ststic arrays and dynamic arrays

tests/arr_dynamic.sl

@@ -0,0 +1,23 @@
+import ../stdlib/stdlib.sl
+import ../stdlib/io.sl
+import ../stdlib/arr.sl
+
+word main
+    0 arr_new
+
+    dup arr_cap puti cr
+
+    10 swap arr_push
+    20 swap arr_push
+    30 swap arr_push
+
+    dup arr_len puti cr
+    dup arr_cap puti cr
+
+    # print elements via explicit offsets: data[i] = @ (arr_data + i*8)
+    dup arr_data 0 8 * + @ puti cr
+    dup arr_data 1 8 * + @ puti cr
+    dup arr_data 2 8 * + @ puti cr
+
+    arr_free
+end