diff --git a/TP4/src/operator.h b/TP4/src/operator.h
index e69de29b..6136657e 100644
--- a/TP4/src/operator.h
+++ b/TP4/src/operator.h
@@ -0,0 +1,13 @@
+#ifndef OPERATOR_H
+#define OPERATOR_H
+
+int somme(int n1, int n2);
+int difference(int n1, int n2);
+int produit(int n1, int n2);
+int quotient(int n1, int n2);
+int modulo(int n1, int n2);
+int et_logique(int n1, int n2);
+int ou_logique(int n1, int n2);
+int negation(int n1, int n2);
+
+#endif