)(self);
+	return ((void *)(ptr - offsetof(\
+					struct s_ast_node, data.arithmetic_unary)));
+}
+
+t_ast_node	_arith_postfix_to_ast_node(t_ast_arithmetic_postfix *self)
+{
+	t_u8	*ptr;
+
+	ptr = (void *)(self);
+	return ((void *)(ptr - offsetof(\
+					struct s_ast_node, data.arithmetic_postfix)));
+}
+
+t_ast_node	_arith_expansion_to_ast_node(t_ast_arithmetic_postfix *self)
+{
+	t_u8	*ptr;
+
+	ptr = (void *)(self);
+	return ((void *)(ptr - offsetof(\
+					struct s_ast_node, data.arithmetic_expansion)));
+}
+
 // this is black magic don't worry
 t_ast_node	_arith_literal_to_ast_node(t_ast_arithmetic_literal *self)
 {
@@ -156,6 +192,7 @@ t_error	run_arithmetic_ternary(t_ast_arithmetic_ternary *arithmetic_ternary, \
 	return (NO_ERROR);
 }
 
+
 t_error	run_arithmetic_postfix( \
 t_ast_arithmetic_postfix *arithmetic_postfix, t_state *state, t_i64 *out)
 {
diff --git a/exec/src/arith/arith.h b/exec/src/arith/arith.h
index 9261054e..ef5930cc 100644
--- a/exec/src/arith/arith.h
+++ b/exec/src/arith/arith.h
@@ -6,7 +6,7 @@
 /*   By: rparodi <rparodi@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/07/27 21:13:15 by rparodi           #+#    #+#             */
-/*   Updated: 2024/07/27 22:51:50 by rparodi          ###   ########.fr       */
+/*   Updated: 2024/07/30 11:59:09 by rparodi          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -15,6 +15,7 @@
 
 # include <stddef.h>
 # include <stdio.h>
+# include <unistd.h>
 
 # include "app/state.h"
 # include "ast/ast.h"