add copyright headers

lib/dice.c

@@ -1,3 +1,22 @@
+/*
+ * This file is part of libdice.
+ *
+ * Copyright (C) 2018 Florian Stinglmayr <florian@n0la.org>
+ *
+ * libdice is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * libdice 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libdice.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "dice.h"
 #include "dice_parse.h"
 

lib/dice.h

@@ -1,3 +1,22 @@
+/*
+ * This file is part of libdice.
+ *
+ * Copyright (C) 2018 Florian Stinglmayr <florian@n0la.org>
+ *
+ * libdice is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * libdice 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libdice.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef LIBDICE_DICE_H
 #define LIBDICE_DICE_H
 

lib/diceexpr.c

@@ -705,11 +705,13 @@ static void pn (const te_expr *n, int depth) {
     }
 }
 
-
 static void te_print(const te_expr *n) {
     pn(n, 0);
 }
 
+/* libdice specific functions
+ */
+
 struct dice_expression_
 {
     te_expr *expr;