1 files changed, 15 insertions, 0 deletions
diff --git a/tests/map.bth b/tests/map.bth
new file mode 100644
index 0000000..aa9f45e
--- /dev/null
+++ b/tests/map.bth
@@ -0,0 +1,15 @@
+(set map' (fn (f ix in out)
+              (if (< ix (len in))
+                  (let (elem (in ix)
+                        felem (f elem)
+                        newix (+ 1 ix))
+                   (set (out ix) felem)
+                   (map' f newix in out))
+                  out)))
+(set map (fn (f in) (map' f 0 in (arr))))
+
+(let (a [1 2 3 4 5 6 7 8 9]
+	  f1 (fn (x) (* 10 x))
+	  f2 (fn (x) (* x x)))
+	(say (map f1 a))
+	(say (map f2 a)))