From 4e5066b7ddd6659e4307c2217084f9eec19936a5 Mon Sep 17 00:00:00 2001
From: alistair <alistair@topost.net>
Date: Sun, 19 Jul 2020 22:48:49 +1000
Subject: [PATCH] incl guards

---
 datatypes.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/datatypes.h b/datatypes.h
index 2f3afe0..8603acd 100644
--- a/datatypes.h
+++ b/datatypes.h
@@ -1,3 +1,5 @@
+#ifndef DTYPE_H
+#define DTYPE_H
 #include <stdlib.h>
 
 enum {
@@ -55,3 +57,4 @@ void * arlst_del(ArrayList *l, int id);
 int arlst_add(ArrayList *l, void *item); 
 void *arlst_get(ArrayList *l, int id);
 
+#endif