/*
* Test board mask calculation functions.
- * Copyright © 2022 Nick Bowler
+ * Copyright © 2022-2023 Nick Bowler
*
* 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
show_patterns("above", board_above);
putchar('\n');
show_patterns("below", board_below);
+
+ return 0;
}