1 files changed, 16 insertions, 0 deletions
diff --git a/src/quad.h b/src/quad.h
index 730f45d..51ff6ee 100644
--- a/src/quad.h
+++ b/src/quad.h
@@ -1,3 +1,19 @@
+/* Copyright (c) 2019, Anthony Latorre <tlatorre at uchicago>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #ifndef QUAD_H
 #define QUAD_H