add license and headers

1 files changed, 15 insertions, 0 deletions

diff --git a/Gate.cpp b/Gate.cpp
index 0aaed25..d5779c8 100644
--- a/Gate.cpp
+++ b/Gate.cpp
@@ -1,3 +1,18 @@
+/*
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
 #include "Gate.h"
 
 int Gate::gate_id_counter = 0;