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Copy addition expressions

Samuel W. Flint 5 years ago
parent
commit
cbb528960e
1 changed files with 4 additions and 0 deletions
  1. 4 0
      larcs.org

+ 4 - 0
larcs.org

@@ -350,6 +350,10 @@ CLOSED: [2019-01-17 Thu 09:53]
   (defmethod to-sexp ((expression <addition>) &optional resolve-constants-p)
     `(+ ,@(mapcar #'(lambda (exp) (to-sexp exp resolve-constants-p))
                   (slot-value expression 'terms))))
+
+  (defmethod copy-expression ((expression <addition>))
+    (make-instance '<addition>
+                   :terms (mapcar #'copy-expression (slot-value expression 'terms))))
 #+END_SRC
 
 *** DONE Subtractions