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-rw-r--r--Lisp/data-types.lisp4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lisp/data-types.lisp b/Lisp/data-types.lisp
index 1095e38..25bbc21 100644
--- a/Lisp/data-types.lisp
+++ b/Lisp/data-types.lisp
@@ -218,3 +218,7 @@ an __exception__, you can simply send it the `self' message.
;;;; (@* "Convenience types")
(deftype c-pointer ()
'(satisfies pointerp))
+
+
+(deftype argument-number ()
+ `(integer 0 ,call-arguments-limit))