diff --git a/C_Language/constantes.h b/C_Language/constantes.h
new file mode 100644
index 0000000..dd10c86
--- /dev/null
+++ b/C_Language/constantes.h
@@ -0,0 +1,5 @@
+#define NPLEIN 1
+#define NVIDE 2
+#define MUTEX_1 3
+#define MUTEX_2 4
+