Add hash-table-count function

diff --git a/src/hash-table.lisp b/src/hash-table.lisp
index 0641ca8..301addd 100644 (file)
--- a/src/hash-table.lisp
+++ b/src/hash-table.lisp
@@ -106,3 +106,12 @@
         (hash (funcall (cadr hash-table) key)))
     (prog1 (in hash obj)
       (delete-property hash obj))))
+
+
+(defun hash-table-count (hash-table)
+  (let ((count 0))
+    (map-for-in (lambda (x)
+                  (declare (ignore x))
+                  (incf count))
+                (caddr hash-table))
+    count))