From a21ce04345089c599ca38ec8b0b51a26cbfe76b0 Mon Sep 17 00:00:00 2001
From: Tijmen van Nesselrooij <tijmen_222@hotmail.com>
Date: Tue, 7 May 2019 18:50:48 +0200
Subject: [PATCH] pragma once

---
 sequential/linkedlist.hpp | 1 +
 sequential/ringbuffer.hpp | 1 +
 sequential/vector.hpp     | 1 +
 test/testutil.hpp         | 1 +
 tree/binarytree.hpp       | 1 +
 5 files changed, 5 insertions(+)

diff --git a/sequential/linkedlist.hpp b/sequential/linkedlist.hpp
index 9713a89..96d4869 100644
--- a/sequential/linkedlist.hpp
+++ b/sequential/linkedlist.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include <memory>
 #include <stdexcept>
 
diff --git a/sequential/ringbuffer.hpp b/sequential/ringbuffer.hpp
index 0a663f1..6d835ea 100644
--- a/sequential/ringbuffer.hpp
+++ b/sequential/ringbuffer.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include "vector.hpp"
 
 template<class T>
diff --git a/sequential/vector.hpp b/sequential/vector.hpp
index fc851e6..2a19be2 100644
--- a/sequential/vector.hpp
+++ b/sequential/vector.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include <cstdlib>
 #include <stdexcept>
 
diff --git a/test/testutil.hpp b/test/testutil.hpp
index 2690320..6570323 100644
--- a/test/testutil.hpp
+++ b/test/testutil.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include <cstdio>
 #include <exception>
 #include <random>
diff --git a/tree/binarytree.hpp b/tree/binarytree.hpp
index 18a34a7..b74ec3c 100644
--- a/tree/binarytree.hpp
+++ b/tree/binarytree.hpp
@@ -1,3 +1,4 @@
+#pragma once
 #include <memory>
 
 namespace BinaryTree