From 7d8eabf47938ff4a056f94e8cbeb4a49ab9ea2d1 Mon Sep 17 00:00:00 2001
From: Felix Brendel <felix.brendel@freenet.de>
Date: Wed, 8 Jan 2020 11:01:18 +0100
Subject: [PATCH] arraylsits can now reserve

---
 arraylist.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arraylist.hpp b/arraylist.hpp
index 709bd07..6590b22 100644
--- a/arraylist.hpp
+++ b/arraylist.hpp
@@ -51,6 +51,13 @@ struct Array_List {
         next_index++;
     }
 
+    void reserve(unsigned int count) {
+        if (next_index+count <= length) {
+            length *= 2;
+            data = (type*)realloc(data, length * sizeof(type));
+        }
+    }
+
     type& operator[](int index) {
         return data[index];
     }