From d10ff99fc9bee538ebc7da23ba2f8b476ef151e1 Mon Sep 17 00:00:00 2001
From: Keuin <keuinx@gmail.com>
Date: Mon, 11 Apr 2022 21:32:31 +0800
Subject: Fix vec.h multiple inclusion.

---
 vec.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'vec.h')

diff --git a/vec.h b/vec.h
index ad5f727..da7abeb 100644
--- a/vec.h
+++ b/vec.h
@@ -2,6 +2,9 @@
 // Created by Keuin on 2022/4/11.
 //
 
+#ifndef RT_VEC_H
+#define RT_VEC_H
+
 #include <cmath>
 
 static inline bool eq(int a, int b) {
@@ -116,3 +119,5 @@ using vec3f = vec3<float>;
 
 // 3-dim vector (double)
 using vec3d = vec3<double>;
+
+#endif //RT_VEC_H
\ No newline at end of file
-- 
cgit v1.2.3