x := [array(),table(),write,[],&input,1,"abc",'aa',2.0,&null] ----> list(10) x := sort(x) ----> list(10) &null 1 2.0 "abc" 'a' &input function write list(0) table(0) record array(7) every write(image(!x)) ----> none Run-time error 116 at line 12 in expr24.icn invalid type to element generator offending value: function image