Add class MLKNumber, unify arithmetic interface.

1 files changed, 27 insertions, 0 deletions

diff --git a/MLKNumber.h b/MLKNumber.h
new file mode 100644
index 0000000..94ec819
--- /dev/null
+++ b/MLKNumber.h
@@ -0,0 +1,27 @@
+/* -*- mode: objc; coding: utf-8 -*- */
+/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
+ * Copyright (C) 2008  Matthias Andreas Benkard.
+ *
+ * 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/>.
+ */
+
+#import "MLKLispValue.h"
+
+
+@interface MLKNumber : MLKLispValue
+-(MLKNumber *) add:(MLKNumber *)arg;
+-(MLKNumber *) subtract:(MLKNumber *)arg;
+-(MLKNumber *) multiplyWith:(MLKNumber *)arg;
+-(MLKNumber *) divideBy:(MLKNumber *)arg;
+@end