From 426133915bc1cce66a9421409ffe47e50d1bd0c6 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 11 Sep 2022 10:35:38 -0400
Subject: Add missing copyright info and include guard.

---
 base64.hpp             | 2 ++
 subslice_signature.hpp | 4 ++++
 thread_pool.hpp        | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/base64.hpp b/base64.hpp
index 3534b75..aa48fa7 100644
--- a/base64.hpp
+++ b/base64.hpp
@@ -1,3 +1,5 @@
+//Chris Xiong 2022
+//License: MPL-2.0
 #include <cstdint>
 #include <string>
 
diff --git a/subslice_signature.hpp b/subslice_signature.hpp
index bf3822f..928d396 100644
--- a/subslice_signature.hpp
+++ b/subslice_signature.hpp
@@ -1,5 +1,7 @@
 //Chris Xiong 2022
 //License: MPL-2.0
+#ifndef SUBSLICE_SIGNATURE_HPP
+#define SUBSLICE_SIGNATURE_HPP
 #include "signature.hpp"
 
 #include <vector>
@@ -30,3 +32,5 @@ public:
                                              const signature_config &fcfg,
                                              const signature_config &scfg);
 };
+
+#endif
diff --git a/thread_pool.hpp b/thread_pool.hpp
index c28b5e8..6aea4ec 100644
--- a/thread_pool.hpp
+++ b/thread_pool.hpp
@@ -1,3 +1,5 @@
+//Chris Xiong 2022
+//License: MPL-2.0
 #ifndef THREAD_POOL_H
 #define THREAD_POOL_H
 
-- 
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