Hi friends,
 
I am a novice to the OCAML language. I am trying to write a small
program and I am facing with a syntax error, any help will be
appreciated
 
let rec undup lst = try match lst with
  |[]->[]
  |h::tail -> match tail with
  |[]->[]
  |h::xt -> if (h=List.hd xt) then h::undup xt
  else raise(Failure "ERROR-Your list does not contain duplicates");;
 
Error: line 6, characters 67-69
Syntax error.
 
 
Bhavik Gandhi